TH2D Class Reference

2-D histogram with a double per channel (see TH1 documentation)

Definition at line 400 of file TH2.h.

Public Types
enum	{   kNoAxis = 0 , kXaxis = (1ULL << (0)) , kYaxis = (1ULL << (1)) , kZaxis = (1ULL << (2)) ,   kAllAxes = kXaxis | kYaxis | kZaxis }
	Enumeration specifying which axes can be extended. More...
enum	{ kSingleKey = (1ULL << (0)) , kOverwrite = (1ULL << (1)) , kWriteDelete = (1ULL << (2)) }
enum	{ kNstat = 13 }
	Size of statistics data (size of array used in GetStats()/ PutStats ). More...
enum	{   kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,   kBitMask = 0x00ffffff }
enum	EBinErrorOpt { kNormal = 0 , kPoisson = 1 , kPoisson2 = 2 }
	Enumeration specifying type of statistics for bin errors. More...
enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << (3)) }
enum	EInconsistencyBits {   kFullyConsistent = 0 , kDifferentLabels = (1ULL << (0)) , kDifferentBinLimits = (1ULL << (1)) , kDifferentAxisLimits = (1ULL << (2)) ,   kDifferentNumberOfBins = (1ULL << (3)) , kDifferentDimensions = (1ULL << (4)) }
	Enumeration specifying inconsistencies between two histograms, in increasing severity. More...
enum	EStatOverflows { kIgnore = 0 , kConsider = 1 , kNeutral = 2 }
	Enumeration specifying the way to treat statoverflow. More...
enum	EStatusBits {   kNoStats = (1ULL << (9)) , kUserContour = (1ULL << (10)) , kLogX = (1ULL << (15)) , kIsZoomed = (1ULL << (16)) ,   kNoTitle = (1ULL << (17)) , kIsAverage = (1ULL << (18)) , kIsNotW = (1ULL << (19)) , kAutoBinPTwo = (1ULL << (20)) ,   kIsHighlight = (1ULL << (21)) }
	TH1 status bits. More...

Public Member Functions
	TH2D ()
	Constructor.
	TH2D (const char *name, const char *title, Int_t nbinsx, const Double_t *xbins, Int_t nbinsy, const Double_t *ybins)
	Constructor (see TH2::TH2 for explanation of parameters).
	TH2D (const char *name, const char *title, Int_t nbinsx, const Double_t *xbins, Int_t nbinsy, Double_t ylow, Double_t yup)
	Constructor (see TH2::TH2 for explanation of parameters).
	TH2D (const char *name, const char *title, Int_t nbinsx, const Float_t *xbins, Int_t nbinsy, const Float_t *ybins)
	Constructor (see TH2::TH2 for explanation of parameters).
	TH2D (const char *name, const char *title, Int_t nbinsx, Double_t xlow, Double_t xup, Int_t nbinsy, const Double_t *ybins)
	Constructor (see TH2::TH2 for explanation of parameters).
	TH2D (const char *name, const char *title, Int_t nbinsx, Double_t xlow, Double_t xup, Int_t nbinsy, Double_t ylow, Double_t yup)
	Constructor (see TH2::TH2 for explanation of parameters).
	TH2D (const TH2D &h2d)
	Copy constructor.
	TH2D (const TMatrixDBase &m)
	Constructor Construct a 2-D histogram from a TMatrixDBase.
	~TH2D () override
	Destructor.
void	AbstractMethod (const char *method) const
	Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it.
virtual Bool_t	Add (const TH1 *h, const TH1 *h2, Double_t c1=1, Double_t c2=1)
	Replace contents of this histogram by the addition of h1 and h2.
virtual Bool_t	Add (const TH1 *h1, Double_t c1=1)
	Performs the operation: this = this + c1*h1 If errors are defined (see TH1::Sumw2), errors are also recalculated.
virtual Bool_t	Add (TF1 *h1, Double_t c1=1, Option_t *option="")
	Performs the operation: this = this + c1*f1 if errors are defined (see TH1::Sumw2), errors are also recalculated.
void	AddAt (Double_t c, Int_t i)
	Set the double c value at position i in the array.
void	AddBinContent (Int_t bin) override
	Increment bin content by 1.
void	AddBinContent (Int_t bin, Double_t w) override
	Increment bin content by a weight w Passing an out-of-range bin leads to undefined behavior.
void	AddBinContent (Int_t binx, Int_t biny)
	Increment 2D bin content by 1.
void	AddBinContent (Int_t binx, Int_t biny, Double_t w)
	Increment 2D bin content by a weight w.
void	Adopt (Int_t n, Double_t *array)
	Adopt array arr into TArrayD, i.e.
virtual Double_t	AndersonDarlingTest (const TH1 *h2, Double_t &advalue) const
virtual Double_t	AndersonDarlingTest (const TH1 *h2, Option_t *option="") const
virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.
Double_t	At (Int_t i) const
void	Browse (TBrowser *b) override
	Browse the Histogram object.
Int_t	BufferEmpty (Int_t action=0) override
	Fill histogram with all entries in the buffer.
virtual Bool_t	CanExtendAllAxes () const
ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.
virtual Double_t	Chi2Test (const TH1 *h2, Option_t *option="UU", Double_t *res=nullptr) const
virtual Double_t	Chi2TestX (const TH1 *h2, Double_t &chi2, Int_t &ndf, Int_t &igood, Option_t *option="UU", Double_t *res=nullptr) const
virtual Double_t	Chisquare (TF1 *f1, Option_t *option="") const
virtual const char *	ClassName () const
	Returns name of class to which the object belongs.
void	Clear (Option_t *option="") override
	Set name and title to empty strings ("").
virtual void	ClearUnderflowAndOverflow ()
TObject *	Clone (const char *newname="") const override
	Make a clone of an object using the Streamer facility.
Int_t	Compare (const TObject *obj) const override
	Compare two TNamed objects.
virtual Double_t	ComputeIntegral (Bool_t onlyPositive=false, Option_t *option="")
void	Copy (TArrayD &array) const
void	Copy (TAttFill &attfill) const
void	Copy (TAttLine &attline) const
void	Copy (TAttMarker &attmarker) const
void	Copy (TObject &hnew) const override
	Copy.
virtual void	Delete (Option_t *option="")
	Delete this object.
virtual void	DirectoryAutoAdd (TDirectory *)
Int_t	DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)
Int_t	DistancetoPrimitive (Int_t px, Int_t py) override
	Computes distance from point (px,py) to the object.
virtual Bool_t	Divide (const TH1 *h1)
virtual Bool_t	Divide (const TH1 *h1, const TH1 *h2, Double_t c1=1, Double_t c2=1, Option_t *option="")
virtual Bool_t	Divide (TF1 *f1, Double_t c1=1)
void	Draw (Option_t *option="") override
	Default Draw method for all objects.
virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.
virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
virtual TH1 *	DrawCopy (Option_t *option="", const char *name_postfix="_copy") const
virtual TH1 *	DrawNormalized (Option_t *option="", Double_t norm=1) const
virtual void	DrawPanel ()
virtual void	Dump () const
	Dump contents of object on stdout.
virtual void	Error (const char *method, const char *msgfmt,...) const
	Issue error message.
virtual void	Eval (TF1 *f1, Option_t *option="")
virtual void	Execute (const char *method, const char *params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.
void	ExecuteEvent (Int_t event, Int_t px, Int_t py) override
	Execute action corresponding to an event at (px,py).
virtual void	ExtendAxis (Double_t x, TAxis *axis)
virtual void	Fatal (const char *method, const char *msgfmt,...) const
	Issue fatal error message.
virtual TH1 *	FFT (TH1 *h_output, Option_t *option)
virtual Int_t	Fill (const char *namex, const char *namey, Double_t w)
	Increment cell defined by namex,namey by a weight w.
virtual Int_t	Fill (const char *namex, Double_t y, Double_t w)
	Increment cell defined by namex,y by a weight w.
virtual Int_t	Fill (Double_t x, const char *namey, Double_t w)
	Increment cell defined by x,namey by a weight w.
Int_t	Fill (Double_t x, Double_t y) override
	Increment cell defined by x,y by 1.
virtual Int_t	Fill (Double_t x, Double_t y, Double_t w)
	Increment cell defined by x,y by a weight w.
virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.
void	FillN (Int_t ntimes, const Double_t *x, const Double_t *y, const Double_t *w, Int_t stride=1) override
	Fill a 2-D histogram with an array of values and weights.
void	FillN (Int_t, const Double_t *, const Double_t *, Int_t) override
void	FillRandom (const char *fname, Int_t ntimes=5000, TRandom *rng=nullptr)
void	FillRandom (TF1 *function, Int_t ntimes=5000, TRandom *rng=nullptr) override
	Fill histogram following distribution in function function.
void	FillRandom (TH1 *h, Int_t ntimes=5000, TRandom *rng=nullptr) override
	Fill histogram following distribution in histogram h.
virtual Int_t	FindBin (Double_t x, Double_t y=0, Double_t z=0)
virtual Int_t	FindFirstBinAbove (Double_t threshold=0, Int_t axis=1, Int_t firstBin=1, Int_t lastBin=-1) const
virtual Int_t	FindFixBin (Double_t x, Double_t y=0, Double_t z=0) const
virtual Int_t	FindLastBinAbove (Double_t threshold=0, Int_t axis=1, Int_t firstBin=1, Int_t lastBin=-1) const
TObject *	FindObject (const char *name) const override
	Must be redefined in derived classes.
TObject *	FindObject (const TObject *obj) const override
	Must be redefined in derived classes.
virtual TFitResultPtr	Fit (const char *formula, Option_t *option="", Option_t *goption="", Double_t xmin=0, Double_t xmax=0)
virtual TFitResultPtr	Fit (TF1 *f1, Option_t *option="", Option_t *goption="", Double_t xmin=0, Double_t xmax=0)
virtual void	FitPanel ()
virtual void	FitSlicesX (TF1 *f1=nullptr, Int_t firstybin=0, Int_t lastybin=-1, Int_t cut=0, Option_t *option="QNR", TObjArray *arr=nullptr)
	Project slices along X in case of a 2-D histogram, then fit each slice with function f1 and make a histogram for each fit parameter Only bins along Y between firstybin and lastybin are considered.
virtual void	FitSlicesY (TF1 *f1=nullptr, Int_t firstxbin=0, Int_t lastxbin=-1, Int_t cut=0, Option_t *option="QNR", TObjArray *arr=nullptr)
	Project slices along Y in case of a 2-D histogram, then fit each slice with function f1 and make a histogram for each fit parameter Only bins along X between firstxbin and lastxbin are considered.
Double_t *	GetArray ()
const Double_t *	GetArray () const
TH1 *	GetAsymmetry (TH1 *h2, Double_t c2=1, Double_t dc2=0)
Double_t	GetAt (Int_t i) const override
virtual Color_t	GetAxisColor (Option_t *axis="X") const
	Return the number of divisions for "axis".
virtual Float_t	GetBarOffset () const
virtual Float_t	GetBarWidth () const
Int_t	GetBin (Int_t binx, Int_t biny, Int_t binz=0) const override
virtual Double_t	GetBinCenter (Int_t bin) const
virtual Double_t	GetBinContent (Int_t bin) const
Double_t	GetBinContent (Int_t binx, Int_t biny) const override
Double_t	GetBinContent (Int_t binx, Int_t biny, Int_t) const override
virtual Double_t	GetBinError (Int_t bin) const
virtual Double_t	GetBinError (Int_t binx, Int_t biny) const
virtual Double_t	GetBinError (Int_t binx, Int_t biny, Int_t binz) const
virtual Double_t	GetBinErrorLow (Int_t bin) const
virtual Double_t	GetBinErrorLow (Int_t binx, Int_t biny)
virtual EBinErrorOpt	GetBinErrorOption () const
virtual Double_t	GetBinErrorUp (Int_t bin) const
virtual Double_t	GetBinErrorUp (Int_t binx, Int_t biny)
virtual Double_t	GetBinLowEdge (Int_t bin) const
virtual Double_t	GetBinWidth (Int_t bin) const
virtual Double_t	GetBinWithContent (Double_t c, Int_t &binx, Int_t firstx=0, Int_t lastx=0, Double_t maxdiff=0) const
virtual Double_t	GetBinWithContent2 (Double_t c, Int_t &binx, Int_t &biny, Int_t firstxbin=1, Int_t lastxbin=-1, Int_t firstybin=1, Int_t lastybin=-1, Double_t maxdiff=0) const
	compute first cell (binx,biny) in the range [firstxbin,lastxbin][firstybin,lastybin] for which diff = abs(cell_content-c) <= maxdiff In case several cells in the specified range with diff=0 are found the first cell found is returned in binx,biny.
virtual void	GetBinXYZ (Int_t binglobal, Int_t &binx, Int_t &biny, Int_t &binz) const
const Double_t *	GetBuffer () const
Int_t	GetBufferLength () const
Int_t	GetBufferSize () const
virtual Double_t	GetCellContent (Int_t binx, Int_t biny) const
virtual Double_t	GetCellError (Int_t binx, Int_t biny) const
virtual void	GetCenter (Double_t *center) const
virtual Int_t	GetContour (Double_t *levels=nullptr)
virtual Double_t	GetContourLevel (Int_t level) const
virtual Double_t	GetContourLevelPad (Int_t level) const
virtual Double_t	GetCorrelationFactor (Int_t axis1=1, Int_t axis2=2) const
	Return correlation factor between axis1 and axis2.
virtual Double_t	GetCovariance (Int_t axis1=1, Int_t axis2=2) const
	Return covariance between axis1 and axis2.
TH1 *	GetCumulative (Bool_t forward=kTRUE, const char *suffix="_cumulative") const
virtual Int_t	GetDimension () const
TDirectory *	GetDirectory () const
virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.
virtual Double_t	GetEffectiveEntries () const
virtual Double_t	GetEntries () const
virtual Color_t	GetFillColor () const
	Return the fill area color.
virtual Style_t	GetFillStyle () const
	Return the fill area style.
virtual TF1 *	GetFunction (const char *name) const
virtual const char *	GetIconName () const
	Returns mime type name of object.
virtual Double_t *	GetIntegral ()
virtual Double_t	GetKurtosis (Int_t axis=1) const
virtual Color_t	GetLabelColor (Option_t *axis="X") const
	Return the "axis" label color.
virtual Style_t	GetLabelFont (Option_t *axis="X") const
	Return the "axis" label font.
virtual Float_t	GetLabelOffset (Option_t *axis="X") const
	Return the "axis" label offset.
virtual Float_t	GetLabelSize (Option_t *axis="X") const
	Return the "axis" label size.
virtual Color_t	GetLineColor () const
	Return the line color.
virtual Style_t	GetLineStyle () const
	Return the line style.
virtual Width_t	GetLineWidth () const
	Return the line width.
TList *	GetListOfFunctions () const
virtual void	GetLowEdge (Double_t *edge) const
virtual Color_t	GetMarkerColor () const
	Return the marker color.
virtual Size_t	GetMarkerSize () const
	Return the marker size.
virtual Style_t	GetMarkerStyle () const
	Return the marker style.
virtual Double_t	GetMaximum (Double_t maxval=FLT_MAX) const
virtual Int_t	GetMaximumBin () const
virtual Int_t	GetMaximumBin (Int_t &locmax, Int_t &locmay, Int_t &locmaz) const
virtual Double_t	GetMaximumStored () const
virtual Double_t	GetMean (Int_t axis=1) const
virtual Double_t	GetMeanError (Int_t axis=1) const
virtual Double_t	GetMinimum (Double_t minval=-FLT_MAX) const
virtual void	GetMinimumAndMaximum (Double_t &min, Double_t &max) const
virtual Int_t	GetMinimumBin () const
virtual Int_t	GetMinimumBin (Int_t &locmix, Int_t &locmiy, Int_t &locmiz) const
virtual Double_t	GetMinimumStored () const
const char *	GetName () const override
	Returns name of object.
virtual Int_t	GetNbinsX () const
virtual Int_t	GetNbinsY () const
virtual Int_t	GetNbinsZ () const
virtual Int_t	GetNcells () const
virtual Int_t	GetNdivisions (Option_t *axis="X") const
	Return the number of divisions for "axis".
virtual Double_t	GetNormFactor () const
char *	GetObjectInfo (Int_t px, Int_t py) const override
	Returns string containing info about the object at position (px,py).
Option_t *	GetOption () const override
TVirtualHistPainter *	GetPainter (Option_t *option="")
virtual Int_t	GetQuantiles (Int_t n, Double_t *xp, const Double_t *p=nullptr)
virtual Double_t	GetRandom (TRandom *rng=nullptr, Option_t *option="") const
virtual void	GetRandom2 (Double_t &x, Double_t &y, TRandom *rng=nullptr, Option_t *option="")
	Return 2 random numbers along axis x and y distributed according to the cell-contents of this 2-D histogram.
Double_t	GetRMS (Int_t axis=1) const
	This function returns the Standard Deviation (Sigma) of the distribution not the Root Mean Square (RMS).
Double_t	GetRMSError (Int_t axis=1) const
Int_t	GetSize () const
virtual Double_t	GetSkewness (Int_t axis=1) const
EStatOverflows	GetStatOverflows () const
	Get the behaviour adopted by the object about the statoverflows. See EStatOverflows for more information.
void	GetStats (Double_t *stats) const override
	Fill the array stats from the contents of this histogram The array stats must be correctly dimensioned in the calling program.
virtual Double_t	GetStdDev (Int_t axis=1) const
virtual Double_t	GetStdDevError (Int_t axis=1) const
Stat_t	GetSum () const
Double_t	GetSumOfAllWeights (const bool includeOverflow, Double_t *sumWeightSquare=nullptr) const
virtual Double_t	GetSumOfWeights () const
	Return the sum of weights across all bins excluding under/overflows.
virtual TArrayD *	GetSumw2 ()
virtual const TArrayD *	GetSumw2 () const
virtual Int_t	GetSumw2N () const
virtual Float_t	GetTickLength (Option_t *axis="X") const
	Return the "axis" tick length.
const char *	GetTitle () const override
	Returns title of object.
virtual Style_t	GetTitleFont (Option_t *axis="X") const
	Return the "axis" title font.
virtual Float_t	GetTitleOffset (Option_t *axis="X") const
	Return the "axis" title offset.
virtual Float_t	GetTitleSize (Option_t *axis="X") const
	Return the "axis" title size.
virtual UInt_t	GetUniqueID () const
	Return the unique object id.
TAxis *	GetXaxis ()
const TAxis *	GetXaxis () const
TAxis *	GetYaxis ()
const TAxis *	GetYaxis () const
TAxis *	GetZaxis ()
const TAxis *	GetZaxis () const
virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.
ULong_t	Hash () const override
	Return hash value for this object.
Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.
virtual void	Info (const char *method, const char *msgfmt,...) const
	Issue info message.
virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".
virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.
virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.
virtual Double_t	Integral (Int_t binx1, Int_t binx2, Int_t biny1, Int_t biny2, Option_t *option="") const
	Return integral of bin contents in range [firstxbin,lastxbin],[firstybin,lastybin] for a 2-D histogram By default the integral is computed as the sum of bin contents in the range.
virtual Double_t	Integral (Int_t, Int_t, Int_t, Int_t, Int_t, Int_t, Option_t *="") const
Double_t	Integral (Option_t *option="") const override
	Return integral of bin contents.
virtual Double_t	IntegralAndError (Int_t binx1, Int_t binx2, Int_t biny1, Int_t biny2, Double_t &err, Option_t *option="") const
	Return integral of bin contents in range [firstxbin,lastxbin],[firstybin,lastybin] for a 2-D histogram.
Double_t	Interpolate (Double_t x, Double_t y) const override
	Given a point P(x,y), Interpolate approximates the value via bilinear interpolation based on the four nearest bin centers see Wikipedia, Bilinear Interpolation Andy Mastbaum 10/8/2008 vaguely based on R.Raja 6-Sep-2008.
Double_t	Interpolate (Double_t x, Double_t y, Double_t z) const override
	illegal for a TH2
void	InvertBit (UInt_t f)
TClass *	IsA () const override
Bool_t	IsBinOverflow (Int_t bin, Int_t axis=0) const
Bool_t	IsBinUnderflow (Int_t bin, Int_t axis=0) const
Bool_t	IsDestructed () const
	IsDestructed.
virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).
virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
virtual Bool_t	IsHighlight () const
Bool_t	IsOnHeap () const
Bool_t	IsSortable () const override
virtual Bool_t	IsTransparent () const
Bool_t	IsZombie () const
Double_t	KolmogorovTest (const TH1 *h2, Option_t *option="") const override
	Statistical test of compatibility in shape between THIS histogram and h2, using Kolmogorov test.
virtual void	LabelsDeflate (Option_t *axis="X")
virtual void	LabelsInflate (Option_t *axis="X")
virtual void	LabelsOption (Option_t *option="h", Option_t *axis="X")
void	ls (Option_t *option="") const override
	List TNamed name and title.
void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).
virtual Long64_t	Merge (TCollection *list)
Long64_t	Merge (TCollection *list, Option_t *option)
virtual void	Modify ()
virtual void	Modify ()
virtual void	Modify ()
virtual void	ModifyOn (TVirtualPad &pad)
virtual void	ModifyOn (TVirtualPad &pad)
virtual void	ModifyOn (TVirtualPad &pad)
virtual Bool_t	Multiply (const TH1 *h1)
virtual Bool_t	Multiply (const TH1 *h1, const TH1 *h2, Double_t c1=1, Double_t c2=1, Option_t *option="")
virtual Bool_t	Multiply (TF1 *f1, Double_t c1=1)
virtual void	Normalize (Option_t *option="")
virtual Bool_t	Notify ()
	This method must be overridden to handle object notification (the base implementation is no-op).
void	Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.
void	operator delete (void *, size_t)
	Operator delete for sized deallocation.
void	operator delete (void *ptr)
	Operator delete.
void	operator delete (void *ptr, void *vp)
	Only called by placement new when throwing an exception.
void	operator delete[] (void *, size_t)
	Operator delete [] for sized deallocation.
void	operator delete[] (void *ptr)
	Operator delete [].
void	operator delete[] (void *ptr, void *vp)
	Only called by placement new[] when throwing an exception.
void *	operator new (size_t sz)
void *	operator new (size_t sz, void *vp)
void *	operator new[] (size_t sz)
void *	operator new[] (size_t sz, void *vp)
TH2D &	operator= (const TH2D &h1)
	Operator =.
Double_t &	operator[] (Int_t i)
Double_t	operator[] (Int_t i) const
void	Paint (Option_t *option="") override
	This method must be overridden if a class wants to paint itself.
virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.
void	Print (Option_t *option="") const override
	This method must be overridden when a class wants to print itself.
TProfile *	ProfileX (const char *name="_pfx", Int_t firstybin=1, Int_t lastybin=-1, Option_t *option="") const
	Project a 2-D histogram into a profile histogram along X (integration along Y).
TProfile *	ProfileY (const char *name="_pfy", Int_t firstxbin=1, Int_t lastxbin=-1, Option_t *option="") const
	Project a 2-D histogram into a profile histogram along Y (integration along X).
TH1D *	ProjectionX (const char *name="_px", Int_t firstybin=0, Int_t lastybin=-1, Option_t *option="") const
	Project a 2-D histogram into a 1-D histogram along X (integration along Y).
TH1D *	ProjectionY (const char *name="_py", Int_t firstxbin=0, Int_t lastxbin=-1, Option_t *option="") const
	Project a 2-D histogram into a 1-D histogram along Y (integration along X).
void	PutStats (Double_t *stats) override
	Replace current statistics with the values in array stats.
TH1D *	QuantilesX (Double_t prob=0.5, const char *name="_qx") const
	Compute the X distribution of quantiles in the other variable Y name is the name of the returned histogram prob is the probability content for the quantile (0.5 is the default for the median) An approximate error for the quantile is computed assuming that the distribution in the other variable is normal.
TH1D *	QuantilesY (Double_t prob=0.5, const char *name="_qy") const
	Compute the Y distribution of quantiles in the other variable X name is the name of the returned histogram prob is the probability content for the quantile (0.5 is the default for the median) An approximate error for the quantile is computed assuming that the distribution in the other variable is normal.
virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.
TH2 *	Rebin (Int_t ngroup=2, const char *newname="", const Double_t *xbins=nullptr) override
	Override TH1::Rebin as TH2::RebinX Rebinning in variable binning as for TH1 is not allowed If a non-null pointer is given an error is flagged see RebinX and Rebin2D.
virtual TH2 *	Rebin2D (Int_t nxgroup=2, Int_t nygroup=2, const char *newname="")
	Rebin this histogram grouping nxgroup/nygroup bins along the xaxis/yaxis together.
virtual void	RebinAxis (Double_t x, TAxis *axis)
TH2 *	RebinX (Int_t ngroup=2, const char *newname="") override
	Rebin only the X axis see Rebin2D.
virtual TH2 *	RebinY (Int_t ngroup=2, const char *newname="")
	Rebin only the Y axis see Rebin2D.
virtual void	Rebuild (Option_t *option="")
void	RecursiveRemove (TObject *obj) override
	Recursively remove this object from a list.
void	Reset ()
void	Reset (Double_t val)
void	Reset (Option_t *option="") override
	Reset this histogram: contents, errors, etc.
virtual void	ResetAttFill (Option_t *option="")
virtual void	ResetAttLine (Option_t *option="")
virtual void	ResetAttMarker (Option_t *toption="")
void	ResetBit (UInt_t f)
virtual void	ResetStats ()
void	SaveAs (const char *filename="hist", Option_t *option="") const override
	Save this object in the file specified by filename.
virtual void	SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001)
virtual void	SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)
virtual void	SaveMarkerAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t sizdef=1)
void	SavePrimitive (std::ostream &out, Option_t *option="") override
	Save a primitive as a C++ statement(s) on output stream "out".
virtual void	Scale (Double_t c1=1, Option_t *option="")
void	Set (Int_t n) override
	Set size of this array to n doubles.
void	Set (Int_t n, const Double_t *array)
	Set size of this array to n doubles and set the contents This function should not be called if the array was declared via Adopt.
void	SetAt (Double_t v, Int_t i) override
virtual void	SetAxisColor (Color_t color=1, Option_t *axis="X")
	Set color to draw the axis line and tick marks.
virtual void	SetAxisRange (Double_t xmin, Double_t xmax, Option_t *axis="X")
	Set the "axis" range.
virtual void	SetBarOffset (Float_t offset=0.25)
virtual void	SetBarWidth (Float_t width=0.5)
void	SetBinContent (Int_t bin, Double_t content) override
	Set bin content.
void	SetBinContent (Int_t binx, Int_t biny, Double_t content) override
void	SetBinContent (Int_t binx, Int_t biny, Int_t, Double_t content) override
virtual void	SetBinError (Int_t bin, Double_t error)
virtual void	SetBinError (Int_t binx, Int_t biny, Double_t error)
virtual void	SetBinError (Int_t binx, Int_t biny, Int_t binz, Double_t error)
virtual void	SetBinErrorOption (EBinErrorOpt type)
virtual void	SetBins (Int_t nx, const Double_t *xBins)
virtual void	SetBins (Int_t nx, const Double_t *xBins, Int_t ny, const Double_t *yBins)
virtual void	SetBins (Int_t nx, const Double_t *xBins, Int_t ny, const Double_t *yBins, Int_t nz, const Double_t *zBins)
virtual void	SetBins (Int_t nx, Double_t xmin, Double_t xmax)
virtual void	SetBins (Int_t nx, Double_t xmin, Double_t xmax, Int_t ny, Double_t ymin, Double_t ymax)
virtual void	SetBins (Int_t nx, Double_t xmin, Double_t xmax, Int_t ny, Double_t ymin, Double_t ymax, Int_t nz, Double_t zmin, Double_t zmax)
void	SetBinsLength (Int_t n=-1) override
	Set total number of bins including under/overflow Reallocate bin contents array.
void	SetBit (UInt_t f)
void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.
virtual void	SetBuffer (Int_t bufsize, Option_t *option="")
virtual UInt_t	SetCanExtend (UInt_t extendBitMask)
virtual void	SetCellContent (Int_t binx, Int_t biny, Double_t content)
virtual void	SetCellError (Int_t binx, Int_t biny, Double_t content)
virtual void	SetColors (Color_t linecolor=-1, Color_t markercolor=-1, Color_t fillcolor=-1)
virtual void	SetContent (const Double_t *content)
virtual void	SetContour (Int_t nlevels, const Double_t *levels=nullptr)
virtual void	SetContourLevel (Int_t level, Double_t value)
virtual void	SetDirectory (TDirectory *dir)
virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.
virtual void	SetEntries (Double_t n)
virtual void	SetError (const Double_t *error)
virtual void	SetFillAttributes ()
virtual void	SetFillColor (Color_t fcolor)
	Set the fill area color.
void	SetFillColor (TColorNumber)
virtual void	SetFillColorAlpha (Color_t fcolor, Float_t falpha)
virtual void	SetFillStyle (Style_t fstyle)
	Set the fill area style.
virtual void	SetHighlight (Bool_t set=kTRUE)
virtual void	SetLabelColor (Color_t color=1, Option_t *axis="X")
	Set axis labels color.
virtual void	SetLabelFont (Style_t font=62, Option_t *axis="X")
	Set font number used to draw axis labels.
virtual void	SetLabelOffset (Float_t offset=0.005, Option_t *axis="X")
	Set offset between axis and axis' labels.
virtual void	SetLabelSize (Float_t size=0.02, Option_t *axis="X")
	Set size of axis' labels.
virtual void	SetLineAttributes ()
virtual void	SetLineColor (Color_t lcolor)
	Set the line color.
void	SetLineColor (TColorNumber lcolor)
virtual void	SetLineColorAlpha (Color_t lcolor, Float_t lalpha)
virtual void	SetLineStyle (Style_t lstyle)
	Set the line style.
virtual void	SetLineWidth (Width_t lwidth)
	Set the line width.
virtual void	SetMarkerAttributes ()
virtual void	SetMarkerColor (Color_t mcolor=1)
	Set the marker color.
void	SetMarkerColor (TColorNumber lcolor)
virtual void	SetMarkerColorAlpha (Color_t mcolor, Float_t malpha)
virtual void	SetMarkerSize (Size_t msize=1)
	Set the marker size.
virtual void	SetMarkerStyle (Style_t mstyle=1)
	Set the marker style.
virtual void	SetMaximum (Double_t maximum=-1111)
virtual void	SetMinimum (Double_t minimum=-1111)
void	SetName (const char *name) override
	Set the name of the TNamed.
void	SetNameTitle (const char *name, const char *title) override
	Set all the TNamed parameters (name and title).
virtual void	SetNdivisions (Int_t n=510, Option_t *axis="X")
	Set the number of divisions to draw an axis.
virtual void	SetNormFactor (Double_t factor=1)
virtual void	SetOption (Option_t *option=" ")
virtual void	SetShowProjectionX (Int_t nbins=1)
	When the mouse is moved in a pad containing a 2-d view of this histogram a second canvas shows the projection along X corresponding to the mouse position along Y.
virtual void	SetShowProjectionXY (Int_t nbinsY=1, Int_t nbinsX=1)
	When the mouse is moved in a pad containing a 2-d view of this histogram two canvases show the projection along X and Y corresponding to the mouse position along Y and X, respectively.
virtual void	SetShowProjectionY (Int_t nbins=1)
	When the mouse is moved in a pad containing a 2-d view of this histogram a second canvas shows the projection along Y corresponding to the mouse position along X.
void	SetStatOverflows (EStatOverflows statOverflows)
	See GetStatOverflows for more information.
virtual void	SetStats (Bool_t stats=kTRUE)
virtual void	SetTickLength (Float_t length=0.02, Option_t *axis="X")
	Set the axis' tick marks length.
void	SetTitle (const char *title) override
	Set the title of the TNamed.
virtual void	SetTitleFont (Style_t font=62, Option_t *axis="X")
	Set the axis' title font.
virtual void	SetTitleOffset (Float_t offset=1, Option_t *axis="X")
	Specify a parameter offset to control the distance between the axis and the axis' title.
virtual void	SetTitleSize (Float_t size=0.02, Option_t *axis="X")
	Set the axis' title size.
virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.
virtual void	SetXTitle (const char *title)
virtual void	SetYTitle (const char *title)
virtual void	SetZTitle (const char *title)
virtual TH1 *	ShowBackground (Int_t niter=20, Option_t *option="same")
virtual TH1 *	ShowBackground2D (Int_t nIterX=20, Int_t nIterY=20, Option_t *option="same")
	This function calculates the background spectrum in this histogram.
Int_t	ShowPeaks (Double_t sigma=2, Option_t *option="", Double_t threshold=0.05) override
	Interface to TSpectrum2::Search the function finds peaks in this histogram where the width is > sigma and the peak maximum greater than threshold*maximum bin content of this.
std::size_t	size () const
virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject.
void	Smooth (Int_t ntimes=1, Option_t *option="") override
	Smooth bin contents of this 2-d histogram using kernel algorithms similar to the ones used in the raster graphics community.
void	Streamer (TBuffer &) override
	Stream an object of class TH2D.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
virtual void	Sumw2 (Bool_t flag=kTRUE)
virtual void	SysError (const char *method, const char *msgfmt,...) const
	Issue system error message.
Bool_t	TestBit (UInt_t f) const
Int_t	TestBits (UInt_t f) const
void	UseCurrentStyle () override
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
virtual void	Warning (const char *method, const char *msgfmt,...) const
	Issue warning message.
virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.
virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Static Public Member Functions
static void	AddDirectory (Bool_t add=kTRUE)
	Sets the flag controlling the automatic add of histograms in memory.
static Bool_t	AddDirectoryStatus ()
	Check whether TH1-derived classes should register themselves to the current gDirectory.
static Int_t	CheckConsistency (const TH1 *h1, const TH1 *h2)
	Check histogram compatibility.
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
static Int_t	FitOptionsMake (Option_t *option, Foption_t &Foption)
static Int_t	GetDefaultBufferSize ()
static Bool_t	GetDefaultSumw2 ()
static Longptr_t	GetDtorOnly ()
	Return destructor only flag.
static Width_t	GetMarkerLineWidth (Style_t style)
static Style_t	GetMarkerStyleBase (Style_t style)
static Bool_t	GetObjectStat ()
	Get status of object stat flag.
static TArray *	ReadArray (TBuffer &b, const TClass *clReq)
	Read TArray object from buffer.
static void	SavePrimitiveFunctions (std::ostream &out, const char *varname, TList *lst)
static void	SetDefaultBufferSize (Int_t bufsize=1000)
static void	SetDefaultSumw2 (Bool_t sumw2=kTRUE)
static void	SetDtorOnly (void *obj)
	Set destructor only flag.
static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.
static void	SmoothArray (Int_t NN, Double_t *XX, Int_t ntimes=1)
static void	StatOverflows (Bool_t flag=kTRUE)
static TH1 *	TransformHisto (TVirtualFFT *fft, TH1 *h_output, Option_t *option)
static void	WriteArray (TBuffer &b, const TArray *a)
	Write TArray object to buffer.

