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TH2I Class Reference

2-D histogram with an int per channel (see TH1 documentation)

Definition at line 225 of file TH2.h.

Public Member Functions

 TH2I ()
 Constructor.
 
 TH2I (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)
 
 TH2I (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)
 
 TH2I (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)
 
 TH2I (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)
 
 TH2I (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)
 
 TH2I (const TH2I &h2i)
 Copy constructor.
 
 ~TH2I () override
 Destructor.
 
void AddBinContent (Int_t bin) override
 Increment bin content by 1.
 
void AddBinContent (Int_t bin, Double_t w) override
 Increment bin content by w.
 
void AddBinContent (Int_t binx, Int_t biny) override
 Increment 2D bin content by 1.
 
void AddBinContent (Int_t binx, Int_t biny, Double_t w) override
 Increment 2D bin content by a weight w.
 
void Copy (TObject &hnew) const override
 Copy.
 
TClassIsA () const override
 
TH2Ioperator= (const TH2I &h1)
 Operator =.
 
void Reset (Option_t *option="") override
 Reset this histogram: contents, errors, etc.
 
void SetBinsLength (Int_t n=-1) override
 Set total number of bins including under/overflow Reallocate bin contents array.
 
void Streamer (TBuffer &) override
 Stream an object of class TH2.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TH2
 ~TH2 () override
 Destructor.
 
Int_t BufferEmpty (Int_t action=0) override
 Fill histogram with all entries in the buffer.
 
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.
 
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
 Fill this histogram with an array x and weights w.
 
void FillRandom (const char *fname, Int_t ntimes=5000, TRandom *rng=nullptr) override
 Fill histogram following distribution in function fname.
 
void FillRandom (TH1 *h, Int_t ntimes=5000, TRandom *rng=nullptr) override
 Fill histogram following distribution in histogram h.
 
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.
 
Int_t GetBin (Int_t binx, Int_t biny, Int_t binz=0) const override
 Return Global bin number corresponding to binx,y,z.
 
virtual Double_t GetBinContent (Int_t bin) const
 Return content of bin number bin.
 
virtual Double_t GetBinContent (Int_t bin, Int_t) const
 
virtual Double_t GetBinContent (Int_t bin, Int_t, Int_t) 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 GetBinErrorLow (Int_t bin) const
 Return lower error associated to bin number bin.
 
virtual Double_t GetBinErrorLow (Int_t binx, Int_t biny)
 
virtual Double_t GetBinErrorUp (Int_t bin) const
 Return upper error associated to bin number bin.
 
virtual Double_t GetBinErrorUp (Int_t binx, Int_t biny)
 
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 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.
 
virtual void GetRandom2 (Double_t &x, Double_t &y, TRandom *rng=nullptr)
 Return 2 random numbers along axis x and y distributed according to the cell-contents of this 2-D histogram.
 
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 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
 
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.
 
TProfileProfileX (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.
 
TProfileProfileY (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.
 
TH1DProjectionX (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.
 
TH1DProjectionY (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.
 
void PutStats (Double_t *stats) override
 Replace current statistics with the values in array stats.
 
TH1DQuantilesX (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.
 
TH1DQuantilesY (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.
 
TH2Rebin (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 TH2Rebin2D (Int_t nxgroup=2, Int_t nygroup=2, const char *newname="")
 Rebin this histogram grouping nxgroup/nygroup bins along the xaxis/yaxis together.
 
TH2RebinX (Int_t ngroup=2, const char *newname="") override
 Rebin only the X axis see Rebin2D.
 
virtual TH2RebinY (Int_t ngroup=2, const char *newname="")
 Rebin only the Y axis see Rebin2D.
 
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 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.
 
TH1ShowBackground (Int_t niter=20, Option_t *option="same") override
 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.
 
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 StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TH1
 ~TH1 () override
 Histogram default destructor.
 
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.
 
virtual Double_t AndersonDarlingTest (const TH1 *h2, Double_t &advalue) const
 Same function as above but returning also the test statistic value.
 
virtual Double_t AndersonDarlingTest (const TH1 *h2, Option_t *option="") const
 Statistical test of compatibility in shape between this histogram and h2, using the Anderson-Darling 2 sample test.
 
void Browse (TBrowser *b) override
 Browse the Histogram object.
 
virtual Bool_t CanExtendAllAxes () const
 Returns true if all axes are extendable.
 
virtual Double_t Chi2Test (const TH1 *h2, Option_t *option="UU", Double_t *res=nullptr) const
 \( \chi^{2} \) test for comparing weighted and unweighted histograms.
 
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
 The computation routine of the Chisquare test.
 
virtual Double_t Chisquare (TF1 *f1, Option_t *option="") const
 Compute and return the chisquare of this histogram with respect to a function The chisquare is computed by weighting each histogram point by the bin error By default the full range of the histogram is used.
 
virtual void ClearUnderflowAndOverflow ()
 Remove all the content from the underflow and overflow bins, without changing the number of entries After calling this method, every undeflow and overflow bins will have content 0.0 The Sumw2 is also cleared, since there is no more content in the bins.
 