Public Attributes
Double_t *	fArray
Int_t	fN

Protected Types
enum	{ kOnlyPrepStep = (1ULL << (3)) }

Protected Member Functions
virtual Int_t	AutoP2FindLimits (Double_t min, Double_t max)
	Buffer-based estimate of the histogram range using the power of 2 algorithm.
Int_t	AxisChoice (Option_t *axis) const
	Choose an axis according to "axis".
Bool_t	BoundsOk (const char *where, Int_t at) const
virtual Int_t	BufferFill (Double_t x, Double_t y, Double_t w)
	accumulate arguments in buffer.
Int_t	BufferFill (Double_t, Double_t) override
	accumulate arguments in buffer.
virtual void	DoError (int level, const char *location, const char *fmt, va_list va) const
	Interface to ErrorHandler (protected).
virtual void	DoFillN (Int_t ntimes, const Double_t *x, const Double_t *w, Int_t stride=1)
virtual void	DoFitSlices (bool onX, TF1 *f1, Int_t firstbin, Int_t lastbin, Int_t cut, Option_t *option, TObjArray *arr)
virtual Double_t	DoIntegral (Int_t ix1, Int_t ix2, Int_t iy1, Int_t iy2, Int_t iz1, Int_t iz2, Double_t &err, Option_t *opt, Bool_t doerr=kFALSE) const
virtual TProfile *	DoProfile (bool onX, const char *name, Int_t firstbin, Int_t lastbin, Option_t *option) const
virtual TH1D *	DoProjection (bool onX, const char *name, Int_t firstbin, Int_t lastbin, Option_t *option) const
	Internal (protected) method for performing projection on the X or Y axis called by ProjectionX or ProjectionY.
virtual TH1D *	DoQuantiles (bool onX, const char *name, Double_t prob) const
	Implementation of quantiles for x or y.
Int_t	Fill (const char *, Double_t) override
Int_t	Fill (Double_t) override
	Invalid Fill method.
virtual Bool_t	FindNewAxisLimits (const TAxis *axis, const Double_t point, Double_t &newMin, Double_t &newMax)
UInt_t	GetAxisLabelStatus () const
virtual Double_t	GetBinErrorSqUnchecked (Int_t bin) const
Bool_t	GetStatOverflowsBehaviour () const
Double_t	Interpolate (Double_t x) const override
	illegal for a TH2
Bool_t	IsEmpty () const
int	LoggedInconsistency (const char *name, const TH1 *h1, const TH1 *h2, bool useMerge=false) const
void	MakeZombie ()
Bool_t	OutOfBoundsError (const char *where, Int_t i) const
	Generate an out-of-bounds error. Always returns false.
TString	ProvideSaveName (Option_t *option, Bool_t testfdir=kFALSE)
Double_t	RetrieveBinContent (Int_t bin) const override
	Raw retrieval of bin content on internal data structure see convention for numbering bins in TH1::GetBin.
virtual void	SavePrimitiveHelp (std::ostream &out, const char *hname, Option_t *option="")
void	SavePrimitiveNameTitle (std::ostream &out, const char *variable_name)
	Save object name and title into the output stream "out".
void	UpdateBinContent (Int_t bin, Double_t content) override
	Raw update of bin content on internal data structure see convention for numbering bins in TH1::GetBin.

Static Protected Member Functions
static Int_t	AutoP2GetBins (Int_t n)
	Auxiliary function to get the next power of 2 integer value larger then n.
static Double_t	AutoP2GetPower2 (Double_t x, Bool_t next=kTRUE)
	Auxiliary function to get the power of 2 next (larger) or previous (smaller) a given x.
static bool	CheckAxisLimits (const TAxis *a1, const TAxis *a2)
	Check that the axis limits of the histograms are the same.
static bool	CheckBinLabels (const TAxis *a1, const TAxis *a2)
	Check that axis have same labels.
static bool	CheckBinLimits (const TAxis *a1, const TAxis *a2)
	Check bin limits.
static bool	CheckConsistentSubAxes (const TAxis *a1, Int_t firstBin1, Int_t lastBin1, const TAxis *a2, Int_t firstBin2=0, Int_t lastBin2=0)
	Check that two sub axis are the same.
static bool	CheckEqualAxes (const TAxis *a1, const TAxis *a2)
	Check that the axis are the same.
static Bool_t	RecomputeAxisLimits (TAxis &destAxis, const TAxis &anAxis)
static Bool_t	SameLimitsAndNBins (const TAxis &axis1, const TAxis &axis2)
static void	SavePrimitiveConstructor (std::ostream &out, TClass *cl, const char *variable_name, const char *constructor_agrs="", Bool_t empty_line=kTRUE)
	Save object constructor in the output stream "out".
static void	SavePrimitiveDraw (std::ostream &out, const char *variable_name, Option_t *option=nullptr)
	Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.
static TString	SavePrimitiveVector (std::ostream &out, const char *prefix, Int_t len, Double_t *arr, Int_t flag=0)
	Save array in the output stream "out" as vector.

Protected Attributes
Short_t	fBarOffset
	(1000*offset) for bar charts or legos
Short_t	fBarWidth
	(1000*width) for bar charts or legos
EBinErrorOpt	fBinStatErrOpt
	Option for bin statistical errors.
Double_t *	fBuffer
	[fBufferSize] entry buffer
Int_t	fBufferSize
	fBuffer size
TArrayD	fContour
	Array to display contour levels.
Int_t	fDimension
	! Histogram dimension (1, 2 or 3 dim)
TDirectory *	fDirectory
	! Pointer to directory holding this histogram
Double_t	fEntries
	Number of entries.
Color_t	fFillColor
	Fill area color.
Style_t	fFillStyle
	Fill area style.
TList *	fFunctions
	->Pointer to list of functions (fits and user)
Double_t *	fIntegral
	! Integral of bins used by GetRandom
Color_t	fLineColor
	Line color.
Style_t	fLineStyle
	Line style.
Width_t	fLineWidth
	Line width.
Color_t	fMarkerColor
	Marker color.
Size_t	fMarkerSize
	Marker size.
Style_t	fMarkerStyle
	Marker style.
Double_t	fMaximum
	Maximum value for plotting.
Double_t	fMinimum
	Minimum value for plotting.
TString	fName
Int_t	fNcells
	Number of bins(1D), cells (2D) +U/Overflows.
Double_t	fNormFactor
	Normalization factor.
TString	fOption
	Histogram options.
TVirtualHistPainter *	fPainter
	! Pointer to histogram painter
Double_t	fScalefactor
	Scale factor.
EStatOverflows	fStatOverflows
	Per object flag to use under/overflows in statistics.
TArrayD	fSumw2
	Array of sum of squares of weights.
TString	fTitle
Double_t	fTsumw
	Total Sum of weights.
Double_t	fTsumw2
	Total Sum of squares of weights.
Double_t	fTsumwx
	Total Sum of weight*X.
Double_t	fTsumwx2
	Total Sum of weight*X*X.
Double_t	fTsumwxy
	Total Sum of weight*X*Y.
Double_t	fTsumwy
	Total Sum of weight*Y.
Double_t	fTsumwy2
	Total Sum of weight*Y*Y.
TAxis	fXaxis
	X axis descriptor.
TAxis	fYaxis
	Y axis descriptor.
TAxis	fZaxis
	Z axis descriptor.

Static Protected Attributes
static Bool_t	fgAddDirectory = kTRUE
	! Flag to add histograms to the directory
static Int_t	fgBufferSize = 1000
	! Default buffer size for automatic histograms
static Bool_t	fgDefaultSumw2 = kFALSE
	! Flag to call TH1::Sumw2 automatically at histogram creation time
static Bool_t	fgStatOverflows = kFALSE
	! Flag to use under/overflows in statistics

Private Member Functions
void	Build ()
	Creates histogram basic data structure.
virtual Double_t	Integral (Int_t binx1, Int_t binx2, Option_t *option="") const
virtual Double_t	IntegralAndError (Int_t binx1, Int_t binx2, Double_t &err, Option_t *option="") const
template<typename ValueType>
void	SetSliceContent (const std::vector< Double_t > &values, const std::vector< std::pair< Int_t, Int_t > > &sliceEdges, ValueType *dataArray)
	Sets the content of a slice of bins in a histogram.
template<typename ValueType>
void	SliceHistoInPlace (std::vector< Int_t > &args, ValueType *&dataArray, Int_t &fN)
	Slices a histogram in place based on the specified bin ranges for each dimension.

Static Private Member Functions
static void	AddToTObjectTable (TObject *)
	Private helper function which will dispatch to TObjectTable::AddObj.

Private Attributes
UInt_t	fBits
	bit field status word
UInt_t	fUniqueID
	object unique identifier

Static Private Attributes
static Longptr_t	fgDtorOnly = 0
	object for which to call dtor only (i.e. no delete)
static Bool_t	fgObjectStat = kTRUE
	if true keep track of objects in TObjectTable

Friends
TH2D	operator* (Float_t c1, TH2D const &h1)
	Operator *.
TH2D	operator* (TH2D const &h1, Float_t c1)
TH2D	operator* (TH2D const &h1, TH2D const &h2)
	Operator *.
TH2D	operator+ (TH2D const &h1, TH2D const &h2)
	Operator +.
TH2D	operator- (TH2D const &h1, TH2D const &h2)
	Operator -.
TH2D	operator/ (TH2D const &h1, TH2D const &h2)
	Operator /.

Inheritance diagram for TH2D:

Member Enumeration Documentation

anonymous enum

anonymous enum

inherited

Enumeration specifying which axes can be extended.

Enumerator
kNoAxis	NOTE: Must always be 0 !!!
kXaxis
kYaxis
kZaxis
kAllAxes

Definition at line 121 of file TH1.h.

anonymous enum

anonymous enum

protectedinherited

Enumerator

kOnlyPrepStep

Used to request that the class specific implementation of TObject::Write just prepare the objects to be ready to be written but do not actually write them into the TBuffer. This is just for example by TBufferMerger to request that the TTree inside the file calls TTree::FlushBaskets (outside of the merging lock) and TBufferMerger will later ask for the write (inside the merging lock). To take advantage of this feature the class needs to overload TObject::Write and use this enum value accordingly. (See TTree::Write and TObject::Write) Do not use, this feature will be migrate to the Merge function (See TClass and TTree::Merge)

Definition at line 106 of file TObject.h.

anonymous enum

anonymous enum

inherited

Enumerator
kSingleKey	write collection with single key
kOverwrite	overwrite existing object with same name
kWriteDelete	write object, then delete previous key with same name

Definition at line 99 of file TObject.h.

anonymous enum

anonymous enum

inherited

Size of statistics data (size of array used in GetStats()/ PutStats ).