TObjectClone (const char *newname="") const override
 Make a complete copy of the underlying object.
 
virtual Double_t ComputeIntegral (Bool_t onlyPositive=false)
 Compute integral (normalized cumulative sum of bins) w/o under/overflows The result is stored in fIntegral and used by the GetRandom functions.
 
virtual void DirectoryAutoAdd (TDirectory *)
 Perform the automatic addition of the histogram to the given directory.
 
Int_t DistancetoPrimitive (Int_t px, Int_t py) override
 Compute distance from point px,py to a line.
 
virtual Bool_t Divide (const TH1 *h1)
 Divide this histogram by h1.
 
virtual Bool_t Divide (const TH1 *h1, const TH1 *h2, Double_t c1=1, Double_t c2=1, Option_t *option="")
 Replace contents of this histogram by the division of h1 by h2.
 
virtual Bool_t Divide (TF1 *f1, Double_t c1=1)
 Performs the operation: this = this/(c1*f1) if errors are defined (see TH1::Sumw2), errors are also recalculated.
 
void Draw (Option_t *option="") override
 Draw this histogram with options.
 
virtual TH1DrawCopy (Option_t *option="", const char *name_postfix="_copy") const
 Copy this histogram and Draw in the current pad.
 
virtual TH1DrawNormalized (Option_t *option="", Double_t norm=1) const
 Draw a normalized copy of this histogram.
 
virtual void DrawPanel ()
 Display a panel with all histogram drawing options.
 
virtual void Eval (TF1 *f1, Option_t *option="")
 Evaluate function f1 at the center of bins of this histogram.
 
void ExecuteEvent (Int_t event, Int_t px, Int_t py) override
 Execute action corresponding to one event.
 
virtual void ExtendAxis (Double_t x, TAxis *axis)
 Histogram is resized along axis such that x is in the axis range.
 
virtual TH1FFT (TH1 *h_output, Option_t *option)
 This function allows to do discrete Fourier transforms of TH1 and TH2.
 
virtual Int_t FindBin (Double_t x, Double_t y=0, Double_t z=0)
 Return Global bin number corresponding to x,y,z.
 
virtual Int_t FindFirstBinAbove (Double_t threshold=0, Int_t axis=1, Int_t firstBin=1, Int_t lastBin=-1) const
 Find first bin with content > threshold for axis (1=x, 2=y, 3=z) if no bins with content > threshold is found the function returns -1.
 
virtual Int_t FindFixBin (Double_t x, Double_t y=0, Double_t z=0) const
 Return Global bin number corresponding to x,y,z.
 
virtual Int_t FindLastBinAbove (Double_t threshold=0, Int_t axis=1, Int_t firstBin=1, Int_t lastBin=-1) const
 Find last bin with content > threshold for axis (1=x, 2=y, 3=z) if no bins with content > threshold is found the function returns -1.
 
TObjectFindObject (const char *name) const override
 Search object named name in the list of functions.
 
TObjectFindObject (const TObject *obj) const override
 Search object obj in the list of functions.
 
virtual TFitResultPtr Fit (const char *formula, Option_t *option="", Option_t *goption="", Double_t xmin=0, Double_t xmax=0)
 Fit histogram with function fname.
 
virtual TFitResultPtr Fit (TF1 *f1, Option_t *option="", Option_t *goption="", Double_t xmin=0, Double_t xmax=0)
 Fit histogram with the function pointer f1.
 
virtual void FitPanel ()
 Display a panel with all histogram fit options.
 
TH1GetAsymmetry (TH1 *h2, Double_t c2=1, Double_t dc2=0)
 Return a histogram containing the asymmetry of this histogram with h2, where the asymmetry is defined as:
 
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
 
virtual Double_t GetBinCenter (Int_t bin) const
 Return bin center for 1D histogram.
 
virtual Double_t GetBinError (Int_t bin) const
 Return value of error associated to bin number bin.
 
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 EBinErrorOpt GetBinErrorOption () const
 
virtual Double_t GetBinLowEdge (Int_t bin) const
 Return bin lower edge for 1D histogram.
 
virtual Double_t GetBinWidth (Int_t bin) const
 Return bin width for 1D histogram.
 
virtual Double_t GetBinWithContent (Double_t c, Int_t &binx, Int_t firstx=0, Int_t lastx=0, Double_t maxdiff=0) const
 Compute first binx in the range [firstx,lastx] for which diff = abs(bin_content-c) <= maxdiff.
 
virtual void GetBinXYZ (Int_t binglobal, Int_t &binx, Int_t &biny, Int_t &binz) const
 Return binx, biny, binz corresponding to the global bin number globalbin see TH1::GetBin function above.
 
const Double_tGetBuffer () 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
 Fill array with center of bins for 1D histogram Better to use h1.GetXaxis()->GetCenter(center)
 
virtual Int_t GetContour (Double_t *levels=nullptr)
 Return contour values into array levels if pointer levels is non zero.
 
virtual Double_t GetContourLevel (Int_t level) const
 Return value of contour number level.
 
virtual Double_t GetContourLevelPad (Int_t level) const
 Return the value of contour number "level" in Pad coordinates.
 
TH1GetCumulative (Bool_t forward=kTRUE, const char *suffix="_cumulative") const
 Return a pointer to a histogram containing the cumulative content.
 
virtual Int_t GetDimension () const
 
TDirectoryGetDirectory () const
 
virtual Double_t GetEffectiveEntries () const
 Number of effective entries of the histogram.
 
virtual Double_t GetEntries () const
 Return the current number of entries.
 
virtual TF1GetFunction (const char *name) const
 Return pointer to function with name.
 
virtual Double_tGetIntegral ()
 Return a pointer to the array of bins integral.
 
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.
 
TListGetListOfFunctions () const
 
virtual void GetLowEdge (Double_t *edge) const
 Fill array with low edge of bins for 1D histogram Better to use h1.GetXaxis()->GetLowEdge(edge)
 
virtual Double_t GetMaximum (Double_t maxval=FLT_MAX) const
 Return maximum value smaller than maxval of bins in the range, unless the value has been overridden by TH1::SetMaximum, in which case it returns that value.
 
virtual Int_t GetMaximumBin () const
 Return location of bin with maximum value in the range.
 
virtual Int_t GetMaximumBin (Int_t &locmax, Int_t &locmay, Int_t &locmaz) const
 Return location of bin with maximum value in the range.
 
virtual Double_t GetMaximumStored () const
 
virtual Double_t GetMean (Int_t axis=1) const
 For axis = 1,2 or 3 returns the mean value of the histogram along X,Y or Z axis.
 
virtual Double_t GetMeanError (Int_t axis=1) const
 Return standard error of mean of this histogram along the X axis.
 
virtual Double_t GetMinimum (Double_t minval=-FLT_MAX) const
 Return minimum value larger than minval of bins in the range, unless the value has been overridden by TH1::SetMinimum, in which case it returns that value.
 
virtual void GetMinimumAndMaximum (Double_t &min, Double_t &max) const
 Retrieve the minimum and maximum values in the histogram.
 
virtual Int_t GetMinimumBin () const
 Return location of bin with minimum value in the range.
 
virtual Int_t GetMinimumBin (Int_t &locmix, Int_t &locmiy, Int_t &locmiz) const
 Return location of bin with minimum value in the range.
 
virtual Double_t GetMinimumStored () const
 
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
 Redefines TObject::GetObjectInfo.
 
Option_tGetOption () const override
 
TVirtualHistPainterGetPainter (Option_t *option="")
 Return pointer to painter.
 
virtual Int_t GetQuantiles (Int_t nprobSum, Double_t *q, const Double_t *probSum=nullptr)
 Compute Quantiles for this histogram Quantile x_q of a probability distribution Function F is defined as.
 
virtual Double_t GetRandom (TRandom *rng=nullptr) const
 Return a random number distributed according the histogram bin contents.
 
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
 
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.
 
virtual Double_t GetStdDev (Int_t axis=1) const
 Returns the Standard Deviation (Sigma).
 
virtual Double_t GetStdDevError (Int_t axis=1) const
 Return error of standard deviation estimation for Normal distribution.
 
virtual Double_t GetSumOfWeights () const
 Return the sum of weights excluding under/overflows.
 
virtual TArrayDGetSumw2 ()
 
virtual const TArrayDGetSumw2 () const
 
virtual Int_t GetSumw2N () const
 
virtual Float_t GetTickLength (Option_t *axis="X") const
 Return the "axis" tick length.
 
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.
 
TAxisGetXaxis ()
 
const TAxisGetXaxis () const
 
TAxisGetYaxis ()
 
const TAxisGetYaxis () const
 
TAxisGetZaxis ()
 
const TAxisGetZaxis () const
 
Bool_t IsBinOverflow (Int_t bin, Int_t axis=0) const
 Return true if the bin is overflow.
 
Bool_t IsBinUnderflow (Int_t bin, Int_t axis=0) const
 Return true if the bin is underflow.
 
virtual Bool_t IsHighlight () const
 
virtual void LabelsDeflate (Option_t *axis="X")
 Reduce the number of bins for the axis passed in the option to the number of bins having a label.
 
virtual void LabelsInflate (Option_t *axis="X")
 Double the number of bins for axis.
 
virtual void LabelsOption (Option_t *option="h", Option_t *axis="X")
 Sort bins with labels or set option(s) to draw axis with labels.
 
virtual Long64_t Merge (TCollection *list)
 
Long64_t Merge (TCollection *list, Option_t *option)
 Add all histograms in the collection to this histogram.
 
virtual Bool_t Multiply (const TH1 *h1)
 Multiply this histogram by h1.
 
virtual Bool_t Multiply (const TH1 *h1, const TH1 *h2, Double_t c1=1, Double_t c2=1, Option_t *option="")
 Replace contents of this histogram by multiplication of h1 by h2.
 
virtual Bool_t Multiply (TF1 *f1, Double_t c1=1)
 Performs the operation:
 
void Paint (Option_t *option="") override
 Control routine to paint any kind of histograms.
 
void Print (Option_t *option="") const override
 Print some global quantities for this histogram.
 
virtual void RebinAxis (Double_t x, TAxis *axis)
 
virtual void Rebuild (Option_t *option="")
 Using the current bin info, recompute the arrays for contents and errors.
 
void RecursiveRemove (TObject *obj) override
 Recursively remove object from the list of functions.
 
virtual void ResetStats ()
 Reset the statistics including the number of entries and replace with values calculated from bin content.
 
void SaveAs (const char *filename="hist", Option_t *option="") const override
 Save the histogram as .csv, .tsv or .txt.
 
void SavePrimitive (std::ostream &out, Option_t *option="") override
 Save primitive as a C++ statement(s) on output stream out.
 
virtual void Scale (Double_t c1=1, Option_t *option="")
 Multiply this histogram by a constant c1.
 