• s[0] = sumw s[1] = sumw2
• s[2] = sumwx s[3] = sumwx2
• s[4] = sumwy s[5] = sumwy2 s[6] = sumwxy
• s[7] = sumwz s[8] = sumwz2 s[9] = sumwxz s[10] = sumwyz
• s[11] = sumwt s[12] = sumwt2 (11 and 12 used only by TProfile3D)

Enumerator
kNstat	Size of statistics data (up to TProfile3D).

Definition at line 421 of file TH1.h.

anonymous enum

anonymous enum

inherited

Enumerator
kIsOnHeap	object is on heap
kNotDeleted	object has not been deleted
kZombie	object ctor failed
kInconsistent	class overload Hash but does call RecursiveRemove in destructor
kBitMask

Definition at line 89 of file TObject.h.

EBinErrorOpt

enum TH1::EBinErrorOpt

inherited

Enumeration specifying type of statistics for bin errors.

Enumerator
kNormal	Errors with Normal (Wald) approximation: errorUp=errorLow= sqrt(N).
kPoisson	Errors from Poisson interval at 68.3% (1 sigma).
kPoisson2	Errors from Poisson interval at 95% CL (~ 2 sigma).

Definition at line 114 of file TH1.h.

EDeprecatedStatusBits

enum TObject::EDeprecatedStatusBits

inherited

Enumerator
kObjInCanvas	for backward compatibility only, use kMustCleanup

Definition at line 84 of file TObject.h.

EInconsistencyBits

enum TH1::EInconsistencyBits

inherited

Enumeration specifying inconsistencies between two histograms, in increasing severity.

Enumerator
kFullyConsistent
kDifferentLabels
kDifferentBinLimits
kDifferentAxisLimits
kDifferentNumberOfBins
kDifferentDimensions

Definition at line 138 of file TH1.h.

EStatOverflows

enum TH1::EStatOverflows

inherited

Enumeration specifying the way to treat statoverflow.

Enumerator
kIgnore	Override global flag ignoring the overflows.
kConsider	Override global flag considering the overflows.
kNeutral	Adapt to the global flag.

Definition at line 130 of file TH1.h.

EStatusBits

enum TH1::EStatusBits

inherited

TH1 status bits.

Enumerator
kNoStats	Don't draw stats box.
kUserContour	User specified contour levels.
kLogX	X-axis in log scale.
kIsZoomed	Bit set when zooming on Y axis.
kNoTitle	Don't draw the histogram title.
kIsAverage	Bin contents are average (used by Add).
kIsNotW	Histogram is forced to be not weighted even when the histogram is filled with weighted.
kAutoBinPTwo	different than 1. Use Power(2)-based algorithm for autobinning
kIsHighlight	bit set if histo is highlight

Definition at line 402 of file TH1.h.

Constructor & Destructor Documentation

TH2D() [1/8]

TH2D::TH2D

(

)

Constructor.

Definition at line 4101 of file TH2.cxx.

TH2D() [2/8]

TH2D::TH2D	(	const char *	name,
		const char *	title,
		Int_t	nbinsx,
		Double_t	xlow,
		Double_t	xup,
		Int_t	nbinsy,
		Double_t	ylow,
		Double_t	yup )

Constructor (see TH2::TH2 for explanation of parameters).

Definition at line 4120 of file TH2.cxx.

TH2D() [3/8]

TH2D::TH2D	(	const char *	name,
		const char *	title,
		Int_t	nbinsx,
		const Double_t *	xbins,
		Int_t	nbinsy,
		Double_t	ylow,
		Double_t	yup )

Constructor (see TH2::TH2 for explanation of parameters).

Definition at line 4135 of file TH2.cxx.

TH2D() [4/8]

TH2D::TH2D	(	const char *	name,
		const char *	title,
		Int_t	nbinsx,
		Double_t	xlow,
		Double_t	xup,
		Int_t	nbinsy,
		const Double_t *	ybins )

Constructor (see TH2::TH2 for explanation of parameters).

Definition at line 4148 of file TH2.cxx.

TH2D() [5/8]

TH2D::TH2D	(	const char *	name,
		const char *	title,
		Int_t	nbinsx,
		const Double_t *	xbins,
		Int_t	nbinsy,
		const Double_t *	ybins )

Constructor (see TH2::TH2 for explanation of parameters).

Definition at line 4161 of file TH2.cxx.

TH2D() [6/8]

TH2D::TH2D	(	const char *	name,
		const char *	title,
		Int_t	nbinsx,
		const Float_t *	xbins,
		Int_t	nbinsy,
		const Float_t *	ybins )

Constructor (see TH2::TH2 for explanation of parameters).

Definition at line 4174 of file TH2.cxx.

TH2D() [7/8]

TH2D::TH2D

(

const TMatrixDBase &

m

)

Constructor Construct a 2-D histogram from a TMatrixDBase.

Definition at line 4187 of file TH2.cxx.

TH2D() [8/8]

TH2D::TH2D

(

const TH2D &

h2d

)

Copy constructor.

The list of functions is not copied. (Use Clone() if needed)

Definition at line 4208 of file TH2.cxx.

~TH2D()

TH2D::~TH2D ( )

override

Destructor.

Definition at line 4111 of file TH2.cxx.

Member Function Documentation

AbstractMethod()

void TObject::AbstractMethod ( const char * method ) const

inherited

Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it.

In other word, this method acts as a "runtime purely virtual" warning instead of a "compiler purely virtual" error.

Warning

This interface is a legacy function that is no longer recommended to be used by new development code.

Note

The name "AbstractMethod" does not imply that it's an abstract method in the strict C++ sense.

Definition at line 1149 of file TObject.cxx.

Add() [1/3]

Bool_t TH1::Add ( const TH1 * h1, const TH1 * h2, Double_t c1 = 1, Double_t c2 = 1 )

virtualinherited

Replace contents of this histogram by the addition of h1 and h2.

this = c1*h1 + c2*h2 if errors are defined (see TH1::Sumw2), errors are also recalculated

Note that if h1 or h2 have Sumw2 set, Sumw2 is automatically called for this if not already set.

Note also that adding histogram with labels is not supported, histogram will be added merging them by bin number independently of the labels. For adding histogram ith labels one should use TH1::Merge

SPECIAL CASE (Average/Efficiency histograms) For histograms representing averages or efficiencies, one should compute the average of the two histograms and not the sum. One can mark a histogram to be an average histogram by setting its bit kIsAverage with myhist.SetBit(TH1::kIsAverage); Note that the two histograms must have their kIsAverage bit set

IMPORTANT NOTE: If you intend to use the errors of this histogram later you should call Sumw2 before making this operation. This is particularly important if you fit the histogram after TH1::Add

IMPORTANT NOTE2: You should be careful about the statistics of the returned histogram, whose statistics may be binned or unbinned, depending on whether c1 is negative, whether TAxis::kAxisRange is true, and whether TH1::ResetStats has been called on either this or h1. See TH1::GetStats.

ANOTHER SPECIAL CASE : h1 = h2 and c2 < 0 do a scaling this = c1 * h1 / (bin Volume)

The function returns kFALSE if the Add operation failed

Reimplemented in TH2Poly, TProfile2D, TProfile3D, and TProfile.

Definition at line 1124 of file TH1.cxx.

Add() [2/3]

Bool_t TH1::Add ( const TH1 * h1, Double_t c1 = 1 )

virtualinherited

Performs the operation: this = this + c1*h1 If errors are defined (see TH1::Sumw2), errors are also recalculated.

Note that if h1 has Sumw2 set, Sumw2 is automatically called for this if not already set.

Note also that adding histogram with labels is not supported, histogram will be added merging them by bin number independently of the labels. For adding histogram with labels one should use TH1::Merge

SPECIAL CASE (Average/Efficiency histograms) For histograms representing averages or efficiencies, one should compute the average of the two histograms and not the sum. One can mark a histogram to be an average histogram by setting its bit kIsAverage with myhist.SetBit(TH1::kIsAverage); Note that the two histograms must have their kIsAverage bit set

IMPORTANT NOTE1: If you intend to use the errors of this histogram later you should call Sumw2 before making this operation. This is particularly important if you fit the histogram after TH1::Add

IMPORTANT NOTE2: if h1 has a normalisation factor, the normalisation factor is used , ie this = this + c1*factor*h1 Use the other TH1::Add function if you do not want this feature

IMPORTANT NOTE3: You should be careful about the statistics of the returned histogram, whose statistics may be binned or unbinned, depending on whether c1 is negative, whether TAxis::kAxisRange is true, and whether TH1::ResetStats has been called on either this or h1. See TH1::GetStats.

The function return kFALSE if the Add operation failed

Reimplemented in TH2Poly, TProfile2D, TProfile3D, and TProfile.

Definition at line 964 of file TH1.cxx.

Add() [3/3]

Bool_t TH1::Add ( TF1 * f1, Double_t c1 = 1, Option_t * option = "" )

virtualinherited

Performs the operation: this = this + c1*f1 if errors are defined (see TH1::Sumw2), errors are also recalculated.

By default, the function is computed at the centre of the bin. if option "I" is specified (1-d histogram only), the integral of the function in each bin is used instead of the value of the function at the centre of the bin.

Only bins inside the function range are recomputed.

IMPORTANT NOTE: If you intend to use the errors of this histogram later you should call Sumw2 before making this operation. This is particularly important if you fit the histogram after TH1::Add

The function return kFALSE if the Add operation failed

Reimplemented in TH2Poly, TProfile2D, TProfile3D, and TProfile.

Definition at line 836 of file TH1.cxx.

AddAt()

void TArrayD::AddAt ( Double_t c, Int_t i )

inherited

Set the double c value at position i in the array.

Check for out of bounds. Warning: the name of the method is misleading, it actually overwrites the position i.

Definition at line 93 of file TArrayD.cxx.

AddBinContent() [1/4]

void TH2D::AddBinContent ( Int_t bin )

inlineoverridevirtual

Increment bin content by 1.

Passing an out-of-range bin leads to undefined behavior

Reimplemented from TH2.

Definition at line 420 of file TH2.h.

AddBinContent() [2/4]

void TH2D::AddBinContent ( Int_t bin, Double_t w )

inlineoverridevirtual

Increment bin content by a weight w Passing an out-of-range bin leads to undefined behavior.

Reimplemented from TH2.

Definition at line 423 of file TH2.h.

AddBinContent() [3/4]

void TH2::AddBinContent ( Int_t binx, Int_t biny )

inline

Increment 2D bin content by 1.

Passing an out-of-range bin leads to undefined behavior

Definition at line 76 of file TH2.h.

AddBinContent() [4/4]

void TH2::AddBinContent ( Int_t binx, Int_t biny, Double_t w )

inline

Increment 2D bin content by a weight w.

Passing an out-of-range bin leads to undefined behavior

Definition at line 79 of file TH2.h.

AddDirectory()

void TH1::AddDirectory ( Bool_t add = kTRUE )

staticinherited

Sets the flag controlling the automatic add of histograms in memory.

By default (fAddDirectory = kTRUE), histograms are automatically added to the current directory (gDirectory). Note that one histogram can be removed from its support directory by calling h->SetDirectory(nullptr) or h->SetDirectory(dir) to add it to the list of objects in the directory dir.

This is a static function. To call it, use TH1::AddDirectory

Deprecated

Use ROOT::Experimental::ObjectAutoRegistrationEnabled(). It can be set using an entry in rootrc or an environment variable, is initialised in a thread-safe manner and covers more cases.

Definition at line 1309 of file TH1.cxx.

AddDirectoryStatus()

Bool_t TH1::AddDirectoryStatus ( )

staticinherited

Check whether TH1-derived classes should register themselves to the current gDirectory.

Note

Even if this returns true, the state of ROOT::Experimental::ObjectAutoRegistrationEnabled() might prevent the registration of histograms, since it has higher precedence.

Definition at line 764 of file TH1.cxx.

AddToTObjectTable()

void TObject::AddToTObjectTable ( TObject * op )

staticprivateinherited

Private helper function which will dispatch to TObjectTable::AddObj.

Included here to avoid circular dependency between header files.

Definition at line 195 of file TObject.cxx.

Adopt()

void TArrayD::Adopt ( Int_t n, Double_t * arr )

inherited

Adopt array arr into TArrayD, i.e.

don't copy arr but use it directly in TArrayD. User may not delete arr, TArrayD dtor will do it.

Definition at line 80 of file TArrayD.cxx.

AndersonDarlingTest() [1/2]

virtual Double_t TH1::AndersonDarlingTest ( const TH1 * h2, Double_t & advalue ) const

virtualinherited

AndersonDarlingTest() [2/2]

virtual Double_t TH1::AndersonDarlingTest ( const TH1 * h2, Option_t * option = "" ) const

virtualinherited

AppendPad()

void TObject::AppendPad ( Option_t * option = "" )

virtualinherited

Append graphics object to current pad.

In case no current pad is set yet, create a default canvas with the name "c1".

Definition at line 204 of file TObject.cxx.

At()

Double_t TArrayD::At ( Int_t i ) const

inlineinherited

Definition at line 79 of file TArrayD.h.

AutoP2FindLimits()

Int_t TH1::AutoP2FindLimits ( Double_t xmi, Double_t xma )

protectedvirtualinherited

Buffer-based estimate of the histogram range using the power of 2 algorithm.

Used by the autobin power of 2 algorithm.

Works on arguments (min and max from fBuffer) and internal inputs: fXmin, fXmax, NBinsX (from fXaxis), ... Result save internally in fXaxis.

Overloaded by TH2 and TH3.

Return -1 if internal inputs are inconsistent, 0 otherwise.

Definition at line 1358 of file TH1.cxx.

AutoP2GetBins()

Int_t TH1::AutoP2GetBins ( Int_t n )

inlinestaticprotectedinherited

Auxiliary function to get the next power of 2 integer value larger then n.

Used by the autobin power of 2 algorithm

Definition at line 1336 of file TH1.cxx.

AutoP2GetPower2()

Double_t TH1::AutoP2GetPower2 ( Double_t x, Bool_t next = kTRUE )

inlinestaticprotectedinherited

Auxiliary function to get the power of 2 next (larger) or previous (smaller) a given x.

next = kTRUE : next larger next = kFALSE : previous smaller

Used by the autobin power of 2 algorithm

Definition at line 1323 of file TH1.cxx.

AxisChoice()

Int_t TH1::AxisChoice ( Option_t * axis ) const

protectedinherited

Choose an axis according to "axis".

Definition at line 14 of file Haxis.cxx.

BoundsOk()

Bool_t TArray::BoundsOk ( const char * where, Int_t at ) const

inlineprotectedinherited

Definition at line 79 of file TArray.h.

Browse()

void TH1::Browse ( TBrowser * b )

overridevirtualinherited

Browse the Histogram object.

Reimplemented from TObject.

Definition at line 772 of file TH1.cxx.

BufferEmpty()

Int_t TH2::BufferEmpty ( Int_t action = 0 )

overridevirtualinherited

Fill histogram with all entries in the buffer.

• action = -1 histogram is reset and refilled from the buffer (called by THistPainter::Paint)
• action = 0 histogram is filled from the buffer
• action = 1 histogram is filled and buffer is deleted The buffer is automatically deleted when the number of entries in the buffer is greater than the number of entries in the histogram

Reimplemented from TH1.

Reimplemented in TProfile2D.

Definition at line 241 of file TH2.cxx.

BufferFill() [1/2]

Int_t TH2::BufferFill ( Double_t x, Double_t y, Double_t w )

protectedvirtualinherited

accumulate arguments in buffer.

When buffer is full, empty the buffer

fBuffer[0] = number of entries in buffer
fBuffer[1] = w of first entry
fBuffer[2] = x of first entry
fBuffer[3] = y of first entry

Reimplemented in TProfile2D.

Definition at line 322 of file TH2.cxx.

BufferFill() [2/2]

Int_t TH2::BufferFill ( Double_t x, Double_t w )

inlineoverrideprotectedvirtualinherited

accumulate arguments in buffer.

When buffer is full, empty the buffer

• fBuffer[0] = number of entries in buffer
• fBuffer[1] = w of first entry
• fBuffer[2] = x of first entry

Reimplemented from TH1.

Reimplemented in TProfile2D.

Definition at line 56 of file TH2.h.

Build()

void TH1::Build ( )

privateinherited

Creates histogram basic data structure.

Definition at line 781 of file TH1.cxx.

CanExtendAllAxes()

virtual Bool_t TH1::CanExtendAllAxes ( ) const

virtualinherited

CheckAxisLimits()

bool TH1::CheckAxisLimits ( const TAxis * a1, const TAxis * a2 )

staticprotectedinherited

Check that the axis limits of the histograms are the same.

If a first and last bin is passed the axis is compared between the given range

Definition at line 1612 of file TH1.cxx.

CheckBinLabels()

bool TH1::CheckBinLabels ( const TAxis * a1, const TAxis * a2 )

staticprotectedinherited

Check that axis have same labels.

Definition at line 1583 of file TH1.cxx.

CheckBinLimits()

bool TH1::CheckBinLimits ( const TAxis * a1, const TAxis * a2 )

staticprotectedinherited

Check bin limits.

Definition at line 1556 of file TH1.cxx.

CheckConsistency()

Int_t TH1::CheckConsistency ( const TH1 * h1, const TH1 * h2 )

staticinherited

Check histogram compatibility.

The returned integer is part of EInconsistencyBits The value 0 means that the histograms are compatible

Definition at line 1694 of file TH1.cxx.

CheckConsistentSubAxes()

bool TH1::CheckConsistentSubAxes ( const TAxis * a1, Int_t firstBin1, Int_t lastBin1, const TAxis * a2, Int_t firstBin2 = 0, Int_t lastBin2 = 0 )

staticprotectedinherited

Check that two sub axis are the same.

The limits are defined by first bin and last bin N.B. no check is done in this case for variable bins

Definition at line 1655 of file TH1.cxx.

CheckedHash()

ULong_t TObject::CheckedHash ( )

inlineinherited

Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

The intent is for this routine to be called instead of directly calling the function Hash during "insert" operations. See TObject::HasInconsistenTObjectHash();

(*) The setup is consistent when all classes in the class hierarchy that overload TObject::Hash do call ROOT::CallRecursiveRemoveIfNeeded in their destructor. i.e. it is safe to call the Hash virtual function during the RecursiveRemove operation.

Definition at line 332 of file TObject.h.

CheckEqualAxes()

bool TH1::CheckEqualAxes ( const TAxis * a1, const TAxis * a2 )

staticprotectedinherited

Check that the axis are the same.

Definition at line 1626 of file TH1.cxx.

Chi2Test()

virtual Double_t TH1::Chi2Test ( const TH1 * h2, Option_t * option = "UU", Double_t * res = nullptr ) const

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

Chi2TestX()

virtual Double_t TH1::Chi2TestX ( const TH1 * h2, Double_t & chi2, Int_t & ndf, Int_t & igood, Option_t * option = "UU", Double_t * res = nullptr ) const

virtualinherited

Chisquare()

virtual Double_t TH1::Chisquare ( TF1 * f1, Option_t * option = "" ) const

virtualinherited

Class()

TClass * TH2D::Class ( )

static

Returns

TClass describing this class

Class_Name()

const char * TH2D::Class_Name ( )

static

Returns

Name of this class

Class_Version()

constexpr Version_t TH2D::Class_Version ( )

inlinestaticconstexpr

Returns

Version of this class

Definition at line 442 of file TH2.h.

ClassName()

const char * TObject::ClassName ( ) const

virtualinherited

Returns name of class to which the object belongs.

Definition at line 227 of file TObject.cxx.

Clear()

void TNamed::Clear ( Option_t * option = "" )

overridevirtualinherited

Set name and title to empty strings ("").

Reimplemented from TObject.

Reimplemented in TPrincipal, TProcessID, TStreamerInfo, TTask, TVirtualFitter, and TVirtualStreamerInfo.

Definition at line 63 of file TNamed.cxx.

ClearUnderflowAndOverflow()

virtual void TH1::ClearUnderflowAndOverflow ( )

virtualinherited

Clone()

TObject * TH1::Clone ( const char * newname = "" ) const

overridevirtualinherited

Make a clone of an object using the Streamer facility.

If the object derives from TNamed, this function is called by TNamed::Clone. TNamed::Clone uses the optional argument to set a new name to the newly created object.

If the object class has a DirectoryAutoAdd function, it will be called at the end of the function with the parameter gDirectory. This usually means that the object will be appended to the current ROOT directory.

Reimplemented from TObject.

Compare()

Int_t TNamed::Compare ( const TObject * obj ) const

overridevirtualinherited

Compare two TNamed objects.

Returns 0 when equal, -1 when this is smaller and +1 when bigger (like strcmp).

Reimplemented from TObject.

Reimplemented in TStructNodeProperty.

Definition at line 84 of file TNamed.cxx.

ComputeIntegral()

virtual Double_t TH1::ComputeIntegral ( Bool_t onlyPositive = false, Option_t * option = "" )

virtualinherited

Reimplemented in TH2Poly.

Copy() [1/5]

void TArrayD::Copy ( TArrayD & array ) const

inlineinherited

Definition at line 42 of file TArrayD.h.

Copy() [2/5]

void TAttFill::Copy ( TAttFill & attfill ) const

inherited

Copy() [3/5]

void TAttLine::Copy ( TAttLine & attline ) const

inherited

Copy() [4/5]

void TAttMarker::Copy ( TAttMarker & attmarker ) const

inherited

Copy() [5/5]

void TH2D::Copy ( TObject & hnew ) const

overridevirtual

Copy.

Reimplemented from TH2.

Reimplemented in TProfile2D.

Definition at line 4218 of file TH2.cxx.

DeclFileName()

const char * TH2D::DeclFileName ( )

inlinestatic

Returns

Name of the file containing the class declaration

Definition at line 442 of file TH2.h.

Delete()

void TObject::Delete ( Option_t * option = "" )

virtualinherited

Delete this object.

Typically called as a command via the interpreter. Normally use "delete" operator when object has been allocated on the heap.

Reimplemented in RooLinkedList, TAxis, TBtree, TCanvas, TClonesArray, TCollection, TDirectory, TDirectoryFile, TExMap, TFile, TGFrame, TGItemContext, TGTextEdit, THashList, THashTable, TKey, TKeySQL, TKeyXML, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TMap, TMVA::Results, TObjArray, TObjectTable, TOrdCollection, TProtoClass, TQCommand, TRefArray, TSystemDirectory, TSystemFile, TThread, TTree, TTreeViewer, TViewPubDataMembers, and TViewPubFunctions.