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)
 Set the bar offset as fraction of the bin width for drawing mode "B".
 
virtual void SetBarWidth (Float_t width=0.5)
 Set the width of bars as fraction of the bin width for drawing mode "B".
 
virtual void SetBinError (Int_t bin, Double_t error)
 Set the bin Error Note that this resets the bin eror option to be of Normal Type and for the non-empty bin the bin error is set by default to the square root of their content.
 
virtual void SetBinError (Int_t binx, Int_t biny, Double_t error)
 See convention for numbering bins in TH1::GetBin.
 
virtual void SetBinError (Int_t binx, Int_t biny, Int_t binz, Double_t error)
 See convention for numbering bins in TH1::GetBin.
 
virtual void SetBinErrorOption (EBinErrorOpt type)
 
virtual void SetBins (Int_t nx, const Double_t *xBins)
 Redefine x axis parameters with variable bin sizes.
 
virtual void SetBins (Int_t nx, const Double_t *xBins, Int_t ny, const Double_t *yBins)
 Redefine x and y axis parameters with variable bin sizes.
 
virtual void SetBins (Int_t nx, const Double_t *xBins, Int_t ny, const Double_t *yBins, Int_t nz, const Double_t *zBins)
 Redefine x, y and z axis parameters with variable bin sizes.
 
virtual void SetBins (Int_t nx, Double_t xmin, Double_t xmax)
 Redefine x axis parameters.
 
virtual void SetBins (Int_t nx, Double_t xmin, Double_t xmax, Int_t ny, Double_t ymin, Double_t ymax)
 Redefine x and y axis parameters.
 
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)
 Redefine x, y and z axis parameters.
 
virtual void SetBuffer (Int_t buffersize, Option_t *option="")
 Set the maximum number of entries to be kept in the buffer.
 
virtual UInt_t SetCanExtend (UInt_t extendBitMask)
 Make the histogram axes extendable / not extendable according to the bit mask returns the previous bit mask specifying which axes are extendable.
 
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)
 Shortcut to set the three histogram colors with a single call.
 
virtual void SetContent (const Double_t *content)
 Replace bin contents by the contents of array content.
 
virtual void SetContour (Int_t nlevels, const Double_t *levels=nullptr)
 Set the number and values of contour levels.
 
virtual void SetContourLevel (Int_t level, Double_t value)
 Set value for one contour level.
 
virtual void SetDirectory (TDirectory *dir)
 By default, when a histogram is created, it is added to the list of histogram objects in the current directory in memory.
 
virtual void SetEntries (Double_t n)
 
virtual void SetError (const Double_t *error)
 Replace bin errors by values in array error.
 
virtual void SetHighlight (Bool_t set=kTRUE)
 Set highlight (enable/disable) mode for the histogram by default highlight mode is disable.
 
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 SetMaximum (Double_t maximum=-1111)
 
virtual void SetMinimum (Double_t minimum=-1111)
 
void SetName (const char *name) override
 Change the name of this histogram.
 
void SetNameTitle (const char *name, const char *title) override
 Change the name and title of this histogram.
 
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=" ")
 
void SetStatOverflows (EStatOverflows statOverflows)
 See GetStatOverflows for more information.
 
virtual void SetStats (Bool_t stats=kTRUE)
 Set statistics option on/off.
 
virtual void SetTickLength (Float_t length=0.02, Option_t *axis="X")
 Set the axis' tick marks length.
 
void SetTitle (const char *title) override
 Change/set the title.
 
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 SetXTitle (const char *title)
 
virtual void SetYTitle (const char *title)
 
virtual void SetZTitle (const char *title)
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
virtual void Sumw2 (Bool_t flag=kTRUE)
 Create structure to store sum of squares of weights.
 
void UseCurrentStyle () override
 Copy current attributes from/to current style.
 
- Public Member Functions inherited from TNamed
 TNamed ()
 
 TNamed (const char *name, const char *title)
 
 TNamed (const TNamed &named)
 TNamed copy ctor.
 
 TNamed (const TString &name, const TString &title)
 
virtual ~TNamed ()
 TNamed destructor.
 
void Clear (Option_t *option="") override
 Set name and title to empty strings ("").
 
TObjectClone (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.
 
void Copy (TObject &named) const override
 Copy this to obj.
 
virtual void FillBuffer (char *&buffer)
 Encode TNamed into output buffer.
 
const char * GetName () const override
 Returns name of object.
 
const char * GetTitle () const override
 Returns title of object.
 
ULong_t Hash () const override
 Return hash value for this object.
 
TClassIsA () const override
 
Bool_t IsSortable () const override
 
void ls (Option_t *option="") const override
 List TNamed name and title.
 
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator.
 
void Print (Option_t *option="") const override
 Print TNamed name and title.
 
virtual Int_t Sizeof () const
 Return size of the TNamed part of the TObject.
 
void Streamer (TBuffer &) override
 Stream an object of class TObject.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor.
 
 TObject (const TObject &object)
 TObject copy ctor.
 
virtual ~TObject ()
 TObject destructor.
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract.
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad.
 
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 const char * ClassName () const
 Returns name of class to which the object belongs.
 
virtual void Delete (Option_t *option="")
 Delete this object.
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs.
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
 
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 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.
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message.
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object.
 
virtual const char * GetIconName () const
 Returns mime type name of object.
 
virtual UInt_t GetUniqueID () const
 Return the unique object id.
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out.
 
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.
 
void InvertBit (UInt_t f)
 
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).
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
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 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 *ptr)
 Operator delete.
 
void operator delete (void *ptr, void *vp)
 Only called by placement new when throwing an exception.
 
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)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator.
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list.
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory.
 
void ResetBit (UInt_t f)
 
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 SetDrawOption (Option_t *option="")
 Set drawing option for object.
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message.
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
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.
 
- Public Member Functions inherited from TAttLine
 TAttLine ()
 AttLine default constructor.
 
 TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth)
 AttLine normal constructor.
 
virtual ~TAttLine ()
 AttLine destructor.
 
void Copy (TAttLine &attline) const
 Copy this line attributes to a new TAttLine.
 
Int_t DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)
 Compute distance from point px,py to a line.
 
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.
 
virtual void Modify ()
 Change current line attributes if necessary.
 
virtual void ResetAttLine (Option_t *option="")
 Reset this line attributes to default values.
 
virtual void SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)
 Save line attributes as C++ statement(s) on output stream out.
 
virtual void SetLineAttributes ()
 Invoke the DialogCanvas Line attributes.
 
virtual void SetLineColor (Color_t lcolor)
 Set the line color.
 
virtual void SetLineColorAlpha (Color_t lcolor, Float_t lalpha)
 Set a transparent line color.
 
virtual void SetLineStyle (Style_t lstyle)
 Set the line style.
 
virtual void SetLineWidth (Width_t lwidth)
 Set the line width.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TAttFill
 TAttFill ()
 AttFill default constructor.
 
 TAttFill (Color_t fcolor, Style_t fstyle)
 AttFill normal constructor.
 
virtual ~TAttFill ()
 AttFill destructor.
 
void Copy (TAttFill &attfill) const
 Copy this fill attributes to a new TAttFill.
 
virtual Color_t GetFillColor () const
 Return the fill area color.
 
virtual Style_t GetFillStyle () const
 Return the fill area style.
 
virtual Bool_t IsTransparent () const
 
virtual void Modify ()
 Change current fill area attributes if necessary.
 
virtual void ResetAttFill (Option_t *option="")
 Reset this fill attributes to default values.
 
virtual void SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001)
 Save fill attributes as C++ statement(s) on output stream out.
 
virtual void SetFillAttributes ()
 Invoke the DialogCanvas Fill attributes.
 
virtual void SetFillColor (Color_t fcolor)
 Set the fill area color.
 
virtual void SetFillColorAlpha (Color_t fcolor, Float_t falpha)
 Set a transparent fill color.
 
virtual void SetFillStyle (Style_t fstyle)
 Set the fill area style.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TAttMarker
 TAttMarker ()
 TAttMarker default constructor.
 
 TAttMarker (Color_t color, Style_t style, Size_t msize)
 TAttMarker normal constructor.
 
virtual ~TAttMarker ()
 TAttMarker destructor.
 
void Copy (TAttMarker &attmarker) const
 Copy this marker attributes to a new TAttMarker.
 
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 void Modify ()
 Change current marker attributes if necessary.
 
virtual void ResetAttMarker (Option_t *toption="")
 Reset this marker attributes to the default values.
 
virtual void SaveMarkerAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t sizdef=1)
 Save line attributes as C++ statement(s) on output stream out.
 
virtual void SetMarkerAttributes ()
 Invoke the DialogCanvas Marker attributes.
 
virtual void SetMarkerColor (Color_t mcolor=1)
 Set the marker color.
 
virtual void SetMarkerColorAlpha (Color_t mcolor, Float_t malpha)
 Set a transparent marker color.
 
virtual void SetMarkerSize (Size_t msize=1)
 Set the marker size.
 
virtual void SetMarkerStyle (Style_t mstyle=1)
 Set the marker style.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TArrayI
 TArrayI ()
 Default TArrayI ctor.
 
 TArrayI (const TArrayI &array)
 Copy constructor.
 
 TArrayI (Int_t n)
 Create TArrayI object and set array size to n integers.
 
 TArrayI (Int_t n, const Int_t *array)
 Create TArrayI object and initialize it with values of array.
 
virtual ~TArrayI ()
 Delete TArrayI object.
 
void AddAt (Int_t c, Int_t i)
 Add Int_t c at position i. Check for out of bounds.
 
void Adopt (Int_t n, Int_t *array)
 Adopt array arr into TArrayI, i.e.
 
Int_t At (Int_t i) const
 
void Copy (TArrayI &array) const
 
Int_tGetArray ()
 
const Int_tGetArray () const
 
Double_t GetAt (Int_t i) const override
 
Stat_t GetSum () const
 
TArrayIoperator= (const TArrayI &rhs)
 TArrayI assignment operator.
 