Definition at line 268 of file TObject.cxx.

DirectoryAutoAdd()

virtual void TH1::DirectoryAutoAdd ( TDirectory * )

virtualinherited

DistancetoLine()

Int_t TAttLine::DistancetoLine ( Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2 )

inherited

DistancetoPrimitive()

Int_t TH1::DistancetoPrimitive ( Int_t px, Int_t py )

overridevirtualinherited

Computes distance from point (px,py) to the object.

This member function must be implemented for each graphics primitive. This default function returns a big number (999999).

Reimplemented from TObject.

Divide() [1/3]

virtual Bool_t TH1::Divide ( const TH1 * h1 )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

Divide() [2/3]

virtual Bool_t TH1::Divide ( const TH1 * h1, const TH1 * h2, Double_t c1 = 1, Double_t c2 = 1, Option_t * option = "" )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

Divide() [3/3]

virtual Bool_t TH1::Divide ( TF1 * f1, Double_t c1 = 1 )

virtualinherited

Reimplemented in TH2Poly, TProfile2D, TProfile3D, and TProfile.

DoError()

void TObject::DoError ( int level, const char * location, const char * fmt, va_list va ) const

protectedvirtualinherited

Interface to ErrorHandler (protected).

Reimplemented in TThread, and TTreeViewer.

Definition at line 1059 of file TObject.cxx.

DoFillN()

virtual void TH1::DoFillN ( Int_t ntimes, const Double_t * x, const Double_t * w, Int_t stride = 1 )

protectedvirtualinherited

DoFitSlices()

void TH2::DoFitSlices ( bool onX, TF1 * f1, Int_t firstbin, Int_t lastbin, Int_t cut, Option_t * option, TObjArray * arr )

protectedvirtualinherited

Definition at line 781 of file TH2.cxx.

DoIntegral()

virtual Double_t TH1::DoIntegral ( Int_t ix1, Int_t ix2, Int_t iy1, Int_t iy2, Int_t iz1, Int_t iz2, Double_t & err, Option_t * opt, Bool_t doerr = kFALSE ) const

protectedvirtualinherited

DoProfile()

TProfile * TH2::DoProfile ( bool onX, const char * name, Int_t firstbin, Int_t lastbin, Option_t * option ) const

protectedvirtualinherited

Reimplemented in TProfile2D.

Definition at line 1851 of file TH2.cxx.

DoProjection()

TH1D * TH2::DoProjection ( bool onX, const char * name, Int_t firstbin, Int_t lastbin, Option_t * option ) const

protectedvirtualinherited

Internal (protected) method for performing projection on the X or Y axis called by ProjectionX or ProjectionY.

The histograms created are added to gDirectory.

Definition at line 2147 of file TH2.cxx.

DoQuantiles()

TH1D * TH2::DoQuantiles ( bool onX, const char * name, Double_t prob ) const

protectedvirtualinherited

Implementation of quantiles for x or y.

Definition at line 2514 of file TH2.cxx.

Draw()

void TH1::Draw ( Option_t * option = "" )

overridevirtualinherited

Default Draw method for all objects.

Reimplemented from TObject.

DrawClass()

void TObject::DrawClass ( ) const

virtualinherited

Draw class inheritance tree of the class to which this object belongs.

If a class B inherits from a class A, description of B is drawn on the right side of description of A. Member functions overridden by B are shown in class A with a blue line crossing-out the corresponding member function. The following picture is the class inheritance tree of class TPaveLabel:

Reimplemented in TGFrame, TSystemDirectory, and TSystemFile.

Definition at line 308 of file TObject.cxx.

DrawClone()

TObject * TObject::DrawClone ( Option_t * option = "" ) const

virtualinherited

Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).

If pad was not selected - gPad will be used.

Note

For histograms, use the more specialised TH1::DrawCopy().

Reimplemented in TAxis, TCanvas, TGFrame, TSystemDirectory, and TSystemFile.

Definition at line 319 of file TObject.cxx.

DrawCopy()

virtual TH1 * TH1::DrawCopy ( Option_t * option = "", const char * name_postfix = "_copy" ) const

virtualinherited

DrawNormalized()

virtual TH1 * TH1::DrawNormalized ( Option_t * option = "", Double_t norm = 1 ) const

virtualinherited

DrawPanel()

virtual void TH1::DrawPanel ( )

virtualinherited

Dump()

void TObject::Dump ( ) const

virtualinherited

Dump contents of object on stdout.

Using the information in the object dictionary (class TClass) each data member is interpreted. If a data member is a pointer, the pointer value is printed

The following output is the Dump of a TArrow object:

fAngle                   0           Arrow opening angle (degrees)
fArrowSize               0.2         Arrow Size
fOption.*fData
fX1                      0.1         X of 1st point
fY1                      0.15        Y of 1st point
fX2                      0.67        X of 2nd point
fY2                      0.83        Y of 2nd point
fUniqueID                0           object unique identifier
fBits                    50331648    bit field status word
fLineColor               1           line color
fLineStyle               1           line style
fLineWidth               1           line width
fFillColor               19          fill area color
fFillStyle               1001        fill area style

Reimplemented in TClass, TCollection, TGFrame, TGPack, and TSystemFile.

Definition at line 367 of file TObject.cxx.

Error()

void TObject::Error ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue error message.

Use "location" to specify the method where the error occurred. Accepts standard printf formatting arguments.

Reimplemented in TFitResult.

Definition at line 1098 of file TObject.cxx.

Eval()

virtual void TH1::Eval ( TF1 * f1, Option_t * option = "" )

virtualinherited

Execute() [1/2]

void TObject::Execute ( const char * method, const char * params, Int_t * error = nullptr )

virtualinherited

Execute method on this object with the given parameter string, e.g.

"3.14,1,\"text\"".

Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.

Definition at line 378 of file TObject.cxx.

Execute() [2/2]

void TObject::Execute ( TMethod * method, TObjArray * params, Int_t * error = nullptr )

virtualinherited

Execute method on this object with parameters stored in the TObjArray.

The TObjArray should contain an argv vector like:

argv[0] ... argv[n] = the list of TObjString parameters

Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.

Definition at line 398 of file TObject.cxx.

ExecuteEvent()

void TH1::ExecuteEvent ( Int_t event, Int_t px, Int_t py )

overridevirtualinherited

Execute action corresponding to an event at (px,py).

This method must be overridden if an object can react to graphics events.

Reimplemented from TObject.

ExtendAxis()

virtual void TH1::ExtendAxis ( Double_t x, TAxis * axis )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

Fatal()

void TObject::Fatal ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue fatal error message.

Use "location" to specify the method where the fatal error occurred. Accepts standard printf formatting arguments.

Definition at line 1126 of file TObject.cxx.

FFT()

virtual TH1 * TH1::FFT ( TH1 * h_output, Option_t * option )

virtualinherited

Reimplemented in TH2Poly.

Fill() [1/7]

Int_t TH2::Fill ( const char * , Double_t  )

inlineoverrideprotectedvirtualinherited

Reimplemented from TH1.

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 58 of file TH2.h.

Fill() [2/7]

Int_t TH2::Fill ( const char * namex, const char * namey, Double_t w )

virtualinherited

Increment cell defined by namex,namey by a weight w.

• if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented.
• if x or/and y is equal to or greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
  • If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w^2 in the bin corresponding to namex,namey

The function returns the corresponding global bin number which has its content incremented by w

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 475 of file TH2.cxx.

Fill() [3/7]

Int_t TH2::Fill ( const char * namex, Double_t y, Double_t w )

virtualinherited

Increment cell defined by namex,y by a weight w.

• if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented.
• if x or/and y is equal to or greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
• If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w^2 in the bin corresponding to namex,y

The function returns the corresponding global bin number which has its content incremented by w

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 522 of file TH2.cxx.

Fill() [4/7]

Int_t TH2::Fill ( Double_t x, const char * namey, Double_t w )

virtualinherited

Increment cell defined by x,namey by a weight w.

• if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented.
• if x or/and y is equal to or greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
• If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w^2 in the bin corresponding to x,y.

The function returns the corresponding global bin number which has its content incremented by w

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 568 of file TH2.cxx.

Fill() [5/7]

Int_t TH2::Fill ( Double_t x, Double_t y )

overridevirtualinherited

Increment cell defined by x,y by 1.

• if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented.
• if x or/and y is equal to or greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
• If the storage of the sum of squares of weights has been triggered, via the function Sumw2, then the sum of the squares of weights is incremented by 1 in the cell corresponding to x,y.

The function returns the corresponding global bin number which has its content incremented by 1

Reimplemented from TH1.

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 385 of file TH2.cxx.

Fill() [6/7]

Int_t TH2::Fill ( Double_t x, Double_t y, Double_t w )

virtualinherited

Increment cell defined by x,y by a weight w.

• if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented.
• if x or/and y is equal to or greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
  • If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w^2 in the bin corresponding to x,y

The function returns the corresponding global bin number which has its content incremented by w

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 429 of file TH2.cxx.

Fill() [7/7]

Int_t TH2::Fill ( Double_t )

overrideprotectedvirtualinherited

Invalid Fill method.

Reimplemented from TH1.

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 363 of file TH2.cxx.

FillBuffer()

void TNamed::FillBuffer ( char *& buffer )

virtualinherited

Encode TNamed into output buffer.

Reimplemented in TDirectoryFile, TFile, TKey, TKeySQL, TKeyXML, TSQLFile, and TXMLFile.

Definition at line 103 of file TNamed.cxx.

FillN() [1/2]

void TH2::FillN ( Int_t ntimes, const Double_t * x, const Double_t * y, const Double_t * w, Int_t stride = 1 )

overridevirtualinherited

Fill a 2-D histogram with an array of values and weights.

• ntimes: number of entries in arrays x and w (array size must be ntimes*stride)
• x: array of x values to be histogrammed
• y: array of y values to be histogrammed
• w: array of weights
• stride: step size through arrays x, y and w
  • If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w[i]^2 in the bin corresponding to x[i],y[i].
  • If w is NULL each entry is assumed a weight=1

NB: function only valid for a TH2x object

Reimplemented from TH1.

Reimplemented in TH2Poly.

Definition at line 616 of file TH2.cxx.

FillN() [2/2]

void TH2::FillN ( Int_t , const Double_t * , const Double_t * , Int_t  )

inlineoverridevirtualinherited

Reimplemented from TH1.

Reimplemented in TH2Poly.

Definition at line 87 of file TH2.h.

FillRandom() [1/3]

void TH1::FillRandom ( const char * fname, Int_t ntimes = 5000, TRandom * rng = nullptr )

inherited

FillRandom() [2/3]

void TH2::FillRandom ( TF1 * function, Int_t ntimes = 5000, TRandom * rng = nullptr )

overridevirtualinherited

Fill histogram following distribution in function function.

Parameters

function	Function name used for filling the histogram
ntimes	: number of times the histogram is filled
rng	: (optional) Random number generator used to sample

The distribution contained in the function fname (TF2) is integrated over the channel contents. It is normalized to 1. Getting one random number implies:

• Generating a random number between 0 and 1 (say r1)
• Look in which bin in the normalized integral r1 corresponds to
• Fill histogram channel ntimes random numbers are generated

One can also call TF2::GetRandom2 to get a random variate from a function.

Reimplemented from TH1.

Definition at line 684 of file TH2.cxx.

FillRandom() [3/3]

void TH2::FillRandom ( TH1 * h, Int_t ntimes = 5000, TRandom * rng = nullptr )

overridevirtualinherited

Fill histogram following distribution in histogram h.

Parameters

h	: Histogram pointer used for sampling random number
ntimes	: number of times the histogram is filled
rng	: (optional) Random number generator used for sampling

The distribution contained in the histogram h (TH2) is integrated over the channel contents. It is normalized to 1. Getting one random number implies:

• Generating a random number between 0 and 1 (say r1)
• Look in which bin in the normalized integral r1 corresponds to
• Fill histogram channel ntimes random numbers are generated

Reimplemented from TH1.

Definition at line 760 of file TH2.cxx.

FindBin()

virtual Int_t TH1::FindBin ( Double_t x, Double_t y = 0, Double_t z = 0 )

virtualinherited

Reimplemented in TH2Poly.

FindFirstBinAbove()

virtual Int_t TH1::FindFirstBinAbove ( Double_t threshold = 0, Int_t axis = 1, Int_t firstBin = 1, Int_t lastBin = -1 ) const

virtualinherited

FindFixBin()

virtual Int_t TH1::FindFixBin ( Double_t x, Double_t y = 0, Double_t z = 0 ) const

virtualinherited

FindLastBinAbove()

virtual Int_t TH1::FindLastBinAbove ( Double_t threshold = 0, Int_t axis = 1, Int_t firstBin = 1, Int_t lastBin = -1 ) const

virtualinherited

FindNewAxisLimits()

virtual Bool_t TH1::FindNewAxisLimits ( const TAxis * axis, const Double_t point, Double_t & newMin, Double_t & newMax )

protectedvirtualinherited

FindObject() [1/2]

TObject * TH1::FindObject ( const char * name ) const

overridevirtualinherited

Must be redefined in derived classes.

This function is typically used with TCollections, but can also be used to find an object by name inside this object.

Reimplemented from TObject.

FindObject() [2/2]

TObject * TH1::FindObject ( const TObject * obj ) const

overridevirtualinherited

Must be redefined in derived classes.

This function is typically used with TCollections, but can also be used to find an object inside this object.

Reimplemented from TObject.

Fit() [1/2]

virtual TFitResultPtr TH1::Fit ( const char * formula, Option_t * option = "", Option_t * goption = "", Double_t xmin = 0, Double_t xmax = 0 )

virtualinherited

Fit() [2/2]

virtual TFitResultPtr TH1::Fit ( TF1 * f1, Option_t * option = "", Option_t * goption = "", Double_t xmin = 0, Double_t xmax = 0 )

virtualinherited

FitOptionsMake()

Int_t TH1::FitOptionsMake ( Option_t * option, Foption_t & Foption )

staticinherited

FitPanel()

virtual void TH1::FitPanel ( )

virtualinherited

FitSlicesX()

void TH2::FitSlicesX ( TF1 * f1 = nullptr, Int_t firstybin = 0, Int_t lastybin = -1, Int_t cut = 0, Option_t * option = "QNR", TObjArray * arr = nullptr )

virtualinherited

Project slices along X in case of a 2-D histogram, then fit each slice with function f1 and make a histogram for each fit parameter Only bins along Y between firstybin and lastybin are considered.

By default (firstybin == 0, lastybin == -1), all bins in y including over- and underflows are taken into account. If f1=0, a gaussian is assumed Before invoking this function, one can set a subrange to be fitted along X via f1->SetRange(xmin,xmax) The argument option (default="QNR") can be used to change the fit options.

• "Q" means Quiet mode
• "N" means do not show the result of the fit
• "R" means fit the function in the specified function range
• "G2" merge 2 consecutive bins along X
• "G3" merge 3 consecutive bins along X
• "G4" merge 4 consecutive bins along X
• "G5" merge 5 consecutive bins along X
• "S" sliding merge: merge n consecutive bins along X accordingly to what Gn is given. It makes sense when used together with a Gn option

The generated histograms are returned by adding them to arr, if arr is not NULL. arr's SetOwner() is called, to signal that it is the user's responsibility to delete the histograms, possibly by deleting the array.

TObjArray aSlices;
h2->FitSlicesX(func, 0, -1, 0, "QNR", &aSlices);

will already delete the histograms once aSlice goes out of scope. aSlices will contain the histogram for the i-th parameter of the fit function at aSlices[i]; aSlices[n] (n being the number of parameters) contains the chi2 distribution of the fits.

If arr is NULL, the generated histograms are added to the list of objects in the current directory. It is the user's responsibility to delete these histograms.

Example: Assume a 2-d histogram h2

Root > h2->FitSlicesX(); produces 4 TH1D histograms
       with h2_0 containing parameter 0(Constant) for a Gaus fit
                 of each bin in Y projected along X
       with h2_1 containing parameter 1(Mean) for a gaus fit
       with h2_2 containing parameter 2(StdDev)  for a gaus fit
       with h2_chi2 containing the chisquare/number of degrees of freedom for a gaus fit
 
Root > h2->FitSlicesX(0,15,22,10);
       same as above, but only for bins 15 to 22 along Y
       and only for bins in Y for which the corresponding projection
       along X has more than cut bins filled.

NOTE: To access the generated histograms in the current directory, do eg:

TH1D *h2_1 = (TH1D*)gDirectory->Get("h2_1");

Definition at line 985 of file TH2.cxx.

FitSlicesY()

void TH2::FitSlicesY ( TF1 * f1 = nullptr, Int_t firstxbin = 0, Int_t lastxbin = -1, Int_t cut = 0, Option_t * option = "QNR", TObjArray * arr = nullptr )

virtualinherited

Project slices along Y in case of a 2-D histogram, then fit each slice with function f1 and make a histogram for each fit parameter Only bins along X between firstxbin and lastxbin are considered.

By default (firstxbin == 0, lastxbin == -1), all bins in x including over- and underflows are taken into account. If f1=0, a gaussian is assumed Before invoking this function, one can set a subrange to be fitted along Y via f1->SetRange(ymin,ymax) The argument option (default="QNR") can be used to change the fit options.

• "Q" means Quiet mode
• "N" means do not show the result of the fit
• "R" means fit the function in the specified function range
• "G2" merge 2 consecutive bins along Y
• "G3" merge 3 consecutive bins along Y
• "G4" merge 4 consecutive bins along Y
• "G5" merge 5 consecutive bins along Y
• "S" sliding merge: merge n consecutive bins along Y accordingly to what Gn is given. It makes sense when used together with a Gn option

The generated histograms are returned by adding them to arr, if arr is not NULL. arr's SetOwner() is called, to signal that it is the user's responsibility to delete the histograms, possibly by deleting the array.

TObjArray aSlices;
h2->FitSlicesY(func, 0, -1, 0, "QNR", &aSlices);

will already delete the histograms once aSlice goes out of scope. aSlices will contain the histogram for the i-th parameter of the fit function at aSlices[i]; aSlices[n] (n being the number of parameters) contains the chi2 distribution of the fits.

If arr is NULL, the generated histograms are added to the list of objects in the current directory. It is the user's responsibility to delete these histograms.

Example: Assume a 2-d histogram h2

Root > h2->FitSlicesY(); produces 4 TH1D histograms
       with h2_0 containing parameter 0(Constant) for a Gaus fit
                 of each bin in X projected along Y
       with h2_1 containing parameter 1(Mean) for a gaus fit
       with h2_2 containing parameter 2(StdDev)  for a gaus fit
       with h2_chi2 containing the chisquare/number of degrees of freedom for a gaus fit
 
Root > h2->FitSlicesY(0,15,22,10);
       same as above, but only for bins 15 to 22 along X
       and only for bins in X for which the corresponding projection
       along Y has more than cut bins filled.

NOTE: To access the generated histograms in the current directory, do eg:

TH1D *h2_1 = (TH1D*)gDirectory->Get("h2_1");

A complete example of this function is given in tutorial:fitslicesy.C.

Definition at line 1050 of file TH2.cxx.

GetArray() [1/2]

Double_t * TArrayD::GetArray ( )

inlineinherited

Definition at line 44 of file TArrayD.h.

GetArray() [2/2]

const Double_t * TArrayD::GetArray ( ) const

inlineinherited

Definition at line 43 of file TArrayD.h.

GetAsymmetry()

TH1 * TH1::GetAsymmetry ( TH1 * h2, Double_t c2 = 1, Double_t dc2 = 0 )

inherited

GetAt()

Double_t TArrayD::GetAt ( Int_t i ) const

inlineoverridevirtualinherited

Implements TArray.

Definition at line 45 of file TArrayD.h.

GetAxisColor()

Color_t TH1::GetAxisColor ( Option_t * axis = "X" ) const

virtualinherited

Return the number of divisions for "axis".

Definition at line 40 of file Haxis.cxx.

GetAxisLabelStatus()

UInt_t TH1::GetAxisLabelStatus ( ) const

protectedinherited

GetBarOffset()

virtual Float_t TH1::GetBarOffset ( ) const

inlinevirtualinherited

Definition at line 500 of file TH1.h.

GetBarWidth()

virtual Float_t TH1::GetBarWidth ( ) const

inlinevirtualinherited

Definition at line 501 of file TH1.h.

GetBin()

Int_t TH2::GetBin ( Int_t binx, Int_t biny, Int_t binz = 0 ) const

overridevirtualinherited

Reimplemented from TH1.

Definition at line 1055 of file TH2.cxx.

GetBinCenter()

virtual Double_t TH1::GetBinCenter ( Int_t bin ) const

virtualinherited

GetBinContent() [1/3]

virtual Double_t TH1::GetBinContent ( Int_t bin ) const

virtualinherited

Reimplemented from TH1.

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

GetBinContent() [2/3]

Double_t TH2::GetBinContent ( Int_t binx, Int_t biny ) const

inlineoverridevirtualinherited

Reimplemented from TH1.

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 97 of file TH2.h.

GetBinContent() [3/3]

Double_t TH2::GetBinContent ( Int_t binx, Int_t biny, Int_t  ) const

inlineoverridevirtualinherited

Reimplemented from TH1.

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 98 of file TH2.h.

GetBinError() [1/3]

virtual Double_t TH1::GetBinError ( Int_t bin ) const

virtualinherited

Reimplemented in TH2Poly, TProfile2D, TProfile2Poly, TProfile3D, and TProfile.

GetBinError() [2/3]

virtual Double_t TH1::GetBinError ( Int_t binx, Int_t biny ) const

inlinevirtualinherited

Reimplemented in TH2Poly, TProfile2D, TProfile2Poly, TProfile3D, and TProfile.

Definition at line 513 of file TH1.h.

GetBinError() [3/3]

virtual Double_t TH1::GetBinError ( Int_t binx, Int_t biny, Int_t binz ) const

inlinevirtualinherited

Reimplemented in TH2Poly, TProfile2D, TProfile2Poly, TProfile3D, and TProfile.

Definition at line 514 of file TH1.h.

GetBinErrorLow() [1/2]

virtual Double_t TH1::GetBinErrorLow ( Int_t bin ) const

virtualinherited

Reimplemented from TH1.

GetBinErrorLow() [2/2]

virtual Double_t TH2::GetBinErrorLow ( Int_t binx, Int_t biny )

inlinevirtualinherited

Definition at line 101 of file TH2.h.

GetBinErrorOption()

virtual EBinErrorOpt TH1::GetBinErrorOption ( ) const

inlinevirtualinherited

Definition at line 517 of file TH1.h.

GetBinErrorSqUnchecked()

virtual Double_t TH1::GetBinErrorSqUnchecked ( Int_t bin ) const

inlineprotectedvirtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

Definition at line 705 of file TH1.h.

GetBinErrorUp() [1/2]

virtual Double_t TH1::GetBinErrorUp ( Int_t bin ) const

virtualinherited

Reimplemented from TH1.

GetBinErrorUp() [2/2]

virtual Double_t TH2::GetBinErrorUp ( Int_t binx, Int_t biny )

inlinevirtualinherited

Definition at line 102 of file TH2.h.

GetBinLowEdge()

virtual Double_t TH1::GetBinLowEdge ( Int_t bin ) const

virtualinherited

GetBinWidth()

virtual Double_t TH1::GetBinWidth ( Int_t bin ) const

virtualinherited

GetBinWithContent()

virtual Double_t TH1::GetBinWithContent ( Double_t c, Int_t & binx, Int_t firstx = 0, Int_t lastx = 0, Double_t maxdiff = 0 ) const

virtualinherited

GetBinWithContent2()

Double_t TH2::GetBinWithContent2 ( Double_t c, Int_t & binx, Int_t & biny, Int_t firstxbin = 1, Int_t lastxbin = -1, Int_t firstybin = 1, Int_t lastybin = -1, Double_t maxdiff = 0 ) const

virtualinherited

compute first cell (binx,biny) in the range [firstxbin,lastxbin][firstybin,lastybin] for which diff = abs(cell_content-c) <= maxdiff In case several cells in the specified range with diff=0 are found the first cell found is returned in binx,biny.

In case several cells in the specified range satisfy diff <=maxdiff the cell with the smallest difference is returned in binx,biny. In all cases the function returns the smallest difference.

NOTE1: if firstxbin < 0, firstxbin is set to 1 if (lastxbin < firstxbin then lastxbin is set to the number of bins in X ie if firstxbin=1 and lastxbin=0 (default) the search is on all bins in X except for X's under- and overflow bins. if firstybin < 0, firstybin is set to 1 if (lastybin < firstybin then lastybin is set to the number of bins in Y ie if firstybin=1 and lastybin=0 (default) the search is on all bins in Y except for Y's under- and overflow bins.

NOTE2: if maxdiff=0 (default), the first cell with content=c is returned.

Definition at line 1086 of file TH2.cxx.

GetBinXYZ()

virtual void TH1::GetBinXYZ ( Int_t binglobal, Int_t & binx, Int_t & biny, Int_t & binz ) const

virtualinherited

GetBuffer()

const Double_t * TH1::GetBuffer ( ) const

inlineinherited

Definition at line 483 of file TH1.h.

GetBufferLength()

Int_t TH1::GetBufferLength ( ) const

inlineinherited

Definition at line 481 of file TH1.h.

GetBufferSize()

Int_t TH1::GetBufferSize ( ) const

inlineinherited

Definition at line 482 of file TH1.h.

GetCellContent()

virtual Double_t TH1::GetCellContent ( Int_t binx, Int_t biny ) const

inlinevirtualinherited

Definition at line 682 of file TH1.h.

GetCellError()

virtual Double_t TH1::GetCellError ( Int_t binx, Int_t biny ) const

inlinevirtualinherited

Definition at line 684 of file TH1.h.

GetCenter()

virtual void TH1::GetCenter ( Double_t * center ) const

virtualinherited

GetContour()

virtual Int_t TH1::GetContour ( Double_t * levels = nullptr )

virtualinherited

GetContourLevel()

virtual Double_t TH1::GetContourLevel ( Int_t level ) const

virtualinherited

GetContourLevelPad()

virtual Double_t TH1::GetContourLevelPad ( Int_t level ) const

virtualinherited

GetCorrelationFactor()

Double_t TH2::GetCorrelationFactor ( Int_t axis1 = 1, Int_t axis2 = 2 ) const

virtualinherited

Return correlation factor between axis1 and axis2.

Definition at line 1114 of file TH2.cxx.

GetCovariance()

Double_t TH2::GetCovariance ( Int_t axis1 = 1, Int_t axis2 = 2 ) const

virtualinherited

Return covariance between axis1 and axis2.

Definition at line 1132 of file TH2.cxx.

GetCumulative()

TH1 * TH1::GetCumulative ( Bool_t forward = kTRUE, const char * suffix = "_cumulative" ) const

inherited

GetDefaultBufferSize()

Int_t TH1::GetDefaultBufferSize ( )

staticinherited

GetDefaultSumw2()

Bool_t TH1::GetDefaultSumw2 ( )

staticinherited

GetDimension()

virtual Int_t TH1::GetDimension ( ) const

inlinevirtualinherited

Definition at line 527 of file TH1.h.

GetDirectory()

TDirectory * TH1::GetDirectory ( ) const

inlineinherited

Definition at line 523 of file TH1.h.

GetDrawOption()

Option_t * TObject::GetDrawOption ( ) const

virtualinherited

Get option used by the graphics system to draw this object.

Note that before calling object.GetDrawOption(), you must have called object.Draw(..) before in the current pad.

Reimplemented in TBrowser, TFitEditor, TGedFrame, TGFileBrowser, TRootBrowser, and TRootBrowserLite.

Definition at line 445 of file TObject.cxx.

GetDtorOnly()

Longptr_t TObject::GetDtorOnly ( )

staticinherited

Return destructor only flag.

Definition at line 1196 of file TObject.cxx.

GetEffectiveEntries()

virtual Double_t TH1::GetEffectiveEntries ( ) const

virtualinherited

GetEntries()

virtual Double_t TH1::GetEntries ( ) const

virtualinherited

GetFillColor()

virtual Color_t TAttFill::GetFillColor ( ) const

inlinevirtualinherited

Return the fill area color.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 32 of file TAttFill.h.

GetFillStyle()

virtual Style_t TAttFill::GetFillStyle ( ) const

inlinevirtualinherited

Return the fill area style.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 33 of file TAttFill.h.

GetFunction()

virtual TF1 * TH1::GetFunction ( const char * name ) const

virtualinherited

GetIconName()

const char * TObject::GetIconName ( ) const

virtualinherited

Returns mime type name of object.

Used by the TBrowser (via TGMimeTypes class). Override for class of which you would like to have different icons for objects of the same class.

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TASImage, TBranch, TBranchElement, TGeoVolume, TGMainFrame, TKey, TMethodBrowsable, TSystemFile, and TVirtualBranchBrowsable.

Definition at line 472 of file TObject.cxx.

GetIntegral()

virtual Double_t * TH1::GetIntegral ( )

virtualinherited

GetKurtosis()

virtual Double_t TH1::GetKurtosis ( Int_t axis = 1 ) const

virtualinherited

GetLabelColor()

Color_t TH1::GetLabelColor ( Option_t * axis = "X" ) const

virtualinherited

Return the "axis" label color.

Definition at line 53 of file Haxis.cxx.

GetLabelFont()

Style_t TH1::GetLabelFont ( Option_t * axis = "X" ) const

virtualinherited

Return the "axis" label font.

Definition at line 66 of file Haxis.cxx.

GetLabelOffset()

Float_t TH1::GetLabelOffset ( Option_t * axis = "X" ) const

virtualinherited

Return the "axis" label offset.

Definition at line 79 of file Haxis.cxx.

GetLabelSize()

Float_t TH1::GetLabelSize ( Option_t * axis = "X" ) const

virtualinherited

Return the "axis" label size.

Definition at line 92 of file Haxis.cxx.

GetLineColor()

virtual Color_t TAttLine::GetLineColor ( ) const

inlinevirtualinherited

Return the line color.

Reimplemented in TGraphMultiErrors, and TGWin32VirtualXProxy.

Definition at line 36 of file TAttLine.h.

GetLineStyle()

virtual Style_t TAttLine::GetLineStyle ( ) const

inlinevirtualinherited

Return the line style.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 37 of file TAttLine.h.

GetLineWidth()

virtual Width_t TAttLine::GetLineWidth ( ) const

inlinevirtualinherited

Return the line width.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 38 of file TAttLine.h.

GetListOfFunctions()

TList * TH1::GetListOfFunctions ( ) const

inlineinherited

Definition at line 488 of file TH1.h.

GetLowEdge()

virtual void TH1::GetLowEdge ( Double_t * edge ) const

virtualinherited

GetMarkerColor()

virtual Color_t TAttMarker::GetMarkerColor ( ) const

inlinevirtualinherited

Return the marker color.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 33 of file TAttMarker.h.

GetMarkerLineWidth()

Width_t TAttMarker::GetMarkerLineWidth ( Style_t style )

staticinherited

GetMarkerSize()

virtual Size_t TAttMarker::GetMarkerSize ( ) const

inlinevirtualinherited

Return the marker size.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 35 of file TAttMarker.h.

GetMarkerStyle()

virtual Style_t TAttMarker::GetMarkerStyle ( ) const

inlinevirtualinherited

Return the marker style.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 34 of file TAttMarker.h.

GetMarkerStyleBase()

Style_t TAttMarker::GetMarkerStyleBase ( Style_t style )

staticinherited

GetMaximum()

virtual Double_t TH1::GetMaximum ( Double_t maxval = FLT_MAX ) const

virtualinherited

Reimplemented in TH2Poly.

GetMaximumBin() [1/2]

virtual Int_t TH1::GetMaximumBin ( ) const

virtualinherited

GetMaximumBin() [2/2]

virtual Int_t TH1::GetMaximumBin ( Int_t & locmax, Int_t & locmay, Int_t & locmaz ) const

virtualinherited

GetMaximumStored()

virtual Double_t TH1::GetMaximumStored ( ) const

inlinevirtualinherited

Definition at line 533 of file TH1.h.

GetMean()

virtual Double_t TH1::GetMean ( Int_t axis = 1 ) const

virtualinherited

GetMeanError()

virtual Double_t TH1::GetMeanError ( Int_t axis = 1 ) const

virtualinherited

GetMinimum()

virtual Double_t TH1::GetMinimum ( Double_t minval = -FLT_MAX ) const

virtualinherited

Reimplemented in TH2Poly.

GetMinimumAndMaximum()

virtual void TH1::GetMinimumAndMaximum ( Double_t & min, Double_t & max ) const

virtualinherited

GetMinimumBin() [1/2]

virtual Int_t TH1::GetMinimumBin ( ) const

virtualinherited

GetMinimumBin() [2/2]

virtual Int_t TH1::GetMinimumBin ( Int_t & locmix, Int_t & locmiy, Int_t & locmiz ) const

virtualinherited

GetMinimumStored()

virtual Double_t TH1::GetMinimumStored ( ) const

inlinevirtualinherited

Definition at line 537 of file TH1.h.

GetName()

const char * TNamed::GetName ( ) const

inlineoverridevirtualinherited

Returns name of object.

This default method returns the class name. Classes that give objects a name should override this method.

Reimplemented from TObject.

Definition at line 49 of file TNamed.h.

GetNbinsX()

virtual Int_t TH1::GetNbinsX ( ) const

inlinevirtualinherited

Definition at line 541 of file TH1.h.

GetNbinsY()

virtual Int_t TH1::GetNbinsY ( ) const

inlinevirtualinherited

Definition at line 542 of file TH1.h.

GetNbinsZ()

virtual Int_t TH1::GetNbinsZ ( ) const

inlinevirtualinherited

Definition at line 543 of file TH1.h.

GetNcells()

virtual Int_t TH1::GetNcells ( ) const

inlinevirtualinherited

Definition at line 544 of file TH1.h.

GetNdivisions()

Int_t TH1::GetNdivisions ( Option_t * axis = "X" ) const

virtualinherited

Return the number of divisions for "axis".

Definition at line 27 of file Haxis.cxx.

GetNormFactor()

virtual Double_t TH1::GetNormFactor ( ) const

inlinevirtualinherited

Definition at line 545 of file TH1.h.

GetObjectInfo()

char * TH1::GetObjectInfo ( Int_t px, Int_t py ) const

overridevirtualinherited

Returns string containing info about the object at position (px,py).

This method is typically overridden by classes of which the objects can report peculiarities for different positions. Returned string will be re-used (lock in MT environment).

Reimplemented from TObject.

GetObjectStat()

Bool_t TObject::GetObjectStat ( )

staticinherited

Get status of object stat flag.

Definition at line 1181 of file TObject.cxx.

GetOption()

Option_t * TH1::GetOption ( ) const

inlineoverridevirtualinherited

Reimplemented from TObject.

Definition at line 547 of file TH1.h.

GetPainter()

TVirtualHistPainter * TH1::GetPainter ( Option_t * option = "" )

inherited

GetQuantiles()

virtual Int_t TH1::GetQuantiles ( Int_t n, Double_t * xp, const Double_t * p = nullptr )

virtualinherited

GetRandom()

virtual Double_t TH1::GetRandom ( TRandom * rng = nullptr, Option_t * option = "" ) const

virtualinherited

GetRandom2()

void TH2::GetRandom2 ( Double_t & x, Double_t & y, TRandom * rng = nullptr, Option_t * option = "" )

virtualinherited

Return 2 random numbers along axis x and y distributed according to the cell-contents of this 2-D histogram.

Return a NaN if the histogram has a bin with negative content

Parameters

[out]	x	reference to random generated x value
[out]	y	reference to random generated y value
[in]	rng	(optional) Random number generator pointer used (default is gRandom)
[in]	option	(optional) Set it to "width" if your non-uniform bin contents represent a density rather than counts

Definition at line 1170 of file TH2.cxx.

GetRMS()

Double_t TH1::GetRMS ( Int_t axis = 1 ) const

inlineinherited

This function returns the Standard Deviation (Sigma) of the distribution not the Root Mean Square (RMS).

The name "RMS" is been often used as a synonym for the Standard Deviation and it was introduced many years ago (Hbook/PAW times). We keep the name GetRMS for continuity as an alias to GetStdDev. GetStdDev() should be used instead.

Definition at line 566 of file TH1.h.

GetRMSError()

Double_t TH1::GetRMSError ( Int_t axis = 1 ) const

inlineinherited

Definition at line 567 of file TH1.h.

GetSize()

Int_t TArray::GetSize ( ) const

inlineinherited

Definition at line 47 of file TArray.h.

GetSkewness()

virtual Double_t TH1::GetSkewness ( Int_t axis = 1 ) const

virtualinherited

GetStatOverflows()

EStatOverflows TH1::GetStatOverflows ( ) const

inlineinherited

Get the behaviour adopted by the object about the statoverflows. See EStatOverflows for more information.

Definition at line 570 of file TH1.h.

GetStatOverflowsBehaviour()

Bool_t TH1::GetStatOverflowsBehaviour ( ) const

inlineprotectedinherited

Definition at line 391 of file TH1.h.

GetStats()

void TH2::GetStats ( Double_t * stats ) const

overridevirtualinherited

Fill the array stats from the contents of this histogram The array stats must be correctly dimensioned in the calling program.

stats[0] = sumw
stats[1] = sumw2
stats[2] = sumwx
stats[3] = sumwx2
stats[4] = sumwy
stats[5] = sumwy2
stats[6] = sumwxy

If no axis-subranges are specified (via TAxis::SetRange), the array stats is simply a copy of the statistics quantities computed at filling time. If sub-ranges are specified, the function recomputes these quantities from the bin contents in the current axis ranges.

Note that the mean value/StdDev is computed using the bins in the currently defined ranges (see TAxis::SetRange). By default the ranges include all bins from 1 to nbins included, excluding underflows and overflows. To force the underflows and overflows in the computation, one must call the static function TH1::StatOverflows(kTRUE) before filling the histogram.

Reimplemented from TH1.

Reimplemented in TH2Poly, TProfile2D, and TProfile2Poly.

Definition at line 1225 of file TH2.cxx.

GetStdDev()

virtual Double_t TH1::GetStdDev ( Int_t axis = 1 ) const

virtualinherited

GetStdDevError()

virtual Double_t TH1::GetStdDevError ( Int_t axis = 1 ) const

virtualinherited

GetSum()

Stat_t TArrayD::GetSum ( ) const

inlineinherited

Definition at line 46 of file TArrayD.h.

GetSumOfAllWeights()

Double_t TH1::GetSumOfAllWeights ( const bool includeOverflow, Double_t * sumWeightSquare = nullptr ) const

inherited

GetSumOfWeights()

virtual Double_t TH1::GetSumOfWeights ( ) const

inlinevirtualinherited

Return the sum of weights across all bins excluding under/overflows.

See also

TH1::GetSumOfAllWeights()

Definition at line 559 of file TH1.h.

GetSumw2() [1/2]

virtual TArrayD * TH1::GetSumw2 ( )

inlinevirtualinherited

Definition at line 560 of file TH1.h.

GetSumw2() [2/2]

virtual const TArrayD * TH1::GetSumw2 ( ) const

inlinevirtualinherited

Definition at line 561 of file TH1.h.

GetSumw2N()

virtual Int_t TH1::GetSumw2N ( ) const

inlinevirtualinherited

Definition at line 562 of file TH1.h.

GetTickLength()

Float_t TH1::GetTickLength ( Option_t * axis = "X" ) const

virtualinherited

Return the "axis" tick length.

Definition at line 105 of file Haxis.cxx.

GetTitle()

const char * TNamed::GetTitle ( ) const

inlineoverridevirtualinherited

Returns title of object.

This default method returns the class title (i.e. description). Classes that give objects a title should override this method.

Reimplemented from TObject.

Definition at line 50 of file TNamed.h.

GetTitleFont()

Style_t TH1::GetTitleFont ( Option_t * axis = "X" ) const

virtualinherited

Return the "axis" title font.

Definition at line 118 of file Haxis.cxx.

GetTitleOffset()

Float_t TH1::GetTitleOffset ( Option_t * axis = "X" ) const

virtualinherited

Return the "axis" title offset.

Definition at line 131 of file Haxis.cxx.

GetTitleSize()

Float_t TH1::GetTitleSize ( Option_t * axis = "X" ) const

virtualinherited

Return the "axis" title size.

Definition at line 144 of file Haxis.cxx.

GetUniqueID()

UInt_t TObject::GetUniqueID ( ) const

virtualinherited

Return the unique object id.

Definition at line 480 of file TObject.cxx.

GetXaxis() [1/2]

TAxis * TH1::GetXaxis ( )

inlineinherited

Definition at line 571 of file TH1.h.

GetXaxis() [2/2]

const TAxis * TH1::GetXaxis ( ) const

inlineinherited

Definition at line 574 of file TH1.h.

GetYaxis() [1/2]

TAxis * TH1::GetYaxis ( )

inlineinherited

Definition at line 572 of file TH1.h.

GetYaxis() [2/2]

const TAxis * TH1::GetYaxis ( ) const

inlineinherited

Definition at line 575 of file TH1.h.

GetZaxis() [1/2]

TAxis * TH1::GetZaxis ( )

inlineinherited

Definition at line 573 of file TH1.h.

GetZaxis() [2/2]

const TAxis * TH1::GetZaxis ( ) const

inlineinherited

Definition at line 576 of file TH1.h.

HandleTimer()

Bool_t TObject::HandleTimer ( TTimer * timer )

virtualinherited

Execute action in response of a timer timing out.

This method must be overridden if an object has to react to timers.

Reimplemented in TGCommandPlugin, TGDNDManager, TGFileContainer, TGHtml, TGLEventHandler, TGPopupMenu, TGraphTime, TGScrollBar, TGShutter, TGTextEdit, TGTextEditor, TGTextEntry, TGTextView, TGToolTip, TGuiBldDragManager, TGWindow, and TTreeViewer.

Definition at line 516 of file TObject.cxx.

Hash()

ULong_t TNamed::Hash ( ) const

inlineoverridevirtualinherited

Return hash value for this object.

Note: If this routine is overloaded in a derived class, this derived class should also add

ROOT::CallRecursiveRemoveIfNeeded(*this)

Otherwise, when RecursiveRemove is called (by ~TObject or example) for this type of object, the transversal of THashList and THashTable containers will will have to be done without call Hash (and hence be linear rather than logarithmic complexity). You will also see warnings like

Error in <ROOT::Internal::TCheckHashRecursiveRemoveConsistency::CheckRecursiveRemove>: The class SomeName overrides
TObject::Hash but does not call TROOT::RecursiveRemove in its destructor.

Reimplemented from TObject.

Definition at line 51 of file TNamed.h.

HasInconsistentHash()

Bool_t TObject::HasInconsistentHash ( ) const

inlineinherited

Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

missing call to RecursiveRemove in destructor).

Note: Since the consistency is only tested for during inserts, this routine will return true for object that have never been inserted whether or not they have a consistent setup. This has no negative side-effect as searching for the object with the right or wrong Hash will always yield a not-found answer (Since anyway no hash can be guaranteed unique, there is always a check)

Definition at line 366 of file TObject.h.

Info()

void TObject::Info ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue info message.

Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.

Definition at line 1072 of file TObject.cxx.

InheritsFrom() [1/2]

Bool_t TObject::InheritsFrom ( const char * classname ) const

virtualinherited

Returns kTRUE if object inherits from class "classname".

Reimplemented in TClass.

Definition at line 549 of file TObject.cxx.

InheritsFrom() [2/2]

Bool_t TObject::InheritsFrom ( const TClass * cl ) const

virtualinherited

Returns kTRUE if object inherits from TClass cl.

Reimplemented in TClass.

Definition at line 557 of file TObject.cxx.

Inspect()

void TObject::Inspect ( ) const

virtualinherited

Dump contents of this object in a graphics canvas.

Same action as Dump but in a graphical form. In addition pointers to other objects can be followed.

The following picture is the Inspect of a histogram object:

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TGFrame, TInspectorObject, and TSystemFile.

Definition at line 570 of file TObject.cxx.

Integral() [1/4]

Double_t TH2::Integral ( Int_t firstxbin, Int_t lastxbin, Int_t firstybin, Int_t lastybin, Option_t * option = "" ) const

virtualinherited

Return integral of bin contents in range [firstxbin,lastxbin],[firstybin,lastybin] for a 2-D histogram By default the integral is computed as the sum of bin contents in the range.

if option "width" is specified, the integral is the sum of the bin contents multiplied by the bin width in x and in y.

Definition at line 1302 of file TH2.cxx.

Integral() [2/4]

virtual Double_t TH1::Integral ( Int_t binx1, Int_t binx2, Option_t * option = "" ) const

privatevirtualinherited

Reimplemented from TH1.

Integral() [3/4]

virtual Double_t TH2::Integral ( Int_t , Int_t , Int_t , Int_t , Int_t , Int_t , Option_t * = "" ) const

inlinevirtualinherited

Definition at line 110 of file TH2.h.

Integral() [4/4]

Double_t TH2::Integral ( Option_t * option = "" ) const

overridevirtualinherited

Return integral of bin contents.

Only bins in the bins range are considered. By default the integral is computed as the sum of bin contents in the range. if option "width" is specified, the integral is the sum of the bin contents multiplied by the bin width in x and in y.

Reimplemented from TH1.

Reimplemented in TH2Poly.

Definition at line 1288 of file TH2.cxx.

IntegralAndError() [1/2]

virtual Double_t TH1::IntegralAndError ( Int_t binx1, Int_t binx2, Double_t & err, Option_t * option = "" ) const

privatevirtualinherited

Reimplemented from TH1.

IntegralAndError() [2/2]

Double_t TH2::IntegralAndError ( Int_t firstxbin, Int_t lastxbin, Int_t firstybin, Int_t lastybin, Double_t & error, Option_t * option = "" ) const

virtualinherited

Return integral of bin contents in range [firstxbin,lastxbin],[firstybin,lastybin] for a 2-D histogram.

Calculates also the integral error using error propagation from the bin errors assuming that all the bins are uncorrelated. By default the integral is computed as the sum of bin contents in the range. if option "width" is specified, the integral is the sum of the bin contents multiplied by the bin width in x and in y.

Definition at line 1316 of file TH2.cxx.

Interpolate() [1/3]

Double_t TH2::Interpolate ( Double_t x ) const

overrideprotectedvirtualinherited

illegal for a TH2

Reimplemented from TH1.

Reimplemented in TH2Poly.

Definition at line 1324 of file TH2.cxx.

Interpolate() [2/3]

Double_t TH2::Interpolate ( Double_t x, Double_t y ) const

overridevirtualinherited

Given a point P(x,y), Interpolate approximates the value via bilinear interpolation based on the four nearest bin centers see Wikipedia, Bilinear Interpolation Andy Mastbaum 10/8/2008 vaguely based on R.Raja 6-Sep-2008.

Reimplemented from TH1.

Reimplemented in TH2Poly.

Definition at line 1337 of file TH2.cxx.

Interpolate() [3/3]

Double_t TH2::Interpolate ( Double_t x, Double_t y, Double_t z ) const

overridevirtualinherited

illegal for a TH2

Reimplemented from TH1.

Reimplemented in TH2Poly.

Definition at line 1411 of file TH2.cxx.

InvertBit()

void TObject::InvertBit ( UInt_t f )

inlineinherited

Definition at line 206 of file TObject.h.

IsA()

TClass * TH2D::IsA ( ) const

inlineoverridevirtual

Returns

TClass describing current object

Reimplemented from TH2.

Reimplemented in TProfile2D.

Definition at line 442 of file TH2.h.

IsBinOverflow()

Bool_t TH1::IsBinOverflow ( Int_t bin, Int_t axis = 0 ) const

inherited

IsBinUnderflow()

Bool_t TH1::IsBinUnderflow ( Int_t bin, Int_t axis = 0 ) const

inherited

IsDestructed()

Bool_t TObject::IsDestructed ( ) const

inlineinherited

IsDestructed.

Note

This function must be non-virtual as it can be used on destructed (but not yet modified) memory. This is used for example in TClonesArray to record the element that have been destructed but not deleted and thus are ready for re-use (by operator new with placement).

Returns

true if this object's destructor has been run.

Definition at line 186 of file TObject.h.

IsEmpty()

Bool_t TH1::IsEmpty ( ) const

protectedinherited

IsEqual()

Bool_t TObject::IsEqual ( const TObject * obj ) const

virtualinherited

Default equal comparison (objects are equal if they have the same address in memory).

More complicated classes might want to override this function.

Reimplemented in TGObject, TObjString, TPair, and TQCommand.

Definition at line 589 of file TObject.cxx.

IsFolder()

Bool_t TObject::IsFolder ( ) const

virtualinherited

Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, ROOT::Internal::THnBaseBrowsable, TApplicationRemote, TAxis3D, TBaseClass, TBranch, TBranchClones, TBranchElement, TBranchObject, TBranchSTL, TBrowserObject, TCanvas, TClass, TCollection, TDatabasePDG, TDirectory, TFolder, TGeoManager, TGeometry, TGeoNode, TGeoNodeMatrix, TGeoOverlap, TGeoTrack, TGeoVolume, THbookFile, THbookKey, THnBase, TKey, TMapFile, TMultiDimFit, TNode, TPad, TPair, TParticleClassPDG, TPrincipal, TRemoteObject, TROOT, TRootIconList, TSPlot, TSystemDirectory, TTask, TTree, and TVirtualBranchBrowsable.

Definition at line 579 of file TObject.cxx.

IsHighlight()

virtual Bool_t TH1::IsHighlight ( ) const

inlinevirtualinherited

Definition at line 585 of file TH1.h.

IsOnHeap()

Bool_t TObject::IsOnHeap ( ) const

inlineinherited

Definition at line 160 of file TObject.h.

IsSortable()

Bool_t TNamed::IsSortable ( ) const

inlineoverridevirtualinherited

Reimplemented from TObject.

Reimplemented in TStructNodeProperty.

Definition at line 52 of file TNamed.h.

IsTransparent()

Bool_t TAttFill::IsTransparent ( ) const

inlinevirtualinherited

Reimplemented in TGWin32VirtualXProxy.

Definition at line 49 of file TAttFill.h.

IsZombie()

Bool_t TObject::IsZombie ( ) const

inlineinherited

Definition at line 161 of file TObject.h.

KolmogorovTest()

Double_t TH2::KolmogorovTest ( const TH1 * h2, Option_t * option = "" ) const

overridevirtualinherited

Statistical test of compatibility in shape between THIS histogram and h2, using Kolmogorov test.

Default: Ignore under- and overflow bins in comparison

option is a character string to specify options

• "U" include Underflows in test
• "O" include Overflows
• "N" include comparison of normalizations
• "D" Put out a line of "Debug" printout
• "M" Return the Maximum Kolmogorov distance instead of prob

The returned function value is the probability of test (much less than one means NOT compatible)

The KS test uses the distance between the pseudo-CDF's obtained from the histogram. Since in 2D the order for generating the pseudo-CDF is arbitrary, two pairs of pseudo-CDF are used, one starting from the x axis the other from the y axis and the maximum distance is the average of the two maximum distances obtained.

Code adapted by Rene Brun from original HBOOK routine HDIFF

Reimplemented from TH1.

Definition at line 1441 of file TH2.cxx.

LabelsDeflate()

virtual void TH1::LabelsDeflate ( Option_t * axis = "X" )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

LabelsInflate()

virtual void TH1::LabelsInflate ( Option_t * axis = "X" )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

LabelsOption()

virtual void TH1::LabelsOption ( Option_t * option = "h", Option_t * axis = "X" )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

LoggedInconsistency()

int TH1::LoggedInconsistency ( const char * name, const TH1 * h1, const TH1 * h2, bool useMerge = false ) const

protectedinherited

Definition at line 893 of file TH1.cxx.

ls()

void TNamed::ls ( Option_t * option = "" ) const

overridevirtualinherited

List TNamed name and title.

Reimplemented from TObject.

Reimplemented in ROOT::Experimental::XRooFit::xRooBrowser, TNode, TROOT, TStreamerBase, TStreamerElement, TStreamerInfo, TStreamerSTL, TTask, TText, and TVirtualStreamerInfo.

Definition at line 112 of file TNamed.cxx.

MakeZombie()

void TObject::MakeZombie ( )

inlineprotectedinherited

Definition at line 55 of file TObject.h.

MayNotUse()

void TObject::MayNotUse ( const char * method ) const

inherited

Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

Definition at line 1160 of file TObject.cxx.

Merge() [1/2]

virtual Long64_t TH1::Merge ( TCollection * list )

inlinevirtualinherited

Reimplemented in TH2Poly, TProfile2D, TProfile2Poly, TProfile3D, and TProfile.

Definition at line 592 of file TH1.h.

Merge() [2/2]

Long64_t TH1::Merge ( TCollection * list, Option_t * option )

inherited

Modify() [1/3]

virtual void TAttFill::Modify ( )

virtualinherited

Modify() [2/3]

virtual void TAttLine::Modify ( )

virtualinherited

Modify() [3/3]

virtual void TAttMarker::Modify ( )

virtualinherited

ModifyOn() [1/3]

virtual void TAttFill::ModifyOn ( TVirtualPad & pad )

virtualinherited

ModifyOn() [2/3]

virtual void TAttLine::ModifyOn ( TVirtualPad & pad )

virtualinherited

ModifyOn() [3/3]

virtual void TAttMarker::ModifyOn ( TVirtualPad & pad )

virtualinherited

Multiply() [1/3]

virtual Bool_t TH1::Multiply ( const TH1 * h1 )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

Multiply() [2/3]

virtual Bool_t TH1::Multiply ( const TH1 * h1, const TH1 * h2, Double_t c1 = 1, Double_t c2 = 1, Option_t * option = "" )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

Multiply() [3/3]

virtual Bool_t TH1::Multiply ( TF1 * f1, Double_t c1 = 1 )

virtualinherited

Reimplemented in TH2Poly, TProfile2D, TProfile3D, and TProfile.

Normalize()

virtual void TH1::Normalize ( Option_t * option = "" )

virtualinherited

Notify()

Bool_t TObject::Notify ( )

virtualinherited

This method must be overridden to handle object notification (the base implementation is no-op).

Different objects in ROOT use the Notify method for different purposes, in coordination with other objects that call this method at the appropriate time.

For example, TLeaf uses it to load class information; TBranchRef to load contents of referenced branches TBranchRef; most notably, based on Notify, TChain implements a callback mechanism to inform interested parties when it switches to a new sub-tree.

Reimplemented in h1analysis, h1analysisTreeReader, TARInterruptHandler, TASInputHandler, TASInterruptHandler, TASLogHandler, TASSigPipeHandler, TBlinkTimer, TBranchElement, TBranchRef, TBreakLineCom, TBrowserTimer, TCollection, TDelCharCom, TDelTextCom, TFileHandler, TGContainerKeyboardTimer, TGContainerScrollTimer, TGInputHandler, TGLRedrawTimer, TGTextEditHist, TGuiBldDragManagerRepeatTimer, TIdleTimer, TInsCharCom, TInsTextCom, TInterruptHandler, TLeafObject, TMessageHandler, TNotifyLink< Type >, TNotifyLink< RNoCleanupNotifierHelper >, TNotifyLink< ROOT::Detail::TBranchProxy >, TNotifyLink< TTreeReader >, TPopupDelayTimer, TProcessEventTimer, TRefTable, TRepeatTimer, TSBRepeatTimer, TSelector, TSelectorDraw, TSelectorEntries, TSignalHandler, TSingleShotCleaner, TSocketHandler, TStdExceptionHandler, TSysEvtHandler, TTermInputHandler, TThreadTimer, TTimeOutTimer, TTimer, TTipDelayTimer, TTree, TTreeFormula, TTreeFormulaManager, TTreeReader, TViewTimer, and TViewUpdateTimer.

Definition at line 618 of file TObject.cxx.

Obsolete()

void TObject::Obsolete ( const char * method, const char * asOfVers, const char * removedFromVers ) const

inherited

Use this method to declare a method obsolete.

Specify as of which version the method is obsolete and as from which version it will be removed.

Definition at line 1169 of file TObject.cxx.

operator delete() [1/3]

void TObject::operator delete ( void * ptr, size_t size )

inherited

Operator delete for sized deallocation.

Definition at line 1234 of file TObject.cxx.

operator delete() [2/3]

void TObject::operator delete ( void * ptr )

inherited

Operator delete.

Definition at line 1212 of file TObject.cxx.

operator delete() [3/3]

void TObject::operator delete ( void * ptr, void * vp )

inherited

Only called by placement new when throwing an exception.

Definition at line 1266 of file TObject.cxx.

operator delete[]() [1/3]

void TObject::operator delete[] ( void * ptr, size_t size )

inherited

Operator delete [] for sized deallocation.

Definition at line 1245 of file TObject.cxx.

operator delete[]() [2/3]

void TObject::operator delete[] ( void * ptr )

inherited

Operator delete [].

Definition at line 1223 of file TObject.cxx.

operator delete[]() [3/3]

void TObject::operator delete[] ( void * ptr, void * vp )

inherited

Only called by placement new[] when throwing an exception.

Definition at line 1274 of file TObject.cxx.

operator new() [1/2]

void * TObject::operator new ( size_t sz )

inlineinherited

Definition at line 189 of file TObject.h.

operator new() [2/2]

void * TObject::operator new ( size_t sz, void * vp )

inlineinherited

Definition at line 191 of file TObject.h.

operator new[]() [1/2]

void * TObject::operator new[] ( size_t sz )

inlineinherited

Definition at line 190 of file TObject.h.

operator new[]() [2/2]

void * TObject::operator new[] ( size_t sz, void * vp )

inlineinherited

Definition at line 192 of file TObject.h.

operator=()

TH2D & TH2D::operator=

(

const TH2D &

h1

)

Operator =.

Definition at line 4284 of file TH2.cxx.

operator[]() [1/2]

Double_t & TArrayD::operator[] ( Int_t i )

inlineinherited

Definition at line 85 of file TArrayD.h.

operator[]() [2/2]

Double_t TArrayD::operator[] ( Int_t i ) const

inlineinherited

Definition at line 92 of file TArrayD.h.

OutOfBoundsError()

Bool_t TArray::OutOfBoundsError ( const char * where, Int_t i ) const

protectedinherited

Generate an out-of-bounds error. Always returns false.

Definition at line 29 of file TArray.cxx.

Paint()

void TH1::Paint ( Option_t * option = "" )

overridevirtualinherited

This method must be overridden if a class wants to paint itself.

The difference between Paint() and Draw() is that when a object draws itself it is added to the display list of the pad in which it is drawn (and automatically redrawn whenever the pad is redrawn). While paint just draws the object without adding it to the pad display list.

Reimplemented from TObject.

Pop()

void TObject::Pop ( )

virtualinherited

Pop on object drawn in a pad to the top of the display list.

I.e. it will be drawn last and on top of all other primitives.

Reimplemented in TFrame, TPad, and TVirtualPad.

Definition at line 640 of file TObject.cxx.

Print()

void TH1::Print ( Option_t * option = "" ) const

overridevirtualinherited

This method must be overridden when a class wants to print itself.

Reimplemented from TObject.

ProfileX()

TProfile * TH2::ProfileX ( const char * name = "_pfx", Int_t firstybin = 1, Int_t lastybin = -1, Option_t * option = "" ) const

inherited

Project a 2-D histogram into a profile histogram along X (integration along Y).

The projection is made from summing the channels along the Y axis ranging from firstybin to lastybin included. By default, bins 1 to ny are included When all bins are included, the number of entries in the projection is set to the number of entries of the 2-D histogram, otherwise the number of entries is incremented by 1 for all non empty cells.

if option "d" is specified, the profile is drawn in the current pad.

if option "o" original axis range of the target axes will be kept, but only bins inside the selected range will be filled.

if option "width" is specified, each bin content is multiplied by its Y bin-width during projection

The option can also be used to specify the projected profile error type. Values which can be used are 's', 'i', or 'g'. See TProfile::BuildOptions for details

Using a TCutG object, it is possible to select a sub-range of a 2-D histogram. One must create a graphical cut (mouse or C++) and specify the name of the cut between [] in the option. For example, with a TCutG named "cutg", one can call: myhist->ProfileX(" ",firstybin,lastybin,"[cutg]"); To invert the cut, it is enough to put a "-" in front of its name: myhist->ProfileX(" ",firstybin,lastybin,"[-cutg]"); It is possible to apply several cuts ("," means logical AND): myhist->ProfileX(" ",firstybin,lastybin,"[cutg1,cutg2]");

NOTE that if a TProfile named "name" exists in the current directory or pad with a compatible axis the profile is reset and filled again with the projected contents of the TH2. In the case of axis incompatibility an error is reported and a NULL pointer is returned.

NOTE that the X axis attributes of the TH2 are copied to the X axis of the profile.

NOTE that the default under- / overflow behavior differs from what ProjectionX does! Profiles take the bin center into account, so here the under- and overflow bins are ignored by default.

NOTE that the return profile histogram is computed using the Y bin center values instead of the real Y values which are used to fill the 2d histogram. Therefore the obtained profile is just an approximation of the correct profile histogram that would be obtained when filling it directly with the original data (see ROOT-7770)

Definition at line 2084 of file TH2.cxx.

ProfileY()

TProfile * TH2::ProfileY ( const char * name = "_pfy", Int_t firstxbin = 1, Int_t lastxbin = -1, Option_t * option = "" ) const

inherited

Project a 2-D histogram into a profile histogram along Y (integration along X).

The projection is made from summing the channels along the X axis ranging from firstxbin to lastxbin included. By default, bins 1 to nx are included When all bins are included, the number of entries in the projection is set to the number of entries of the 2-D histogram, otherwise the number of entries is incremented by 1 for all non empty cells.

if option "d" is specified, the profile is drawn in the current pad.

if option "o" , the original axis range of the target axis will be kept, but only bins inside the selected range will be filled.

if option "width" is specified, each bin content is multiplied by its X bin-width during projection

The option can also be used to specify the projected profile error type. Values which can be used are 's', 'i', or 'g'. See TProfile::BuildOptions for details Using a TCutG object, it is possible to select a sub-range of a 2-D histogram.

One must create a graphical cut (mouse or C++) and specify the name of the cut between [] in the option. For example, with a TCutG named "cutg", one can call: myhist->ProfileY(" ",firstybin,lastybin,"[cutg]"); To invert the cut, it is enough to put a "-" in front of its name: myhist->ProfileY(" ",firstybin,lastybin,"[-cutg]"); It is possible to apply several cuts: myhist->ProfileY(" ",firstybin,lastybin,"[cutg1,cutg2]");

NOTE that if a TProfile named "name" exists in the current directory or pad with a compatible axis the profile is reset and filled again with the projected contents of the TH2. In the case of axis incompatibility an error is reported and a NULL pointer is returned.

NOTE that the Y axis attributes of the TH2 are copied to the X axis of the profile.

NOTE that the default under- / overflow behavior differs from what ProjectionX does! Profiles take the bin center into account, so here the under- and overflow bins are ignored by default.

NOTE that the return profile histogram is computed using the X bin center values instead of the real X values which are used to fill the 2d histogram. Therefore the obtained profile is just an approximation of the correct profile histogram that would be obtained when filling it directly with the original data (see ROOT-7770)

Definition at line 2137 of file TH2.cxx.

ProjectionX()

TH1D * TH2::ProjectionX ( const char * name = "_px", Int_t firstybin = 0, Int_t lastybin = -1, Option_t * option = "" ) const

inherited

Project a 2-D histogram into a 1-D histogram along X (integration along Y).

The projection is always of the type TH1D. The projection is made from summing the channels along the Y axis ranging from firstybin to lastybin included. By default, all bins including under- and overflow are included. The number of entries in the projection is estimated from the number of effective entries for all the cells included in the projection.

To exclude the underflow bins in Y, use firstybin=1. To exclude the overflow bins in Y, use lastybin=nx.

if option "e" is specified, the errors are computed. if option "d" is specified, the projection is drawn in the current pad. if option "o" original axis range of the target axes will be kept, but only bins inside the selected range will be filled.

if option "width" is specified, each bin content is multiplied by its Y bin-width during projection

Using a TCutG object, it is possible to select a sub-range of a 2-D histogram. One must create a graphical cut (mouse or C++) and specify the name of the cut between [] in the option. For example, with a TCutG named "cutg", one can call: myhist->ProjectionX(" ",firstybin,lastybin,"[cutg]"); To invert the cut, it is enough to put a "-" in front of its name: myhist->ProjectionX(" ",firstybin,lastybin,"[-cutg]"); It is possible to apply several cuts: myhist->ProjectionX(" ",firstybin,lastybin,"[cutg1,cutg2]");

NOTE that if a TH1D named "name" exists in the current directory or pad the histogram is reset and filled again with the projected contents of the TH2.

NOTE that the X axis attributes of the TH2 are copied to the X axis of the projection.

Definition at line 2420 of file TH2.cxx.

ProjectionY()

TH1D * TH2::ProjectionY ( const char * name = "_py", Int_t firstxbin = 0, Int_t lastxbin = -1, Option_t * option = "" ) const

inherited

Project a 2-D histogram into a 1-D histogram along Y (integration along X).

The projection is always of the type TH1D. The projection is made from summing the channels along the X axis ranging from firstxbin to lastxbin included. By default, all bins including under- and overflow are included. The number of entries in the projection is estimated from the number of effective entries for all the cells included in the projection

To exclude the underflow bins in X, use firstxbin=1. To exclude the overflow bins in X, use lastxbin=nx.

if option "e" is specified, the errors are computed. if option "d" is specified, the projection is drawn in the current pad. if option "o" original axis range of the target axes will be kept, but only bins inside the selected range will be filled.

if option "width" is specified, each bin content is multiplied by its X bin-width during projection

Using a TCutG object, it is possible to select a sub-range of a 2-D histogram. One must create a graphical cut (mouse or C++) and specify the name of the cut between [] in the option. For example, with a TCutG named "cutg", one can call: myhist->ProjectionY(" ",firstxbin,lastxbin,"[cutg]"); To invert the cut, it is enough to put a "-" in front of its name: myhist->ProjectionY(" ",firstxbin,lastxbin,"[-cutg]"); It is possible to apply several cuts: myhist->ProjectionY(" ",firstxbin,lastxbin,"[cutg1,cutg2]");

NOTE that if a TH1D named "name" exists in the current directory or pad and having a compatible axis, the histogram is reset and filled again with the projected contents of the TH2. In the case of axis incompatibility, an error is reported and a NULL pointer is returned.

NOTE that the Y axis attributes of the TH2 are copied to the X axis of the projection.

Definition at line 2463 of file TH2.cxx.

ProvideSaveName()

TString TH1::ProvideSaveName ( Option_t * option, Bool_t testfdir = kFALSE )

protectedinherited

PutStats()

void TH2::PutStats ( Double_t * stats )

overridevirtualinherited

Replace current statistics with the values in array stats.

Reimplemented from TH1.

Reimplemented in TProfile2D.

Definition at line 2472 of file TH2.cxx.

QuantilesX()

TH1D * TH2::QuantilesX ( Double_t prob = 0.5, const char * name = "_qx" ) const

inherited

Compute the X distribution of quantiles in the other variable Y name is the name of the returned histogram prob is the probability content for the quantile (0.5 is the default for the median) An approximate error for the quantile is computed assuming that the distribution in the other variable is normal.

According to this approximate formula the error on the quantile is estimated as sqrt( p (1-p) / ( n * f(q)^2) ), where p is the probability content of the quantile and n is the number of events used to compute the quantile and f(q) is the probability distribution for the other variable evaluated at the obtained quantile. In the error estimation the probability is then assumed to be a normal distribution.

Definition at line 2492 of file TH2.cxx.

QuantilesY()

TH1D * TH2::QuantilesY ( Double_t prob = 0.5, const char * name = "_qy" ) const

inherited

Compute the Y distribution of quantiles in the other variable X name is the name of the returned histogram prob is the probability content for the quantile (0.5 is the default for the median) An approximate error for the quantile is computed assuming that the distribution in the other variable is normal.

Definition at line 2505 of file TH2.cxx.

Read()

Int_t TObject::Read ( const char * name )

virtualinherited

Read contents of object with specified name from the current directory.

First the key with the given name is searched in the current directory, next the key buffer is deserialized into the object. The object must have been created before via the default constructor. See TObject::Write().

Reimplemented in TBuffer, TKey, TKeySQL, and TKeyXML.

Definition at line 673 of file TObject.cxx.

ReadArray()

TArray * TArray::ReadArray ( TBuffer & b, const TClass * clReq )

staticinherited

Read TArray object from buffer.

Simplified version of TBuffer::ReadObject (does not keep track of multiple references to same array).

Definition at line 40 of file TArray.cxx.

Rebin()

TH2 * TH2::Rebin ( Int_t ngroup = 2, const char * newname = "", const Double_t * xbins = nullptr )

overridevirtualinherited

Override TH1::Rebin as TH2::RebinX Rebinning in variable binning as for TH1 is not allowed If a non-null pointer is given an error is flagged see RebinX and Rebin2D.

Reimplemented from TH1.

Definition at line 1634 of file TH2.cxx.

Rebin2D()

TH2 * TH2::Rebin2D ( Int_t nxgroup = 2, Int_t nygroup = 2, const char * newname = "" )

virtualinherited

Rebin this histogram grouping nxgroup/nygroup bins along the xaxis/yaxis together.

if newname is not blank a new temporary histogram hnew is created. else the current histogram is modified (default) The parameter nxgroup/nygroup indicate how many bins along the xaxis/yaxis of this have to me merged into one bin of hnew If the original histogram has errors stored (via Sumw2), the resulting histograms has new errors correctly calculated.

examples: if hpxpy is an existing TH2 histogram with 40 x 40 bins

hpxpy->Rebin2D();  // merges two bins along the xaxis and yaxis in one in hpxpy
                   // Carefull: previous contents of hpxpy are lost
hpxpy->RebinX(5);  //merges five bins along the xaxis in one in hpxpy
TH2 *hnew = hpxpy->RebinY(5,"hnew"); // creates a new histogram hnew
                                     // merging 5 bins of h1 along the yaxis in one bin

NOTE : If nxgroup/nygroup is not an exact divider of the number of bins, along the xaxis/yaxis the top limit(s) of the rebinned histogram is changed to the upper edge of the xbin=newxbins*nxgroup resp. ybin=newybins*nygroup and the corresponding bins are added to the overflow bin. Statistics will be recomputed from the new bin contents.

Reimplemented in TProfile2D.

Definition at line 1669 of file TH2.cxx.

RebinAxis()

virtual void TH1::RebinAxis ( Double_t x, TAxis * axis )

inlinevirtualinherited

Definition at line 686 of file TH1.h.

RebinX()

TH2 * TH2::RebinX ( Int_t ngroup = 2, const char * newname = "" )

overridevirtualinherited

Rebin only the X axis see Rebin2D.

Reimplemented from TH1.

Reimplemented in TProfile2D.

Definition at line 1613 of file TH2.cxx.

RebinY()

TH2 * TH2::RebinY ( Int_t ngroup = 2, const char * newname = "" )

virtualinherited

Rebin only the Y axis see Rebin2D.

Reimplemented in TProfile2D.

Definition at line 1623 of file TH2.cxx.

Rebuild()

virtual void TH1::Rebuild ( Option_t * option = "" )

virtualinherited

RecomputeAxisLimits()

Bool_t TH1::RecomputeAxisLimits ( TAxis & destAxis, const TAxis & anAxis )

staticprotectedinherited

RecursiveRemove()

void TH1::RecursiveRemove ( TObject * obj )

overridevirtualinherited

Recursively remove this object from a list.

Typically implemented by classes that can contain multiple references to a same object.

Reimplemented from TObject.

Reset() [1/3]

void TArrayD::Reset ( )

inlineinherited

Definition at line 47 of file TArrayD.h.

Reset() [2/3]

void TArrayD::Reset ( Double_t val )

inlineinherited

Definition at line 48 of file TArrayD.h.

Reset() [3/3]

void TH2D::Reset ( Option_t * option = "" )

overridevirtual

Reset this histogram: contents, errors, etc.

Reimplemented from TH2.

Reimplemented in TProfile2D.

Definition at line 4227 of file TH2.cxx.

ResetAttFill()

virtual void TAttFill::ResetAttFill ( Option_t * option = "" )

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

ResetAttLine()

virtual void TAttLine::ResetAttLine ( Option_t * option = "" )

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

ResetAttMarker()

virtual void TAttMarker::ResetAttMarker ( Option_t * toption = "" )

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

ResetBit()

void TObject::ResetBit ( UInt_t f )

inlineinherited

Definition at line 203 of file TObject.h.

ResetStats()

virtual void TH1::ResetStats ( )

virtualinherited

RetrieveBinContent()

Double_t TH2D::RetrieveBinContent ( Int_t bin ) const

inlineoverrideprotectedvirtual

Raw retrieval of bin content on internal data structure see convention for numbering bins in TH1::GetBin.

Implements TH1.

Reimplemented in TProfile2D.

Definition at line 439 of file TH2.h.

SameLimitsAndNBins()

Bool_t TH1::SameLimitsAndNBins ( const TAxis & axis1, const TAxis & axis2 )

staticprotectedinherited

SaveAs()

void TH1::SaveAs ( const char * filename = "hist", Option_t * option = "" ) const

overridevirtualinherited

Save this object in the file specified by filename.

• if "filename" contains ".root" the object is saved in filename as root binary file.
• if "filename" contains ".xml" the object is saved in filename as a xml ascii file.
• if "filename" contains ".cc" the object is saved in filename as C code independent from ROOT. The code is generated via SavePrimitive(). Specific code should be implemented in each object to handle this option. Like in TF1::SavePrimitive().

• otherwise the object is written to filename as a CINT/C++ script. The C++ code to rebuild this object is generated via SavePrimitive(). The "option" parameter is passed to SavePrimitive. By default it is an empty string. It can be used to specify the Draw option in the code generated by SavePrimitive.

  The function is available via the object context menu.

Reimplemented from TObject.

SaveFillAttributes()

virtual void TAttFill::SaveFillAttributes ( std::ostream & out, const char * name, Int_t coldef = 1, Int_t stydef = 1001 )

virtualinherited

SaveLineAttributes()

virtual void TAttLine::SaveLineAttributes ( std::ostream & out, const char * name, Int_t coldef = 1, Int_t stydef = 1, Int_t widdef = 1 )

virtualinherited

SaveMarkerAttributes()

virtual void TAttMarker::SaveMarkerAttributes ( std::ostream & out, const char * name, Int_t coldef = 1, Int_t stydef = 1, Int_t sizdef = 1 )

virtualinherited

SavePrimitive()

void TH1::SavePrimitive ( std::ostream & out, Option_t * option = "" )

overridevirtualinherited

Save a primitive as a C++ statement(s) on output stream "out".

Reimplemented from TObject.

Reimplemented in TH2Poly, TProfile2D, TProfile3D, and TProfile.

SavePrimitiveConstructor()

void TObject::SavePrimitiveConstructor ( std::ostream & out, TClass * cl, const char * variable_name, const char * constructor_agrs = "", Bool_t empty_line = kTRUE )

staticprotectedinherited

Save object constructor in the output stream "out".

Can be used as first statement when implementing SavePrimitive() method for the object

Definition at line 777 of file TObject.cxx.

SavePrimitiveDraw()

void TObject::SavePrimitiveDraw ( std::ostream & out, const char * variable_name, Option_t * option = nullptr )

staticprotectedinherited

Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.

Definition at line 845 of file TObject.cxx.

SavePrimitiveFunctions()

void TH1::SavePrimitiveFunctions ( std::ostream & out, const char * varname, TList * lst )

staticinherited

SavePrimitiveHelp()

virtual void TH1::SavePrimitiveHelp ( std::ostream & out, const char * hname, Option_t * option = "" )

protectedvirtualinherited

SavePrimitiveNameTitle()

void TNamed::SavePrimitiveNameTitle ( std::ostream & out, const char * variable_name )

protectedinherited

Save object name and title into the output stream "out".

Definition at line 135 of file TNamed.cxx.

SavePrimitiveVector()

TString TObject::SavePrimitiveVector ( std::ostream & out, const char * prefix, Int_t len, Double_t * arr, Int_t flag = 0 )

staticprotectedinherited

Save array in the output stream "out" as vector.

Create unique variable name based on prefix value Returns name of vector which can be used in constructor or in other places of C++ code If flag === kTRUE, just add empty line If flag === 111, check if array is empty and return nullptr or <vectorname>.data()

Definition at line 796 of file TObject.cxx.

Scale()

virtual void TH1::Scale ( Double_t c1 = 1, Option_t * option = "" )

virtualinherited

Reimplemented in TH2Poly, TProfile2D, TProfile3D, and TProfile.

Set() [1/2]

void TArrayD::Set ( Int_t n )

overridevirtualinherited

Set size of this array to n doubles.

A new array is created, the old contents copied to the new array, then the old array is deleted. This function should not be called if the array was declared via Adopt.

Implements TArray.

Definition at line 105 of file TArrayD.cxx.

Set() [2/2]

void TArrayD::Set ( Int_t n, const Double_t * array )

inherited

Set size of this array to n doubles and set the contents This function should not be called if the array was declared via Adopt.

Definition at line 132 of file TArrayD.cxx.

SetAt()

void TArrayD::SetAt ( Double_t v, Int_t i )

inlineoverridevirtualinherited

Implements TArray.

Definition at line 51 of file TArrayD.h.

SetAxisColor()

void TH1::SetAxisColor ( Color_t color = 1, Option_t * axis = "X" )

virtualinherited

Set color to draw the axis line and tick marks.

axis specifies which axis ("x","y","z"), default = "x" if axis="xyz" set all 3 axes

Definition at line 187 of file Haxis.cxx.

SetAxisRange()

void TH1::SetAxisRange ( Double_t xmin, Double_t xmax, Option_t * axis = "X" )

virtualinherited

Set the "axis" range.

Definition at line 201 of file Haxis.cxx.

SetBarOffset()

virtual void TH1::SetBarOffset ( Float_t offset = 0.25 )

inlinevirtualinherited

Definition at line 612 of file TH1.h.

SetBarWidth()

virtual void TH1::SetBarWidth ( Float_t width = 0.5 )

inlinevirtualinherited

Definition at line 613 of file TH1.h.

SetBinContent() [1/3]

void TH2::SetBinContent ( Int_t bin, Double_t content )

overridevirtualinherited

Set bin content.

Reimplemented from TH1.

Reimplemented in TH2Poly.

Definition at line 2603 of file TH2.cxx.

SetBinContent() [2/3]

void TH2::SetBinContent ( Int_t binx, Int_t biny, Double_t content )

inlineoverridevirtualinherited

Reimplemented from TH1.

Reimplemented in TH2Poly.

Definition at line 128 of file TH2.h.

SetBinContent() [3/3]

void TH2::SetBinContent ( Int_t binx, Int_t biny, Int_t , Double_t content )

inlineoverridevirtualinherited

Reimplemented from TH1.

Reimplemented in TH2Poly.

Definition at line 129 of file TH2.h.

SetBinError() [1/3]

virtual void TH1::SetBinError ( Int_t bin, Double_t error )

virtualinherited

Reimplemented in TH2Poly.

SetBinError() [2/3]

virtual void TH1::SetBinError ( Int_t binx, Int_t biny, Double_t error )

virtualinherited

Reimplemented in TH2Poly.

SetBinError() [3/3]

virtual void TH1::SetBinError ( Int_t binx, Int_t biny, Int_t binz, Double_t error )

virtualinherited

Reimplemented in TH2Poly.

SetBinErrorOption()

virtual void TH1::SetBinErrorOption ( EBinErrorOpt type )

inlinevirtualinherited

Definition at line 629 of file TH1.h.

SetBins() [1/6]

virtual void TH1::SetBins ( Int_t nx, const Double_t * xBins )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

SetBins() [2/6]

virtual void TH1::SetBins ( Int_t nx, const Double_t * xBins, Int_t ny, const Double_t * yBins )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

SetBins() [3/6]

virtual void TH1::SetBins ( Int_t nx, const Double_t * xBins, Int_t ny, const Double_t * yBins, Int_t nz, const Double_t * zBins )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

SetBins() [4/6]

virtual void TH1::SetBins ( Int_t nx, Double_t xmin, Double_t xmax )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

SetBins() [5/6]

virtual void TH1::SetBins ( Int_t nx, Double_t xmin, Double_t xmax, Int_t ny, Double_t ymin, Double_t ymax )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

SetBins() [6/6]

virtual void TH1::SetBins ( Int_t nx, Double_t xmin, Double_t xmax, Int_t ny, Double_t ymin, Double_t ymax, Int_t nz, Double_t zmin, Double_t zmax )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

SetBinsLength()

void TH2D::SetBinsLength ( Int_t n = -1 )

overridevirtual

Set total number of bins including under/overflow Reallocate bin contents array.

Reimplemented from TH1.

Reimplemented in TProfile2D.

Definition at line 4238 of file TH2.cxx.

SetBit() [1/2]

void TObject::SetBit ( UInt_t f )

inlineinherited

Definition at line 202 of file TObject.h.

SetBit() [2/2]

void TObject::SetBit ( UInt_t f, Bool_t set )

inherited

Set or unset the user status bits as specified in f.

Definition at line 888 of file TObject.cxx.

SetBuffer()

virtual void TH1::SetBuffer ( Int_t bufsize, Option_t * option = "" )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

SetCanExtend()

virtual UInt_t TH1::SetCanExtend ( UInt_t extendBitMask )

virtualinherited

SetCellContent()

virtual void TH1::SetCellContent ( Int_t binx, Int_t biny, Double_t content )

inlinevirtualinherited

Definition at line 688 of file TH1.h.

SetCellError()

virtual void TH1::SetCellError ( Int_t binx, Int_t biny, Double_t content )

inlinevirtualinherited

Definition at line 690 of file TH1.h.

SetColors()

virtual void TH1::SetColors ( Color_t linecolor = -1, Color_t markercolor = -1, Color_t fillcolor = -1 )

virtualinherited

SetContent()

virtual void TH1::SetContent ( const Double_t * content )

virtualinherited

SetContour()

virtual void TH1::SetContour ( Int_t nlevels, const Double_t * levels = nullptr )

virtualinherited

SetContourLevel()

virtual void TH1::SetContourLevel ( Int_t level, Double_t value )

virtualinherited

SetDefaultBufferSize()

void TH1::SetDefaultBufferSize ( Int_t bufsize = 1000 )

staticinherited

SetDefaultSumw2()

void TH1::SetDefaultSumw2 ( Bool_t sumw2 = kTRUE )

staticinherited

SetDirectory()

virtual void TH1::SetDirectory ( TDirectory * dir )

virtualinherited

SetDrawOption()

void TObject::SetDrawOption ( Option_t * option = "" )

virtualinherited

Set drawing option for object.

This option only affects the drawing style and is stored in the option field of the TObjOptLink supporting a TPad's primitive list (TList). Note that it does not make sense to call object.SetDrawOption(option) before having called object.Draw().

Reimplemented in RooPlot, TAxis, TBrowser, TGedFrame, TGFrame, TPad, TPaveStats, TRootBrowserLite, TSystemDirectory, and TSystemFile.

Definition at line 871 of file TObject.cxx.

SetDtorOnly()

void TObject::SetDtorOnly ( void * obj )

staticinherited

Set destructor only flag.

Definition at line 1204 of file TObject.cxx.

SetEntries()

virtual void TH1::SetEntries ( Double_t n )

inlinevirtualinherited

Definition at line 639 of file TH1.h.

SetError()

virtual void TH1::SetError ( const Double_t * error )

virtualinherited

SetFillAttributes()

virtual void TAttFill::SetFillAttributes ( )

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

SetFillColor() [1/2]

virtual void TAttFill::SetFillColor ( Color_t fcolor )

inlinevirtualinherited

Set the fill area color.

Reimplemented in TGQuartz, TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSpider, TSVG, TTeXDump, and TVirtualX.

Definition at line 40 of file TAttFill.h.

SetFillColor() [2/2]

void TAttFill::SetFillColor ( TColorNumber )

inherited

SetFillColorAlpha()

virtual void TAttFill::SetFillColorAlpha ( Color_t fcolor, Float_t falpha )

virtualinherited

Reimplemented in TGraphMultiErrors.

SetFillStyle()

virtual void TAttFill::SetFillStyle ( Style_t fstyle )

inlinevirtualinherited

Set the fill area style.

Reimplemented in TGQuartz, TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, TGX11, TPad, TSpider, and TVirtualX.

Definition at line 42 of file TAttFill.h.

SetHighlight()

virtual void TH1::SetHighlight ( Bool_t set = kTRUE )

virtualinherited

SetLabelColor()

void TH1::SetLabelColor ( Color_t color = 1, Option_t * axis = "X" )

virtualinherited

Set axis labels color.

axis specifies which axis ("x","y","z"), default = "x" if axis="xyz" set all 3 axes

Definition at line 226 of file Haxis.cxx.

SetLabelFont()

void TH1::SetLabelFont ( Style_t font = 62, Option_t * axis = "X" )

virtualinherited

Set font number used to draw axis labels.

font : Text font code = 10*fontnumber + precision Font numbers must be between 1 and 14 precision = 1 fast hardware fonts (steps in the size) precision = 2 scalable and rotatable hardware fonts

The default font number is 62. axis specifies which axis ("x","y","z"), default = "x" if axis="xyz" set all 3 axes

Definition at line 249 of file Haxis.cxx.

SetLabelOffset()

void TH1::SetLabelOffset ( Float_t offset = 0.005, Option_t * axis = "X" )

virtualinherited

Set offset between axis and axis' labels.

The offset is expressed as a percent of the pad height. axis specifies which axis ("x","y","z"), default = "x" if axis="xyz" set all 3 axes

Definition at line 267 of file Haxis.cxx.

SetLabelSize()

void TH1::SetLabelSize ( Float_t size = 0.02, Option_t * axis = "X" )

virtualinherited

Set size of axis' labels.

The size is expressed as a percent of the pad height. axis specifies which axis ("x","y","z"), default = "x" if axis="xyz" set all 3 axes

Definition at line 285 of file Haxis.cxx.

SetLineAttributes()

virtual void TAttLine::SetLineAttributes ( )

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

SetLineColor() [1/2]

virtual void TAttLine::SetLineColor ( Color_t lcolor )

inlinevirtualinherited

Set the line color.

Reimplemented in ROOT::Experimental::REveLine, ROOT::Experimental::REveStraightLineSet, ROOT::Experimental::REveTrackList, TEveLine, TEveStraightLineSet, TEveTrackList, TGeoVolume, TGeoVolumeMulti, TGQuartz, TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, TGX11, TParallelCoordRange, TPDF, TPostScript, TSpider, TSVG, TTeXDump, and TVirtualX.

Definition at line 44 of file TAttLine.h.

SetLineColor() [2/2]

void TAttLine::SetLineColor ( TColorNumber lcolor )

inherited

SetLineColorAlpha()

virtual void TAttLine::SetLineColorAlpha ( Color_t lcolor, Float_t lalpha )

virtualinherited

Reimplemented in TGraphMultiErrors.

SetLineStyle()

virtual void TAttLine::SetLineStyle ( Style_t lstyle )

inlinevirtualinherited

Set the line style.

Reimplemented in ROOT::Experimental::REveLine, ROOT::Experimental::REveTrackList, TEveLine, TEveTrackList, TGeoVolume, TGeoVolumeMulti, TGQuartz, TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSpider, TSVG, TTeXDump, and TVirtualX.

Definition at line 46 of file TAttLine.h.

SetLineWidth()

virtual void TAttLine::SetLineWidth ( Width_t lwidth )

inlinevirtualinherited

Set the line width.

Reimplemented in ROOT::Experimental::REveLine, ROOT::Experimental::REveTrackList, TEveLine, TEveTrackList, TGeoVolume, TGeoVolumeMulti, TGQuartz, TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, TGX11, TPaletteAxis, TParallelCoordRange, TPDF, TPostScript, TSpider, TSVG, TTeXDump, and TVirtualX.

Definition at line 47 of file TAttLine.h.

SetMarkerAttributes()

virtual void TAttMarker::SetMarkerAttributes ( )

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

SetMarkerColor() [1/2]

virtual void TAttMarker::SetMarkerColor ( Color_t mcolor = 1 )

inlinevirtualinherited

Set the marker color.

Reimplemented in ROOT::Experimental::REveLine, ROOT::Experimental::REvePointSet, ROOT::Experimental::REvePointSetArray, ROOT::Experimental::REveTrackList, TEveLine, TEvePointSet, TEvePointSetArray, TEveTrackList, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSVG, TTeXDump, and TVirtualX.

Definition at line 41 of file TAttMarker.h.

SetMarkerColor() [2/2]

void TAttMarker::SetMarkerColor ( TColorNumber lcolor )

inherited

SetMarkerColorAlpha()

virtual void TAttMarker::SetMarkerColorAlpha ( Color_t mcolor, Float_t malpha )

virtualinherited

SetMarkerSize()

virtual void TAttMarker::SetMarkerSize ( Size_t msize = 1 )

inlinevirtualinherited

Set the marker size.

Note that the marker styles number 1 6 and 7 (the dots), cannot be scaled. They are meant to be very fast to draw and are always drawn with the same number of pixels; therefore this method does not apply on them.

Reimplemented in ROOT::Experimental::REvePointSet, ROOT::Experimental::REvePointSetArray, ROOT::Experimental::REveTrackList, TEvePointSet, TEvePointSetArray, TEveTrackList, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TTeXDump, and TVirtualX.

Definition at line 48 of file TAttMarker.h.

SetMarkerStyle()

virtual void TAttMarker::SetMarkerStyle ( Style_t mstyle = 1 )

inlinevirtualinherited

Set the marker style.

Reimplemented in ROOT::Experimental::REvePointSet, ROOT::Experimental::REvePointSetArray, ROOT::Experimental::REveTrackList, TEvePointSet, TEvePointSetArray, TEveTrackList, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, and TVirtualX.

Definition at line 43 of file TAttMarker.h.

SetMaximum()

virtual void TH1::SetMaximum ( Double_t maximum = -1111 )

inlinevirtualinherited

Definition at line 652 of file TH1.h.

SetMinimum()

virtual void TH1::SetMinimum ( Double_t minimum = -1111 )

inlinevirtualinherited

Definition at line 653 of file TH1.h.

SetName()

void TH1::SetName ( const char * name )

overridevirtualinherited

Set the name of the TNamed.

WARNING: if the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.

Reimplemented from TNamed.

SetNameTitle()

void TH1::SetNameTitle ( const char * name, const char * title )

overridevirtualinherited

Set all the TNamed parameters (name and title).

WARNING: if the name is changed and the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.

Reimplemented from TNamed.

SetNdivisions()

void TH1::SetNdivisions ( Int_t n = 510, Option_t * axis = "X" )

virtualinherited

Set the number of divisions to draw an axis.

ndiv : Number of divisions.

 n = N1 + 100*N2 + 10000*N3
 N1=number of primary divisions.
 N2=number of secondary divisions.
 N3=number of 3rd divisions.
     e.g.:
     nndi=0 --> no tick marks.
     nndi=2 --> 2 divisions, one tick mark in the middle
                of the axis.

axis specifies which axis ("x","y","z"), default = "x" if axis="xyz" set all 3 axes

Definition at line 170 of file Haxis.cxx.

SetNormFactor()

virtual void TH1::SetNormFactor ( Double_t factor = 1 )

inlinevirtualinherited

Definition at line 658 of file TH1.h.

SetObjectStat()

void TObject::SetObjectStat ( Bool_t stat )

staticinherited

Turn on/off tracking of objects in the TObjectTable.

Definition at line 1188 of file TObject.cxx.

SetOption()

virtual void TH1::SetOption ( Option_t * option = " " )

inlinevirtualinherited

Definition at line 660 of file TH1.h.

SetShowProjectionX()

void TH2::SetShowProjectionX ( Int_t nbins = 1 )

virtualinherited

When the mouse is moved in a pad containing a 2-d view of this histogram a second canvas shows the projection along X corresponding to the mouse position along Y.

To stop the generation of the projections, delete the canvas containing the projection.

Parameters

nbins

number of bins in Y to sum across for the projection

Definition at line 2621 of file TH2.cxx.

SetShowProjectionXY()

void TH2::SetShowProjectionXY ( Int_t nbinsY = 1, Int_t nbinsX = 1 )

virtualinherited

When the mouse is moved in a pad containing a 2-d view of this histogram two canvases show the projection along X and Y corresponding to the mouse position along Y and X, respectively.

To stop the generation of the projections, delete the canvas containing the projection.

Parameters

nbinsY	number of bins in Y to sum across for the x projection
nbinsX	number of bins in X to sum across for the y projection

Definition at line 2654 of file TH2.cxx.

SetShowProjectionY()

void TH2::SetShowProjectionY ( Int_t nbins = 1 )

virtualinherited

When the mouse is moved in a pad containing a 2-d view of this histogram a second canvas shows the projection along Y corresponding to the mouse position along X.

To stop the generation of the projections, delete the canvas containing the projection.

Parameters

nbins

number of bins in X to sum across for the projection

Definition at line 2637 of file TH2.cxx.

SetSliceContent()

template<typename ValueType>

void TH1::SetSliceContent ( const std::vector< Double_t > & values, const std::vector< std::pair< Int_t, Int_t > > & sliceEdges, ValueType * dataArray )

inlineprivateinherited

Sets the content of a slice of bins in a histogram.

This function allows setting the content of a slice of bins in a histogram by specifying the edges of the slice and the corresponding values to assign.

Template Parameters

ValueType

The type of the histogram's data.

Parameters

values	A vector of values to assign to the bins in the specified slice.
sliceEdges	A vector of pairs specifying the low and upper edges of the slice for each dimension.
dataArray	A pointer to the histogram's data array.

Definition at line 301 of file TH1.h.

SetStatOverflows()

void TH1::SetStatOverflows ( EStatOverflows statOverflows )

inlineinherited

See GetStatOverflows for more information.

Definition at line 665 of file TH1.h.

SetStats()

virtual void TH1::SetStats ( Bool_t stats = kTRUE )

virtualinherited

SetTickLength()

void TH1::SetTickLength ( Float_t length = 0.02, Option_t * axis = "X" )

virtualinherited

Set the axis' tick marks length.

axis specifies which axis ("x","y","z"), default = "x" if axis="xyz" set all 3 axes

Definition at line 302 of file Haxis.cxx.

SetTitle()

void TH1::SetTitle ( const char * title )

overridevirtualinherited

Set the title of the TNamed.

Reimplemented from TNamed.

SetTitleFont()

void TH1::SetTitleFont ( Style_t font = 62, Option_t * axis = "X" )

virtualinherited

Set the axis' title font.

• if axis =="x" set the X axis title font
• if axis =="y" set the Y axis title font
• if axis =="z" set the Z axis title font any other value of axis will set the pad title font

if axis="xyz" set all 3 axes

Definition at line 323 of file Haxis.cxx.

SetTitleOffset()

void TH1::SetTitleOffset ( Float_t offset = 1, Option_t * axis = "X" )

virtualinherited

Specify a parameter offset to control the distance between the axis and the axis' title.

• offset = 1 means : use the default distance
• offset = 1.2 means: the distance will be 1.2*(default distance)
• offset = 0.8 means: the distance will be 0.8*(default distance)

axis specifies which axis ("x","y","z"), default = "x" if axis="xyz" set all 3 axes

Definition at line 345 of file Haxis.cxx.

SetTitleSize()

void TH1::SetTitleSize ( Float_t size = 0.02, Option_t * axis = "X" )

virtualinherited

Set the axis' title size.

• if axis = "x" set the X axis title size
• if axis = "y" set the Y axis title size
• if axis = "z" set the Z axis title size

if axis ="xyz" set all 3 axes

Definition at line 365 of file Haxis.cxx.

SetUniqueID()

void TObject::SetUniqueID ( UInt_t uid )

virtualinherited

Set the unique object id.

Definition at line 899 of file TObject.cxx.

SetXTitle()

virtual void TH1::SetXTitle ( const char * title )

inlinevirtualinherited

Definition at line 667 of file TH1.h.

SetYTitle()

virtual void TH1::SetYTitle ( const char * title )

inlinevirtualinherited

Definition at line 668 of file TH1.h.

SetZTitle()

virtual void TH1::SetZTitle ( const char * title )

inlinevirtualinherited

Definition at line 669 of file TH1.h.

ShowBackground()

virtual TH1 * TH1::ShowBackground ( Int_t niter = 20, Option_t * option = "same" )

virtualinherited

ShowBackground2D()

TH1 * TH2::ShowBackground2D ( Int_t nIterX = 20, Int_t nIterY = 20, Option_t * option = "same" )

virtualinherited

This function calculates the background spectrum in this histogram.

The background is returned as a histogram.

Definition at line 2665 of file TH2.cxx.

ShowPeaks()

Int_t TH2::ShowPeaks ( Double_t sigma = 2, Option_t * option = "", Double_t threshold = 0.05 )

overridevirtualinherited

Interface to TSpectrum2::Search the function finds peaks in this histogram where the width is > sigma and the peak maximum greater than threshold*maximum bin content of this.

for more details see TSpectrum::Search. note the difference in the default value for option compared to TSpectrum2::Search option="" by default (instead of "goff")

Reimplemented from TH1.

Definition at line 2682 of file TH2.cxx.

size()

std::size_t TArray::size ( ) const

inlineinherited

Definition at line 50 of file TArray.h.

Sizeof()

Int_t TNamed::Sizeof ( ) const

virtualinherited

Return size of the TNamed part of the TObject.

Reimplemented in TDirectory, TDirectoryFile, TFile, TKey, TSQLFile, and TXMLFile.

Definition at line 182 of file TNamed.cxx.

SliceHistoInPlace()

template<typename ValueType>

void TH1::SliceHistoInPlace ( std::vector< Int_t > & args, ValueType *& dataArray, Int_t & fN )

inlineprivateinherited

Slices a histogram in place based on the specified bin ranges for each dimension.

This function modifies the histogram by extracting a sub-region defined by the provided bin ranges for each dimension. The resulting histogram will have updated bin counts, edges, and contents. Bin contents outside the range fall into the flow bins. The histogram's internal data array is freed and reallocated by this function. This function is used by the python implementation of the Unified Histogram Interface (UHI) for slicing.

Template Parameters

ValueType

The type of the histogram's data.

Parameters

args	A vector of integers specifying the low and upper edges of the slice for each dimension.
dataArray	A pointer to the histogram's data array.
fN	The size of dataArray.

Definition at line 206 of file TH1.h.

Smooth()

void TH2::Smooth ( Int_t ntimes = 1, Option_t * option = "" )

overridevirtualinherited

Smooth bin contents of this 2-d histogram using kernel algorithms similar to the ones used in the raster graphics community.

Bin contents in the active range are replaced by their smooth values. The algorithm retains the input dimension by using Kernel Crop at the input boundaries. Kernel Crop sets any pixel in the kernel that extends past the input to zero and adjusts the normalization accordingly. If Errors are defined via Sumw2, they are also scaled and computed. However, note the resulting errors will be correlated between different-bins, so the errors should not be used blindly to perform any calculation involving several bins, like fitting the histogram. One would need to compute also the bin by bin correlation matrix.

3 kernels are proposed k5a, k5b and k3a. k5a and k5b act on 5x5 cells (i-2,i-1,i,i+1,i+2, and same for j) k5b is a bit more stronger in smoothing k3a acts only on 3x3 cells (i-1,i,i+1, and same for j). By default the kernel "k5a" is used. You can select the kernels "k5b" or "k3a" via the option argument. If TAxis::SetRange has been called on the x or/and y axis, only the bins in the specified range are smoothed. In the current implementation if the first argument is not used (default value=1).

implementation by David McKee (dmcke.nosp@m.e@ba.nosp@m.ma.ua.nosp@m..edu). Extended by Rene Brun

Reimplemented from TH1.

Definition at line 2714 of file TH2.cxx.

SmoothArray()

void TH1::SmoothArray ( Int_t NN, Double_t * XX, Int_t ntimes = 1 )

staticinherited

StatOverflows()

void TH1::StatOverflows ( Bool_t flag = kTRUE )

staticinherited

Streamer()

void TH2D::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TH2D.

Reimplemented from TH2.

Reimplemented in TProfile2D.

Definition at line 4249 of file TH2.cxx.

StreamerNVirtual()

void TH2D::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 442 of file TH2.h.

Sumw2()

virtual void TH1::Sumw2 ( Bool_t flag = kTRUE )

virtualinherited

Reimplemented in TProfile2D, TProfile3D, and TProfile.

SysError()

void TObject::SysError ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue system error message.

Use "location" to specify the method where the system error occurred. Accepts standard printf formatting arguments.

Definition at line 1112 of file TObject.cxx.

TestBit()

Bool_t TObject::TestBit ( UInt_t f ) const

inlineinherited

Definition at line 204 of file TObject.h.

TestBits()

Int_t TObject::TestBits ( UInt_t f ) const

inlineinherited

Definition at line 205 of file TObject.h.

TransformHisto()

TH1 * TH1::TransformHisto ( TVirtualFFT * fft, TH1 * h_output, Option_t * option )

staticinherited

UpdateBinContent()

void TH2D::UpdateBinContent ( Int_t bin, Double_t content )

inlineoverrideprotectedvirtual

Raw update of bin content on internal data structure see convention for numbering bins in TH1::GetBin.

Implements TH1.

Definition at line 440 of file TH2.h.

UseCurrentStyle()

void TH1::UseCurrentStyle ( )

overridevirtualinherited

Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

Reimplemented from TObject.

Warning()

void TObject::Warning ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue warning message.

Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.

Definition at line 1084 of file TObject.cxx.

Write() [1/2]

Int_t TObject::Write ( const char * name = nullptr, Int_t option = 0, Int_t bufsize = 0 )

virtualinherited

Write this object to the current directory.

For more see the const version of this method.

Reimplemented in ROOT::TBufferMergerFile, TBuffer, TCollection, TDirectory, TDirectoryFile, TFile, TMap, TParallelMergingFile, TSQLFile, TTree, and TXMLFile.

Definition at line 989 of file TObject.cxx.

Write() [2/2]

Int_t TObject::Write ( const char * name = nullptr, Int_t option = 0, Int_t bufsize = 0 ) const

virtualinherited

Write this object to the current directory.

The data structure corresponding to this object is serialized. The corresponding buffer is written to the current directory with an associated key with name "name".

Writing an object to a file involves the following steps:

• Creation of a support TKey object in the current directory. The TKey object creates a TBuffer object.
• The TBuffer object is filled via the class::Streamer function.
• If the file is compressed (default) a second buffer is created to hold the compressed buffer.
• Reservation of the corresponding space in the file by looking in the TFree list of free blocks of the file.
• The buffer is written to the file.

Bufsize can be given to force a given buffer size to write this object. By default, the buffersize will be taken from the average buffer size of all objects written to the current file so far.

If a name is specified, it will be the name of the key. If name is not given, the name of the key will be the name as returned by GetName().

The option can be a combination of: kSingleKey, kOverwrite or kWriteDelete Using the kOverwrite option a previous key with the same name is overwritten. The previous key is deleted before writing the new object. Using the kWriteDelete option a previous key with the same name is deleted only after the new object has been written. This option is safer than kOverwrite but it is slower. NOTE: Neither kOverwrite nor kWriteDelete reduces the size of a TFile– the space is simply freed up to be overwritten; in the case of a TTree, it is more complicated. If one opens a TTree, appends some entries, then writes it out, the behaviour is effectively the same. If, however, one creates a new TTree and writes it out in this way, only the metadata is replaced, effectively making the old data invisible without deleting it. TTree::Delete() can be used to mark all disk space occupied by a TTree as free before overwriting its metadata this way. The kSingleKey option is only used by TCollection::Write() to write a container with a single key instead of each object in the container with its own key.

An object is read from the file into memory via TKey::Read() or via TObject::Read().

The function returns the total number of bytes written to the file. It returns 0 if the object cannot be written.

Reimplemented in TBuffer, TCollection, TDirectory, TDirectoryFile, TFile, TMap, TParallelMergingFile, TSQLFile, TTree, and TXMLFile.

Definition at line 964 of file TObject.cxx.

WriteArray()

void TArray::WriteArray ( TBuffer & b, const TArray * a )

staticinherited

Write TArray object to buffer.

Simplified version of TBuffer::WriteObject (does not keep track of multiple references to the same array).

Definition at line 81 of file TArray.cxx.

Friends And Related Symbol Documentation

operator* [1/3]

TH2D operator* ( Float_t c1, TH2D const & h1 )

friend

Operator *.

Definition at line 4297 of file TH2.cxx.

operator* [2/3]

TH2D operator* ( TH2D const & h1, Float_t c1 )

friend

Definition at line 446 of file TH2.h.

operator* [3/3]

TH2D operator* ( TH2D const & h1, TH2D const & h2 )

friend

Operator *.

Definition at line 4333 of file TH2.cxx.

operator+

TH2D operator+ ( TH2D const & h1, TH2D const & h2 )

friend

Operator +.

Definition at line 4309 of file TH2.cxx.

operator-

TH2D operator- ( TH2D const & h1, TH2D const & h2 )

friend

Operator -.

Definition at line 4321 of file TH2.cxx.

operator/

TH2D operator/ ( TH2D const & h1, TH2D const & h2 )

friend

Operator /.

Definition at line 4345 of file TH2.cxx.

Member Data Documentation

fArray

Double_t* TArrayD::fArray

inherited

Definition at line 30 of file TArrayD.h.

fBarOffset

Short_t TH1::fBarOffset

protectedinherited

(1000*offset) for bar charts or legos

Definition at line 154 of file TH1.h.

fBarWidth

Short_t TH1::fBarWidth

protectedinherited

(1000*width) for bar charts or legos

Definition at line 155 of file TH1.h.

fBinStatErrOpt

EBinErrorOpt TH1::fBinStatErrOpt

protectedinherited

Option for bin statistical errors.

Definition at line 174 of file TH1.h.

fBits

UInt_t TObject::fBits

privateinherited

bit field status word

Definition at line 47 of file TObject.h.

fBuffer

Double_t* TH1::fBuffer

protectedinherited

[fBufferSize] entry buffer

Definition at line 169 of file TH1.h.

fBufferSize

Int_t TH1::fBufferSize

protectedinherited

fBuffer size

Definition at line 168 of file TH1.h.

fContour

TArrayD TH1::fContour

protectedinherited

Array to display contour levels.

Definition at line 164 of file TH1.h.

fDimension

Int_t TH1::fDimension

protectedinherited

! Histogram dimension (1, 2 or 3 dim)

Definition at line 171 of file TH1.h.

fDirectory

TDirectory* TH1::fDirectory

protectedinherited

! Pointer to directory holding this histogram

Definition at line 170 of file TH1.h.

fEntries

Double_t TH1::fEntries

protectedinherited

Number of entries.

Definition at line 156 of file TH1.h.

fFillColor

Color_t TAttFill::fFillColor

protectedinherited

Fill area color.

Definition at line 24 of file TAttFill.h.

fFillStyle

Style_t TAttFill::fFillStyle

protectedinherited

Fill area style.

Definition at line 25 of file TAttFill.h.

fFunctions

TList* TH1::fFunctions

protectedinherited

->Pointer to list of functions (fits and user)

Definition at line 167 of file TH1.h.

fgAddDirectory

Bool_t TH1::fgAddDirectory = kTRUE

staticprotectedinherited

! Flag to add histograms to the directory

Definition at line 177 of file TH1.h.

fgBufferSize

Int_t TH1::fgBufferSize = 1000

staticprotectedinherited

! Default buffer size for automatic histograms

Definition at line 176 of file TH1.h.

fgDefaultSumw2

Bool_t TH1::fgDefaultSumw2 = kFALSE

staticprotectedinherited

! Flag to call TH1::Sumw2 automatically at histogram creation time

Definition at line 179 of file TH1.h.

fgDtorOnly

Longptr_t TObject::fgDtorOnly = 0

staticprivateinherited

object for which to call dtor only (i.e. no delete)

Definition at line 49 of file TObject.h.

fgObjectStat

Bool_t TObject::fgObjectStat = kTRUE

staticprivateinherited

if true keep track of objects in TObjectTable

Definition at line 50 of file TObject.h.

fgStatOverflows

Bool_t TH1::fgStatOverflows = kFALSE

staticprotectedinherited

! Flag to use under/overflows in statistics

Definition at line 178 of file TH1.h.

fIntegral

Double_t* TH1::fIntegral

protectedinherited

! Integral of bins used by GetRandom

Definition at line 172 of file TH1.h.

fLineColor

Color_t TAttLine::fLineColor

protectedinherited

Line color.

Definition at line 24 of file TAttLine.h.

fLineStyle

Style_t TAttLine::fLineStyle

protectedinherited

Line style.

Definition at line 25 of file TAttLine.h.

fLineWidth

Width_t TAttLine::fLineWidth

protectedinherited

Line width.

Definition at line 26 of file TAttLine.h.

fMarkerColor

Color_t TAttMarker::fMarkerColor

protectedinherited

Marker color.

Definition at line 24 of file TAttMarker.h.

fMarkerSize

Size_t TAttMarker::fMarkerSize

protectedinherited

Marker size.

Definition at line 26 of file TAttMarker.h.

fMarkerStyle

Style_t TAttMarker::fMarkerStyle

protectedinherited

Marker style.

Definition at line 25 of file TAttMarker.h.

fMaximum

Double_t TH1::fMaximum

protectedinherited

Maximum value for plotting.

Definition at line 161 of file TH1.h.

fMinimum

Double_t TH1::fMinimum

protectedinherited

Minimum value for plotting.

Definition at line 162 of file TH1.h.

fN

Int_t TArray::fN

inherited

Definition at line 38 of file TArray.h.

fName

TString TNamed::fName

protectedinherited

Definition at line 32 of file TNamed.h.

fNcells

Int_t TH1::fNcells

protectedinherited

Number of bins(1D), cells (2D) +U/Overflows.

Definition at line 150 of file TH1.h.

fNormFactor

Double_t TH1::fNormFactor

protectedinherited

Normalization factor.

Definition at line 163 of file TH1.h.

fOption

TString TH1::fOption

protectedinherited

Histogram options.

Definition at line 166 of file TH1.h.

fPainter

TVirtualHistPainter* TH1::fPainter

protectedinherited

! Pointer to histogram painter

Definition at line 173 of file TH1.h.

fScalefactor

Double_t TH2::fScalefactor

protectedinherited

Scale factor.

Definition at line 33 of file TH2.h.

fStatOverflows

EStatOverflows TH1::fStatOverflows

protectedinherited

Per object flag to use under/overflows in statistics.

Definition at line 175 of file TH1.h.

fSumw2

TArrayD TH1::fSumw2

protectedinherited

Array of sum of squares of weights.

Definition at line 165 of file TH1.h.

fTitle

TString TNamed::fTitle

protectedinherited

Definition at line 33 of file TNamed.h.

fTsumw

Double_t TH1::fTsumw

protectedinherited

Total Sum of weights.

Definition at line 157 of file TH1.h.

fTsumw2

Double_t TH1::fTsumw2

protectedinherited

Total Sum of squares of weights.

Definition at line 158 of file TH1.h.

fTsumwx

Double_t TH1::fTsumwx

protectedinherited

Total Sum of weight*X.

Definition at line 159 of file TH1.h.

fTsumwx2

Double_t TH1::fTsumwx2

protectedinherited

Total Sum of weight*X*X.

Definition at line 160 of file TH1.h.

fTsumwxy

Double_t TH2::fTsumwxy

protectedinherited

Total Sum of weight*X*Y.

Definition at line 36 of file TH2.h.

fTsumwy

Double_t TH2::fTsumwy

protectedinherited

Total Sum of weight*Y.

Definition at line 34 of file TH2.h.

fTsumwy2

Double_t TH2::fTsumwy2

protectedinherited

Total Sum of weight*Y*Y.

Definition at line 35 of file TH2.h.

fUniqueID

UInt_t TObject::fUniqueID

privateinherited

object unique identifier

Definition at line 46 of file TObject.h.

fXaxis

TAxis TH1::fXaxis

protectedinherited

X axis descriptor.

Definition at line 151 of file TH1.h.

fYaxis

TAxis TH1::fYaxis

protectedinherited

Y axis descriptor.

Definition at line 152 of file TH1.h.

fZaxis

TAxis TH1::fZaxis

protectedinherited

Z axis descriptor.

Definition at line 153 of file TH1.h.