Int_toperator[] (Int_t i)
 
Int_t operator[] (Int_t i) const
 
void Reset ()
 
void Reset (Int_t val)
 
void Set (Int_t n) override
 Set size of this array to n ints.
 
void Set (Int_t n, const Int_t *array)
 Set size of this array to n ints and set the contents.
 
void SetAt (Double_t v, Int_t i) override
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TArray
 TArray ()
 
 TArray (const TArray &a)
 
 TArray (Int_t n)
 
virtual ~TArray ()
 
Int_t GetSize () const
 
TArrayoperator= (const TArray &rhs)
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 

Static Public Member Functions

static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TH2
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TH1
static void AddDirectory (Bool_t add=kTRUE)
 Sets the flag controlling the automatic add of histograms in memory.
 
static Bool_t AddDirectoryStatus ()
 Static function: cannot be inlined on Windows/NT.
 
static TClassClass ()
 
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)
 Decode string choptin and fill fitOption structure.
 
static Int_t GetDefaultBufferSize ()
 Static function return the default buffer size for automatic histograms the parameter fgBufferSize may be changed via SetDefaultBufferSize.
 
static Bool_t GetDefaultSumw2 ()
 Return kTRUE if TH1::Sumw2 must be called when creating new histograms.
 
static void SetDefaultBufferSize (Int_t buffersize=1000)
 Static function to set the default buffer size for automatic histograms.
 
static void SetDefaultSumw2 (Bool_t sumw2=kTRUE)
 When this static function is called with sumw2=kTRUE, all new histograms will automatically activate the storage of the sum of squares of errors, ie TH1::Sumw2 is automatically called.
 
static void SmoothArray (Int_t NN, Double_t *XX, Int_t ntimes=1)
 Smooth array xx, translation of Hbook routine hsmoof.F.
 
static void StatOverflows (Bool_t flag=kTRUE)
 if flag=kTRUE, underflows and overflows are used by the Fill functions in the computation of statistics (mean value, StdDev).
 
static TH1TransformHisto (TVirtualFFT *fft, TH1 *h_output, Option_t *option)
 For a given transform (first parameter), fills the histogram (second parameter) with the transform output data, specified in the third parameter If the 2nd parameter h_output is empty, a new histogram (TH1D or TH2D) is created and the user is responsible for deleting it.
 
- Static Public Member Functions inherited from TNamed
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TObject
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static Longptr_t GetDtorOnly ()
 Return destructor only flag.
 
static Bool_t GetObjectStat ()
 Get status of object stat flag.
 
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 Public Member Functions inherited from TAttLine
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TAttFill
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TAttMarker
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static Width_t GetMarkerLineWidth (Style_t style)
 Internal helper function that returns the line width of the given marker style (0 = filled marker)
 
static Style_t GetMarkerStyleBase (Style_t style)
 Internal helper function that returns the corresponding marker style with line width 1 for the given style.
 
- Static Public Member Functions inherited from TArrayI
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TArray
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static TArrayReadArray (TBuffer &b, const TClass *clReq)
 Read TArray object from buffer.
 
static void WriteArray (TBuffer &b, const TArray *a)
 Write TArray object to buffer.
 

Protected Member Functions

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.
 
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.
 
- Protected Member Functions inherited from TH2
 TH2 ()
 2-D histogram default constructor.
 
 TH2 (const char *name, const char *title, Int_t nbinsx, const Double_t *xbins, Int_t nbinsy, const Double_t *ybins)
 Constructor for Double_t variable bin size 2-D histograms.
 
 TH2 (const char *name, const char *title, Int_t nbinsx, const Double_t *xbins, Int_t nbinsy, Double_t ylow, Double_t yup)
 Constructor for variable bin size (along X axis) 2-D histograms using an input array of type double.
 
 TH2 (const char *name, const char *title, Int_t nbinsx, const Float_t *xbins, Int_t nbinsy, const Float_t *ybins)
 Constructor for variable bin size (along X and Y axis) 2-D histograms using input arrays of type float.
 
 TH2 (const char *name, const char *title, Int_t nbinsx, Double_t xlow, Double_t xup, Int_t nbinsy, const Double_t *ybins)
 Constructor for Double_t variable bin size (along Y axis) 2-D histograms.
 
 TH2 (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 for fix bin size 2-D histograms.
 
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 DoFitSlices (bool onX, TF1 *f1, Int_t firstbin, Int_t lastbin, Int_t cut, Option_t *option, TObjArray *arr)
 
virtual TProfileDoProfile (bool onX, const char *name, Int_t firstbin, Int_t lastbin, Option_t *option) const
 
virtual TH1DDoProjection (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 TH1DDoQuantiles (bool onX, const char *name, Double_t prob) const
 Implementation of quantiles for x or y.
 
Int_t Fill (const char *, Double_t) override
 Increment bin with namex with a weight w.
 
Int_t Fill (Double_t) override
 Invalid Fill method.
 
Double_t Interpolate (Double_t x) const override
 illegal for a TH2
 
- Protected Member Functions inherited from TH1
 TH1 ()
 Histogram default constructor.
 
 TH1 (const char *name, const char *title, Int_t nbinsx, const Double_t *xbins)
 Constructor for variable bin size histograms using an input array of type double.
 
 TH1 (const char *name, const char *title, Int_t nbinsx, const Float_t *xbins)
 Constructor for variable bin size histograms using an input array of type float.
 
 TH1 (const char *name, const char *title, Int_t nbinsx, Double_t xlow, Double_t xup)
 Constructor for fix bin size histograms.
 
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".
 
virtual void DoFillN (Int_t ntimes, const Double_t *x, const Double_t *w, Int_t stride=1)
 Internal method to fill histogram content from a vector called directly by TH1::BufferEmpty.
 
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
 Internal function compute integral and optionally the error between the limits specified by the bin number values working for all histograms (1D, 2D and 3D)
 
virtual Bool_t FindNewAxisLimits (const TAxis *axis, const Double_t point, Double_t &newMin, Double_t &newMax)
 finds new limits for the axis so that point is within the range and the limits are compatible with the previous ones (see TH1::Merge).
 
UInt_t GetAxisLabelStatus () const
 Internal function used in TH1::Fill to see which axis is full alphanumeric, i.e.
 
virtual Double_t GetBinErrorSqUnchecked (Int_t bin) const
 
Bool_t GetStatOverflowsBehaviour () const
 
Bool_t IsEmpty () const
 Check if a histogram is empty (this is a protected method used mainly by TH1Merger )
 
int LoggedInconsistency (const char *name, const TH1 *h1, const TH1 *h2, bool useMerge=false) const
 
virtual void SavePrimitiveHelp (std::ostream &out, const char *hname, Option_t *option="")
 Helper function for the SavePrimitive functions from TH1 or classes derived from TH1, eg TProfile, TProfile2D.
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected).
 
void MakeZombie ()
 
- Protected Member Functions inherited from TArray
Bool_t BoundsOk (const char *where, Int_t at) const
 
Bool_t OutOfBoundsError (const char *where, Int_t i) const
 Generate an out-of-bounds error. Always returns false.
 

Friends

TH2I operator* (Float_t c1, TH2I const &h1)
 Operator *.
 
TH2I operator* (TH2I const &h1, Float_t c1)
 
TH2I operator* (TH2I const &h1, TH2I const &h2)
 Operator *.
 
TH2I operator+ (TH2I const &h1, TH2I const &h2)
 Operator +.
 
TH2I operator- (TH2I const &h1, TH2I const &h2)
 Operator -.
 
TH2I operator/ (TH2I const &h1, TH2I const &h2)
 Operator /.
 

Additional Inherited Members

- Public Types inherited from TH1
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  { kNstat = 13 }
 Size of statistics data (size of array used in GetStats()/ PutStats ) More...
 
enum  EBinErrorOpt { kNormal = 0 , kPoisson = 1 , kPoisson2 = 2 }
 Enumeration specifying type of statistics for bin errors. 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 Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }
 
enum  EStatusBits {
  kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) ,
  kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 ))
}
 
- Public Attributes inherited from TArrayI
Int_tfArray
 
- Public Attributes inherited from TArray
Int_t fN
 
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = (1ULL << ( 3 )) }
 
- Static Protected Member Functions inherited from TH1
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 int CheckConsistency (const TH1 *h1, const TH1 *h2)
 Check histogram compatibility.
 
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)
 Finds new limits for the axis for the Merge function.
 
static Bool_t SameLimitsAndNBins (const TAxis &axis1, const TAxis &axis2)
 Same limits and bins.
 
- Protected Attributes inherited from TH2
Double_t fScalefactor
 Scale factor.
 
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.
 
- Protected Attributes inherited from TH1
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_tfBuffer
 [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)
 
TDirectoryfDirectory
 ! Pointer to directory holding this histogram
 
Double_t fEntries
 Number of entries.
 
TListfFunctions
 ->Pointer to list of functions (fits and user)
 
Double_tfIntegral
 ! Integral of bins used by GetRandom
 
Double_t fMaximum
 Maximum value for plotting.
 
Double_t fMinimum
 Minimum value for plotting.
 
Int_t fNcells
 Number of bins(1D), cells (2D) +U/Overflows.
 
Double_t fNormFactor
 Normalization factor.
 
TString fOption
 Histogram options.
 
TVirtualHistPainterfPainter
 ! Pointer to histogram painter
 
EStatOverflows fStatOverflows
 Per object flag to use under/overflows in statistics.
 
TArrayD fSumw2
 Array of sum of squares of weights.
 
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.
 
TAxis fXaxis
 X axis descriptor.
 
TAxis fYaxis
 Y axis descriptor.
 
TAxis fZaxis
 Z axis descriptor.
 
- Protected Attributes inherited from TNamed
TString fName
 
TString fTitle
 
- Protected Attributes inherited from TAttLine
Color_t fLineColor
 Line color.
 
Style_t fLineStyle
 Line style.
 
Width_t fLineWidth
 Line width.
 
- Protected Attributes inherited from TAttFill
Color_t fFillColor
 Fill area color.
 
Style_t fFillStyle
 Fill area style.
 
- Protected Attributes inherited from TAttMarker
Color_t fMarkerColor
 Marker color.
 
Size_t fMarkerSize
 Marker size.
 
Style_t fMarkerStyle
 Marker style.
 
- Static Protected Attributes inherited from TH1
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
 

#include <TH2.h>

Inheritance diagram for TH2I:
[legend]

Constructor & Destructor Documentation

◆ TH2I() [1/7]

TH2I::TH2I ( )

Constructor.

Definition at line 3390 of file TH2.cxx.

◆ TH2I() [2/7]

TH2I::TH2I ( 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 3409 of file TH2.cxx.

◆ TH2I() [3/7]

TH2I::TH2I ( 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 3424 of file TH2.cxx.

◆ TH2I() [4/7]

TH2I::TH2I ( 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 3437 of file TH2.cxx.

◆ TH2I() [5/7]

TH2I::TH2I ( 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 3450 of file TH2.cxx.

◆ TH2I() [6/7]

TH2I::TH2I ( 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 3463 of file TH2.cxx.

◆ TH2I() [7/7]

TH2I::TH2I ( const TH2I h2i)

Copy constructor.

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

Definition at line 3476 of file TH2.cxx.

◆ ~TH2I()

TH2I::~TH2I ( )
override

Destructor.

Definition at line 3400 of file TH2.cxx.

Member Function Documentation

◆ AddBinContent() [1/4]

void TH2I::AddBinContent ( Int_t  bin)
overridevirtual

Increment bin content by 1.

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

Reimplemented from TH2.

Definition at line 3486 of file TH2.cxx.

◆ AddBinContent() [2/4]

void TH2I::AddBinContent ( Int_t  bin,
Double_t  w 
)
overridevirtual

Increment bin content by w.

Warning
The value of w is cast to Long64_t before being added. Passing an out-of-range bin leads to undefined behavior

Reimplemented from TH2.

Definition at line 3497 of file TH2.cxx.

◆ AddBinContent() [3/4]

void TH2I::AddBinContent ( Int_t  binx,
Int_t  biny 
)
inlineoverridevirtual

Increment 2D bin content by 1.

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

Reimplemented from TH2.

Definition at line 244 of file TH2.h.

◆ AddBinContent() [4/4]

void TH2I::AddBinContent ( Int_t  binx,
Int_t  biny,
Double_t  w 
)
inlineoverridevirtual

Increment 2D bin content by a weight w.

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

Reimplemented from TH2.

Definition at line 245 of file TH2.h.

◆ Class()

static TClass * TH2I::Class ( )
static
Returns
TClass describing this class

◆ Class_Name()

static const char * TH2I::Class_Name ( )
static
Returns
Name of this class

◆ Class_Version()

static constexpr Version_t TH2I::Class_Version ( )
inlinestaticconstexpr
Returns
Version of this class

Definition at line 262 of file TH2.h.

◆ Copy()

void TH2I::Copy ( TObject hnew) const
overridevirtual

Copy.

Reimplemented from TH2.

Definition at line 3509 of file TH2.cxx.

◆ DeclFileName()

static const char * TH2I::DeclFileName ( )
inlinestatic
Returns
Name of the file containing the class declaration

Definition at line 262 of file TH2.h.

◆ IsA()

TClass * TH2I::IsA ( ) const
inlineoverridevirtual
Returns
TClass describing current object

Reimplemented from TH2.

Definition at line 262 of file TH2.h.

◆ operator=()

TH2I & TH2I::operator= ( const TH2I h1)

Operator =.

Definition at line 3540 of file TH2.cxx.

◆ Reset()

void TH2I::Reset ( Option_t option = "")
overridevirtual

Reset this histogram: contents, errors, etc.

Reimplemented from TH2.

Definition at line 3518 of file TH2.cxx.

◆ RetrieveBinContent()

Double_t TH2I::RetrieveBinContent ( Int_t  bin) const
inlineoverrideprotectedvirtual

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

Reimplemented from TH1.

Definition at line 259 of file TH2.h.

◆ SetBinsLength()

void TH2I::SetBinsLength ( Int_t  n = -1)
overridevirtual

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

Reimplemented from TH1.

Definition at line 3529 of file TH2.cxx.

◆ Streamer()

void TH2I::Streamer ( TBuffer R__b)
overridevirtual

Stream an object of class TH2.

Reimplemented from TH2.

◆ StreamerNVirtual()

void TH2I::StreamerNVirtual ( TBuffer ClassDef_StreamerNVirtual_b)
inline

Definition at line 262 of file TH2.h.

◆ UpdateBinContent()

void TH2I::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.

Reimplemented from TH1.

Definition at line 260 of file TH2.h.

Friends And Related Symbol Documentation

◆ operator* [1/3]

TH2I operator* ( Float_t  c1,
TH2I const &  h1 
)
friend

Operator *.

Definition at line 3551 of file TH2.cxx.

◆ operator* [2/3]

TH2I operator* ( TH2I const &  h1,
Float_t  c1 
)
friend

Definition at line 252 of file TH2.h.

◆ operator* [3/3]

TH2I operator* ( TH2I const &  h1,
TH2I const &  h2 
)
friend

Operator *.

Definition at line 3587 of file TH2.cxx.

◆ operator+

TH2I operator+ ( TH2I const &  h1,
TH2I const &  h2 
)
friend

Operator +.

Definition at line 3563 of file TH2.cxx.

◆ operator-

TH2I operator- ( TH2I const &  h1,
TH2I const &  h2 
)
friend

Operator -.

Definition at line 3575 of file TH2.cxx.

◆ operator/

TH2I operator/ ( TH2I const &  h1,
TH2I const &  h2 
)
friend

Operator /.

Definition at line 3599 of file TH2.cxx.

Libraries for TH2I:

The documentation for this class was generated from the following files: