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ROOT
Reference Guide |
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ROOT
Reference Guide |
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A projection of a TF2 along X or Y.
It has the same behaviour as a TF1
Example of a function
Public Types | |
| enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
| enum | { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) } |
| enum class | EAddToList { kDefault , kAdd , kNo } |
| Add to list behavior. More... | |
| enum | EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) } |
| enum | EStatusBits { kNotGlobal = (1ULL << ( 10 )) , kNotDraw = (1ULL << ( 9 )) } |
Public Member Functions | |
| TF12 () | |
| TF12 default constructor. | |
| TF12 (const char *name, TF2 *f2, Double_t xy, Option_t *option="x", EAddToList addToGlobList=EAddToList::kDefault) | |
| TF12 normal constructor. | |
| TF12 (const TF12 &f12) | |
| Copy constructor. | |
| ~TF12 () override | |
| F2 default 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 void | AddParameter (const TString &name, Double_t value) |
| virtual Bool_t | AddToGlobalList (Bool_t on=kTRUE) |
| Add to global list of functions (gROOT->GetListOfFunctions() ) return previous status (true if the function was already in the list false if not) | |
| virtual void | AppendPad (Option_t *option="") |
| Append graphics object to current pad. | |
| void | Browse (TBrowser *b) override |
| Browse. | |
| virtual Double_t | CentralMoment (Double_t n, Double_t a, Double_t b, const Double_t *params=nullptr, Double_t epsilon=0.000001) |
| Return nth central moment of function between a and b (i.e the n-th moment around the mean value) | |
| 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. | |
| void | Clear (Option_t *option="") override |
| Set name and title to empty strings (""). | |
| TObject * | Clone (const char *newname=nullptr) const override |
| Make a complete copy of the underlying object. | |
| Int_t | Compare (const TObject *obj) const override |
| Compare two TNamed objects. | |
| void | Copy (TAttFill &attfill) const |
| Copy this fill attributes to a new TAttFill. | |
| void | Copy (TAttLine &attline) const |
| Copy this line attributes to a new TAttLine. | |
| void | Copy (TAttMarker &attmarker) const |
| Copy this marker attributes to a new TAttMarker. | |
| void | Copy (TObject &f12) const override |
| Copy this F2 to a new F2. | |
| virtual TH1 * | CreateHistogram () |
| virtual void | Delete (Option_t *option="") |
| Delete this object. | |
| virtual Double_t | Derivative (Double_t x, Double_t *params=nullptr, Double_t epsilon=0.001) const |
| Returns the first derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas. | |
| virtual Double_t | Derivative2 (Double_t x, Double_t *params=nullptr, Double_t epsilon=0.001) const |
| Returns the second derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas. | |
| virtual Double_t | Derivative3 (Double_t x, Double_t *params=nullptr, Double_t epsilon=0.001) const |
| Returns the third derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas. | |
| 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. | |
| Int_t | DistancetoPrimitive (Int_t px, Int_t py) override |
| Compute distance from point px,py to a function. | |
| void | Draw (Option_t *option="") override |
| Draw this function with its current attributes. | |
| 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). | |
| TF1 * | DrawCopy (Option_t *option="") const override |
| Draw a copy of this function with its current attributes. | |
| virtual TObject * | DrawDerivative (Option_t *option="al") |
| Draw derivative of this function. | |
| virtual void | DrawF1 (Double_t xmin, Double_t xmax, Option_t *option="") |
| Draw function between xmin and xmax. | |
| virtual TObject * | DrawIntegral (Option_t *option="al") |
| Draw integral of this function. | |
| virtual void | Dump () const |
| Dump contents of object on stdout. | |
| virtual void | Error (const char *method, const char *msgfmt,...) const |
| Issue error message. | |
| Double_t | Eval (Double_t x, Double_t y=0, Double_t z=0, Double_t t=0) const override |
| Evaluate this formula. | |
| Double_t | EvalPar (const Double_t *x, const Double_t *params=nullptr) override |
| Evaluate this function at point x[0]. | |
| template<class T > | |
| T | EvalPar (const T *x, const Double_t *params=nullptr) |
| EvalPar for vectorized. | |
| Double_t | EvalUncertainty (Double_t x, const TMatrixDSym *covMatrix=nullptr) const |
| Evaluate the uncertainty of the function at location x due to the parameter uncertainties. | |
| 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 one event. | |
| virtual void | Fatal (const char *method, const char *msgfmt,...) const |
| Issue fatal error message. | |
| virtual void | FillBuffer (char *&buffer) |
| Encode TNamed into output buffer. | |
| virtual TObject * | FindObject (const char *name) const |
| Must be redefined in derived classes. | |
| virtual TObject * | FindObject (const TObject *obj) const |
| Must be redefined in derived classes. | |
| virtual void | FixParameter (Int_t ipar, Double_t value) |
| Fix the value of a parameter for a fit operation The specified value will be used in the fit and the parameter will be constant (nor varying) during fitting Note that when using pre-defined functions (e.g gaus), one needs to use the fit option 'B' to have the fix of the paramter effective. | |
| Double_t | GetChisquare () const |
| Return the Chisquare after fitting. See ROOT::Fit::FitResult::Chi2() | |
| virtual Option_t * | GetDrawOption () const |
| Get option used by the graphics system to draw this object. | |
| virtual TString | GetExpFormula (Option_t *option="") const |
| virtual Color_t | GetFillColor () const |
| Return the fill area color. | |
| virtual Style_t | GetFillStyle () const |
| Return the fill area style. | |
| virtual TFormula * | GetFormula () |
| virtual const TFormula * | GetFormula () const |
| virtual TH1 * | GetHistogram () const |
| Return a pointer to the histogram used to visualise the function Note that this histogram is managed by the function and in same case it is automatically deleted when some TF1 functions are called such as TF1::SetParameters, TF1::SetNpx, TF1::SetRange It is then reccomended either to clone the return object or calling again teh GetHistogram function whenever is needed. | |
| virtual const char * | GetIconName () const |
| Returns mime type name of object. | |
| virtual const TObject * | GetLinearPart (Int_t i) const |
| 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 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 xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the maximum value of the function. | |
| virtual Double_t | GetMaximumStored () const |
| virtual Double_t | GetMaximumX (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the X value corresponding to the maximum value of the function. | |
| TMethodCall * | GetMethodCall () const |
| virtual Double_t | GetMinimum (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the minimum value of the function on the (xmin, xmax) interval. | |
| virtual Double_t | GetMinimumStored () const |
| virtual Double_t | GetMinimumX (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the X value corresponding to the minimum value of the function on the (xmin, xmax) interval. | |
| const char * | GetName () const override |
| Returns name of object. | |
| virtual Int_t | GetNDF () const |
| Return the number of degrees of freedom in the fit the fNDF parameter has been previously computed during a fit. | |
| virtual Int_t | GetNdim () const |
| virtual Int_t | GetNpar () const |
| virtual Int_t | GetNpx () const |
| virtual Int_t | GetNumber () const |
| virtual Int_t | GetNumberFitPoints () const |
| virtual Int_t | GetNumberFreeParameters () const |
| Return the number of free parameters. | |
| char * | GetObjectInfo (Int_t px, Int_t py) const override |
| Redefines TObject::GetObjectInfo. | |
| virtual Option_t * | GetOption () const |
| virtual Double_t | GetParameter (const TString &name) const |
| virtual Double_t | GetParameter (Int_t ipar) const |
| virtual Double_t * | GetParameters () const |
| virtual void | GetParameters (Double_t *params) |
| TObject * | GetParent () const |
| virtual Double_t | GetParError (const char *name) const |
| virtual Double_t | GetParError (Int_t ipar) const |
| Return value of parameter number ipar. | |
| virtual const Double_t * | GetParErrors () const |
| virtual void | GetParLimits (Int_t ipar, Double_t &parmin, Double_t &parmax) const |
| Return limits for parameter ipar. | |
| virtual const char * | GetParName (Int_t ipar) const |
| virtual Int_t | GetParNumber (const char *name) const |
| virtual Double_t | GetProb () const |
| Return the fit probability. | |
| virtual Int_t | GetQuantiles (Int_t n, Double_t *xp, const Double_t *p) |
| Compute Quantiles for density distribution of this function. | |
| virtual Double_t | GetRandom (Double_t xmin, Double_t xmax, TRandom *rng=nullptr, Option_t *opt=nullptr) |
| Return a random number following this function shape in [xmin,xmax]. | |
| virtual Double_t | GetRandom (TRandom *rng=nullptr, Option_t *opt=nullptr) |
| Return a random number following this function shape. | |
| virtual void | GetRange (Double_t &xmin, Double_t &xmax) const |
| Return range of a 1-D function. | |
| virtual void | GetRange (Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) const |
| Return range of a 2-D function. | |
| virtual void | GetRange (Double_t &xmin, Double_t &ymin, Double_t &zmin, Double_t &xmax, Double_t &ymax, Double_t &zmax) const |
| Return range of function. | |
| virtual Double_t | GetSave (const Double_t *x) |
| Get value corresponding to X in array of fSave values. | |
| const char * | GetTitle () const override |
| Returns title of object. | |
| virtual UInt_t | GetUniqueID () const |
| Return the unique object id. | |
| virtual Double_t | GetVariable (const TString &name) |
| virtual Double_t | GetX (Double_t y, Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the X value corresponding to the function value fy for (xmin<x<xmax). | |
| TAxis * | GetXaxis () const |
| Get x axis of the function. | |
| virtual Double_t | GetXmax () const |
| virtual Double_t | GetXmin () const |
| virtual Double_t | GetXY () const |
| TAxis * | GetYaxis () const |
| Get y axis of the function. | |
| TAxis * | GetZaxis () const |
| Get z axis of the function. (In case this object is a TF2 or TF3) | |
| virtual void | GradientPar (const Double_t *x, Double_t *grad, Double_t eps=0.01) const |
| Compute the gradient wrt parameters If the TF1 object is based on a formula expression (TFormula) and TFormula::GenerateGradientPar() has been successfully called automatic differentiation using CLAD is used instead of the default numerical differentiation. | |
| template<class T > | |
| void | GradientPar (const T *x, T *grad, Double_t eps=0.01) const |
| virtual Double_t | GradientPar (Int_t ipar, const Double_t *x, Double_t eps=0.01) const |
| Compute the gradient (derivative) wrt a parameter ipar. | |
| template<class T > | |
| T | GradientPar (Int_t ipar, const T *x, Double_t eps=0.01) const |
| template<class T > | |
| void | GradientParTempl (const T *x, T *grad, Double_t eps=0.01) const |
| template<class T > | |
| T | GradientParTempl (Int_t ipar, const T *x, Double_t eps=0.01) 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. | |
| Bool_t | HasSave () const |
| Return true if function has data in fSave buffer. | |
| 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 | InitArgs (const Double_t *x, const Double_t *params) |
| Initialize parameters addresses. | |
| virtual void | Inspect () const |
| Dump contents of this object in a graphics canvas. | |
| virtual Double_t | Integral (Double_t a, Double_t b, Double_t epsrel=1.e-12) |
| IntegralOneDim or analytical integral. | |
| virtual Double_t | IntegralError (Double_t a, Double_t b, const Double_t *params=nullptr, const Double_t *covmat=nullptr, Double_t epsilon=1.E-2) |
| Return Error on Integral of a parametric function between a and b due to the parameter uncertainties and their covariance matrix from the fit. | |
| virtual Double_t | IntegralError (Int_t n, const Double_t *a, const Double_t *b, const Double_t *params=nullptr, const Double_t *covmat=nullptr, Double_t epsilon=1.E-2) |
| Return Error on Integral of a parametric function with dimension larger than one between a[] and b[] due to the parameters uncertainties. | |
| virtual Double_t | IntegralFast (Int_t num, Double_t *x, Double_t *w, Double_t a, Double_t b, Double_t *params=nullptr, Double_t epsilon=1e-12) |
| Gauss-Legendre integral, see CalcGaussLegendreSamplingPoints. | |
| virtual Double_t | IntegralMultiple (Int_t n, const Double_t *a, const Double_t *b, Double_t epsrel, Double_t &relerr) |
| See more general prototype below. | |
| virtual Double_t | IntegralMultiple (Int_t n, const Double_t *a, const Double_t *b, Int_t maxpts, Double_t epsrel, Double_t epsabs, Double_t &relerr, Int_t &nfnevl, Int_t &ifail) |
| This function computes, to an attempted specified accuracy, the value of the integral. | |
| virtual Double_t | IntegralMultiple (Int_t n, const Double_t *a, const Double_t *b, Int_t, Int_t maxpts, Double_t epsrel, Double_t &relerr, Int_t &nfnevl, Int_t &ifail) |
| virtual Double_t | IntegralOneDim (Double_t a, Double_t b, Double_t epsrel, Double_t epsabs, Double_t &err) |
| Return Integral of function between a and b using the given parameter values and relative and absolute tolerance. | |
| void | InvertBit (UInt_t f) |
| TClass * | IsA () const override |
| 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 | IsEvalNormalized () const |
| virtual Bool_t | IsFolder () const |
| Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). | |
| virtual Bool_t | IsInside (const Double_t *x) const |
| return kTRUE if the point is inside the function range | |
| virtual Bool_t | IsLinear () const |
| R__ALWAYS_INLINE Bool_t | IsOnHeap () const |
| Bool_t | IsSortable () const override |
| virtual Bool_t | IsTransparent () const |
| virtual Bool_t | IsValid () const |
| Return kTRUE if the function is valid. | |
| bool | IsVectorized () |
| R__ALWAYS_INLINE Bool_t | IsZombie () const |
| 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 Double_t | Mean (Double_t a, Double_t b, const Double_t *params=nullptr, Double_t epsilon=0.000001) |
| virtual void | Modify () |
| Change current fill area attributes if necessary. | |
| virtual void | Modify () |
| Change current line attributes if necessary. | |
| virtual void | Modify () |
| Change current marker attributes if necessary. | |
| virtual void | ModifyOn (TVirtualPad &pad) |
| Change current fill area attributes on speicifed pad. | |
| virtual void | ModifyOn (TVirtualPad &pad) |
| Change current line attributes on specified pad. | |
| virtual void | ModifyOn (TVirtualPad &pad) |
| Change current marker attributes if necessary on specified pad. | |
| virtual Double_t | Moment (Double_t n, Double_t a, Double_t b, const Double_t *params=nullptr, Double_t epsilon=0.000001) |
| Return nth moment of function between a and b. | |
| 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) |
| template<class T > | |
| T | operator() (const T *x, const Double_t *params=nullptr) |
| virtual Double_t | operator() (Double_t x, Double_t y=0, Double_t z=0, Double_t t=0) const |
| void | Paint (Option_t *option="") override |
| Paint this function with its current attributes. | |
| 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. | |
| virtual Int_t | Read (const char *name) |
| Read contents of object with specified name from the current directory. | |
| virtual void | RecursiveRemove (TObject *obj) |
| Recursively remove this object from a list. | |
| virtual void | ReleaseParameter (Int_t ipar) |
| Release parameter number ipar during a fit operation. | |
| virtual void | ResetAttFill (Option_t *option="") |
| Reset this fill attributes to default values. | |
| virtual void | ResetAttLine (Option_t *option="") |
| Reset this line attributes to default values. | |
| virtual void | ResetAttMarker (Option_t *toption="") |
| Reset this marker attributes to the default values. | |
| void | ResetBit (UInt_t f) |
| virtual void | Save (Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax) |
| Save values of function in array fSave. | |
| virtual void | SaveAs (const char *filename="", Option_t *option="") const |
| 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) |
| Save fill attributes as C++ statement(s) on output stream out. | |
| 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 | 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. | |
| void | SavePrimitive (std::ostream &out, Option_t *option="") override |
| Save primitive as a C++ statement(s) on output stream out. | |
| 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 | SetChisquare (Double_t chi2) |
| virtual void | SetDrawOption (Option_t *option="") |
| Set drawing option for object. | |
| virtual void | SetFillAttributes () |
| Invoke the DialogCanvas Fill attributes. | |
| virtual void | SetFillColor (Color_t fcolor) |
| Set the fill area color. | |
| void | SetFillColor (TColorNumber) |
| Set a fill 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. | |
| virtual void | SetFitResult (const ROOT::Fit::FitResult &result, const Int_t *indpar=nullptr) |
| Set the result from the fit parameter values, errors, chi2, etc... Optionally a pointer to a vector (with size fNpar) of the parameter indices in the FitResult can be passed This is useful in the case of a combined fit with different functions, and the FitResult contains the global result By default it is assume that indpar = {0,1,2,....,fNpar-1}. | |
| template<typename Func > | |
| void | SetFunction (Func f) |
| template<class PtrObj , typename MemFn > | |
| void | SetFunction (PtrObj &p, MemFn memFn) |
| virtual void | SetLineAttributes () |
| Invoke the DialogCanvas Line attributes. | |
| virtual void | SetLineColor (Color_t lcolor) |
| Set the line color. | |
| void | SetLineColor (TColorNumber lcolor) |
| 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. | |
| virtual void | SetMarkerAttributes () |
| Invoke the DialogCanvas Marker attributes. | |
| virtual void | SetMarkerColor (Color_t mcolor=1) |
| Set the marker color. | |
| void | SetMarkerColor (TColorNumber lcolor) |
| 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. | |
| virtual void | SetMaximum (Double_t maximum=-1111) |
| Set the maximum value along Y for this function In case the function is already drawn, set also the maximum in the helper histogram. | |
| virtual void | SetMinimum (Double_t minimum=-1111) |
| Set the minimum value along Y for this function In case the function is already drawn, set also the minimum in the helper histogram. | |
| virtual void | SetName (const char *name) |
| Set the name of the TNamed. | |
| virtual void | SetNameTitle (const char *name, const char *title) |
| Set all the TNamed parameters (name and title). | |
| virtual void | SetNDF (Int_t ndf) |
| Set the number of degrees of freedom ndf should be the number of points used in a fit - the number of free parameters. | |
| void | SetNdim (Int_t ndim) |
| virtual void | SetNormalized (Bool_t flag) |
| virtual void | SetNpx (Int_t npx=100) |
| Set the number of points used to draw the function. | |
| virtual void | SetNumberFitPoints (Int_t npfits) |
| virtual void | SetParameter (const TString &name, Double_t value) |
| virtual void | SetParameter (Int_t param, Double_t value) |
| virtual void | SetParameters (const Double_t *params) |
| virtual void | SetParameters (double p0, double p1=TMath::QuietNaN(), double p2=TMath::QuietNaN(), double p3=TMath::QuietNaN(), double p4=TMath::QuietNaN(), double p5=TMath::QuietNaN(), double p6=TMath::QuietNaN(), double p7=TMath::QuietNaN(), double p8=TMath::QuietNaN(), double p9=TMath::QuietNaN(), double p10=TMath::QuietNaN()) |
| Set parameter values. | |
| virtual void | SetParent (TObject *p=nullptr) |
| virtual void | SetParError (Int_t ipar, Double_t error) |
| Set error for parameter number ipar. | |
| virtual void | SetParErrors (const Double_t *errors) |
| Set errors for all active parameters when calling this function, the array errors must have at least fNpar values. | |
| virtual void | SetParLimits (Int_t ipar, Double_t parmin, Double_t parmax) |
| Set lower and upper limits for parameter ipar. | |
| virtual void | SetParName (Int_t ipar, const char *name) |
| Set name of parameter number ipar. | |
| virtual void | SetParNames (const char *name0="", const char *name1="", const char *name2="", const char *name3="", const char *name4="", const char *name5="", const char *name6="", const char *name7="", const char *name8="", const char *name9="", const char *name10="") |
| Set up to 10 parameter names. | |
| virtual void | SetRange (Double_t xmin, Double_t xmax) |
| Initialize the upper and lower bounds to draw the function. | |
| virtual void | SetRange (Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax) |
| virtual void | SetRange (Double_t xmin, Double_t ymin, Double_t zmin, Double_t xmax, Double_t ymax, Double_t zmax) |
| virtual void | SetSavedPoint (Int_t point, Double_t value) |
| Restore value of function saved at point. | |
| void | SetTitle (const char *title="") override |
| Set function title if title has the form "fffffff;xxxx;yyyy", it is assumed that the function title is "fffffff" and "xxxx" and "yyyy" are the titles for the X and Y axis respectively. | |
| virtual void | SetUniqueID (UInt_t uid) |
| Set the unique object id. | |
| virtual void | SetVectorized (Bool_t vectorized) |
| virtual void | SetXY (Double_t xy) |
| Set the value of the constant for the TF2. | |
| virtual Int_t | Sizeof () const |
| Return size of the TNamed part of the TObject. | |
| void | Streamer (TBuffer &) override |
| Stream a class object. | |
| 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 | Update () |
| Called by functions such as SetRange, SetNpx, SetParameters to force the deletion of the associated histogram or Integral. | |
| virtual void | UseCurrentStyle () |
| Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. | |
| virtual Double_t | Variance (Double_t a, Double_t b, const Double_t *params=nullptr, Double_t epsilon=0.000001) |
| 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 | AbsValue (Bool_t reject=kTRUE) |
| Static function: set the fgAbsValue flag. | |
| static void | CalcGaussLegendreSamplingPoints (Int_t num, Double_t *x, Double_t *w, Double_t eps=3.0e-11) |
| Type safe interface (static method) The number of sampling points are taken from the TGraph. | |
| static TClass * | Class () |
| static const char * | Class_Name () |
| static constexpr Version_t | Class_Version () |
| static const char * | DeclFileName () |
| static Bool_t | DefaultAddToGlobalList (Bool_t on=kTRUE) |
| Static method to add/avoid to add automatically functions to the global list (gROOT->GetListOfFunctions() ) After having called this static method, all the functions created afterwards will follow the desired behaviour. | |
| static Double_t | DerivativeError () |
| Static function returning the error of the last call to the of Derivative's functions. | |
| static TF1 * | GetCurrent () |
| Static function returning the current function being processed. | |
| static Longptr_t | GetDtorOnly () |
| Return destructor only flag. | |
| 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 Bool_t | GetObjectStat () |
| Get status of object stat flag. | |
| static void | InitStandardFunctions () |
| Create the basic function objects. | |
| static Bool_t | RejectedPoint () |
| See TF1::RejectPoint above. | |
| static void | RejectPoint (Bool_t reject=kTRUE) |
| Static function to set the global flag to reject points the fgRejectPoint global flag is tested by all fit functions if TRUE the point is not included in the fit. | |
| static void | SetCurrent (TF1 *f1) |
| Static function setting the current function. | |
| static void | SetDtorOnly (void *obj) |
| Set destructor only flag. | |
| static void | SetObjectStat (Bool_t stat) |
| Turn on/off tracking of objects in the TObjectTable. | |
Protected Types | |
| enum | { kOnlyPrepStep = (1ULL << ( 3 )) } |
| enum | EFType { kFormula = 0 , kPtrScalarFreeFcn , kInterpreted , kTemplVec , kTemplScalar , kCompositionFcn } |
Protected Member Functions | |
| Bool_t | ComputeCdfTable (Option_t *opt) |
| Compute the cumulative function at fNpx points between fXmin and fXmax. | |
| virtual TH1 * | DoCreateHistogram (Double_t xmin, Double_t xmax, Bool_t recreate=kFALSE) |
| Create histogram with bin content equal to function value computed at the bin center This histogram will be used to paint the function A re-creation is forced and a new histogram is done if recreate=true. | |
| virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
| Interface to ErrorHandler (protected). | |
| void | DoInitialize (EAddToList addToGlobList) |
| Common initialization of the TF1. | |
| virtual Double_t | GetMinMaxNDim (Double_t *x, Bool_t findmax, Double_t epsilon=0, Int_t maxiter=0) const |
| Find the minimum of a function of whatever dimension. | |
| virtual void | GetRange (Double_t *xmin, Double_t *xmax) const |
| Return range of a generic N-D function. | |
| void | IntegrateForNormalization () |
| void | MakeZombie () |
| TString | ProvideSaveName (Option_t *option) |
| Provide variable name for function for saving as primitive When TH1 or TGraph stores list of functions, it applies special coding of created variable names. | |
| void | SavePrimitiveNameTitle (std::ostream &out, const char *variable_name) |
| Save object name and title into the output stream "out". | |
Static Protected Member Functions | |
| 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 | |
| std::vector< Double_t > | fAlpha |
| ! Array alpha. for each bin in x the deconvolution r of fIntegral | |
| std::vector< Double_t > | fBeta |
| ! Array beta. is approximated by x = alpha +beta*r *gamma*r**2 | |
| Int_t | fCase |
| Projection along X(0), or Y(1) | |
| Double_t | fChisquare {} |
| Function fit chisquare. | |
| std::unique_ptr< TF1AbsComposition > | fComposition |
| Pointer to composition (NSUM or CONV) | |
| TF2 * | fF2 |
| Pointer to the mother TF2. | |
| Color_t | fFillColor |
| Fill area color. | |
| Style_t | fFillStyle |
| Fill area style. | |
| std::unique_ptr< TFormula > | fFormula |
| Pointer to TFormula in case when user define formula. | |
| std::unique_ptr< TF1FunctorPointer > | fFunctor |
| ! Functor object to wrap any C++ callable object | |
| std::vector< Double_t > | fGamma |
| ! Array gamma. | |
| TH1 * | fHistogram {nullptr} |
| ! Pointer to histogram used for visualisation | |
| std::vector< Double_t > | fIntegral |
| ! Integral of function binned on fNpx bins | |
| 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 {-1111} |
| Maximum value for plotting. | |
| std::unique_ptr< TMethodCall > | fMethodCall |
| ! Pointer to MethodCall in case of interpreted function | |
| Double_t | fMinimum {-1111} |
| Minimum value for plotting. | |
| TString | fName |
| Int_t | fNDF {} |
| Number of degrees of freedom in the fit. | |
| Int_t | fNdim {} |
| Function dimension. | |
| Bool_t | fNormalized {false} |
| Normalization option (false by default) | |
| Double_t | fNormIntegral {} |
| Integral of the function before being normalized. | |
| Int_t | fNpar {} |
| Number of parameters. | |
| Int_t | fNpfits {} |
| Number of points used in the fit. | |
| Int_t | fNpx {100} |
| Number of points used for the graphical representation. | |
| std::unique_ptr< TF1Parameters > | fParams |
| Pointer to Function parameters object (exists only for not-formula functions) | |
| TObject * | fParent {nullptr} |
| ! Parent object hooking this function (if one) | |
| std::vector< Double_t > | fParErrors |
| Array of errors of the fNpar parameters. | |
| std::vector< Double_t > | fParMax |
| Array of upper limits of the fNpar parameters. | |
| std::vector< Double_t > | fParMin |
| Array of lower limits of the fNpar parameters. | |
| std::vector< Double_t > | fSave |
| Array of fNsave function values. | |
| TString | fTitle |
| EFType | fType {EFType::kTemplScalar} |
| Double_t | fXmax {-1111} |
| Upper bounds for the range. | |
| Double_t | fXmin {-1111} |
| Lower bounds for the range. | |
| Double_t | fXY |
| Value along Y (if projection X) or X (if projection Y) | |
Static Protected Attributes | |
| static std::atomic< Bool_t > | fgAbsValue |
| static std::atomic< Bool_t > | fgAddToGlobList |
| static TF1 * | fgCurrent = nullptr |
| static Bool_t | fgRejectPoint = kFALSE |
Private Member Functions | |
| void | DefineNSUMTerm (TObjArray *newFuncs, TObjArray *coeffNames, TString &fullFormula, TString &formula, int termStart, int termEnd, Double_t xmin, Double_t xmax) |
| Helper functions for NSUM parsing. | |
| template<class T > | |
| T | EvalParTempl (const T *data, const Double_t *params=nullptr) |
| Eval for vectorized functions. | |
| double | EvalParVec (const Double_t *data, const Double_t *params) |
| int | TermCoeffLength (TString &term) |
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 | |
#include <TF12.h>
| Enumerator | |
|---|---|
| kOnlyPrepStep | Used to request that the class specific implementation of This is just for example by TBufferMerger to request that the TTree inside the file calls |
|
stronginherited |
|
inherited |
|
protectedinherited |
|
inherited |
| TF12::TF12 | ( | const char * | name, |
| TF2 * | f2, | ||
| Double_t | xy, | ||
| Option_t * | option = "x", | ||
| EAddToList | addToGlobList = EAddToList::kDefault ) |
|
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.
Definition at line 1149 of file TObject.cxx.
Static function: set the fgAbsValue flag.
By default TF1::Integral uses the original function value to compute the integral However, TF1::Moment, CentralMoment require to compute the integral using the absolute value of the function.
|
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.
|
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.
|
overridevirtualinherited |
|
staticinherited |
Type safe interface (static method) The number of sampling points are taken from the TGraph.
Type: unsafe but fast interface filling the arrays x and w (static method)
Given the number of sampling points this routine fills the arrays x and w of length num, containing the abscissa and weight of the Gauss-Legendre n-point quadrature formula.
Gauss-Legendre:
\[ W(x)=1 -1<x<1 \\ (j+1)P_{j+1} = (2j+1)xP_j-jP_{j-1} \]
num is the number of sampling points (>0) x and w are arrays of size num eps is the relative precision
If num<=0 or eps<=0 no action is done.
Reference: Numerical Recipes in C, Second Edition
|
virtualinherited |
Return nth central moment of function between a and b (i.e the n-th moment around the mean value)
See TF1::Integral() for parameter definitions
|
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.
|
virtualinherited |
Returns name of class to which the object belongs.
Definition at line 227 of file TObject.cxx.
|
overridevirtualinherited |
Set name and title to empty strings ("").
Reimplemented from TObject.
Reimplemented in TStreamerInfo, TVirtualStreamerInfo, TProcessID, TTask, TPrincipal, and TVirtualFitter.
Definition at line 63 of file TNamed.cxx.
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.
|
inherited |
Copy this fill attributes to a new TAttFill.
Definition at line 203 of file TAttFill.cxx.
|
inherited |
Copy this line attributes to a new TAttLine.
Definition at line 176 of file TAttLine.cxx.
|
inherited |
Copy this marker attributes to a new TAttMarker.
Definition at line 243 of file TAttMarker.cxx.
|
overridevirtual |
Static method to add/avoid to add automatically functions to the global list (gROOT->GetListOfFunctions() ) After having called this static method, all the functions created afterwards will follow the desired behaviour.
By default the functions are added automatically It returns the previous status (true if the functions are added automatically)
|
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 TDirectory, TDirectoryFile, TFile, TSystemDirectory, TSystemFile, TTreeViewer, TGItemContext, TCanvas, TGFrame, TGTextEdit, TAxis, RooLinkedList, TExMap, TObjectTable, TProtoClass, TKeySQL, TKeyXML, TQCommand, TBtree, TClonesArray, THashList, THashTable, TList, TMap, TObjArray, TOrdCollection, TRefArray, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TViewPubDataMembers, TViewPubFunctions, TThread, TKey, TMVA::Results, TTree, and TCollection.
Definition at line 268 of file TObject.cxx.
|
virtualinherited |
Returns the first derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas.
\[ D(h) = \frac{f(x+h) - f(x-h)}{2h} \]
the final estimate
\[ D = \frac{4D(h/2) - D(h)}{3} \]
"Numerical Methods for Scientists and Engineers", H.M.Antia, 2nd edition"
if the argument params is null, the current function parameters are used, otherwise the parameters in params are used.
the argument eps may be specified to control the step size (precision). the step size is taken as eps*(xmax-xmin). the default value (0.001) should be good enough for the vast majority of functions. Give a smaller value if your function has many changes of the second derivative in the function range.
Getting the error via TF1::DerivativeError: (total error = roundoff error + interpolation error) the estimate of the roundoff error is taken as follows:
\[ err = k\sqrt{f(x)^{2} + x^{2}deriv^{2}}\sqrt{\sum ai^{2}}, \]
where k is the double precision, ai are coefficients used in central difference formulas interpolation error is decreased by making the step size h smaller.
|
virtualinherited |
Returns the second derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas.
\[ D(h) = \frac{f(x+h) - 2f(x) + f(x-h)}{h^{2}} \]
the final estimate
\[ D = \frac{4D(h/2) - D(h)}{3} \]
"Numerical Methods for Scientists and Engineers", H.M.Antia, 2nd edition"
if the argument params is null, the current function parameters are used, otherwise the parameters in params are used.
the argument eps may be specified to control the step size (precision). the step size is taken as eps*(xmax-xmin). the default value (0.001) should be good enough for the vast majority of functions. Give a smaller value if your function has many changes of the second derivative in the function range.
Getting the error via TF1::DerivativeError: (total error = roundoff error + interpolation error) the estimate of the roundoff error is taken as follows:
\[ err = k\sqrt{f(x)^{2} + x^{2}deriv^{2}}\sqrt{\sum ai^{2}}, \]
where k is the double precision, ai are coefficients used in central difference formulas interpolation error is decreased by making the step size h smaller.
|
virtualinherited |
Returns the third derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas.
\[ D(h) = \frac{f(x+2h) - 2f(x+h) + 2f(x-h) - f(x-2h)}{2h^{3}} \]
the final estimate
\[ D = \frac{4D(h/2) - D(h)}{3} \]
"Numerical Methods for Scientists and Engineers", H.M.Antia, 2nd edition"
if the argument params is null, the current function parameters are used, otherwise the parameters in params are used.
the argument eps may be specified to control the step size (precision). the step size is taken as eps*(xmax-xmin). the default value (0.001) should be good enough for the vast majority of functions. Give a smaller value if your function has many changes of the second derivative in the function range.
Getting the error via TF1::DerivativeError: (total error = roundoff error + interpolation error) the estimate of the roundoff error is taken as follows:
\[ err = k\sqrt{f(x)^{2} + x^{2}deriv^{2}}\sqrt{\sum ai^{2}}, \]
where k is the double precision, ai are coefficients used in central difference formulas interpolation error is decreased by making the step size h smaller.
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staticinherited |
|
inherited |
Compute distance from point px,py to a line.
Compute the closest distance of approach from point px,py to this line. The distance is computed in pixels units.
Algorithm:
Definition at line 210 of file TAttLine.cxx.
Compute distance from point px,py to a function.
Compute the closest distance of approach from point px,py to this function. The distance is computed in pixels units.
Note that px is called with a negative value when the TF1 is in TGraph or TH1 list of functions. In this case there is no point looking at the histogram axis.
Reimplemented from TObject.
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protectedvirtualinherited |
Interface to ErrorHandler (protected).
Reimplemented in TTreeViewer, and TThread.
Definition at line 1059 of file TObject.cxx.
|
protectedinherited |
|
overridevirtualinherited |
Draw this function with its current attributes.
Possible option values are:
| option | description |
|---|---|
| "SAME" | superimpose on top of existing picture |
| "L" | connect all computed points with a straight line |
| "C" | connect all computed points with a smooth curve |
| "FC" | draw a fill area below a smooth curve |
Note that the default value is "L". Therefore to draw on top of an existing picture, specify option "LSAME"
NB. You must use DrawCopy if you want to draw several times the same function in the current canvas.
Reimplemented from TObject.
|
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 TSystemDirectory, TSystemFile, and TGFrame.
Definition at line 308 of file TObject.cxx.
Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
If pad was not selected - gPad will be used.
Reimplemented in TSystemDirectory, TSystemFile, TGFrame, TAxis, and TCanvas.
Definition at line 319 of file TObject.cxx.
Draw a copy of this function with its current attributes.
This function MUST be used instead of Draw when you want to draw the same function with different parameters settings in the same canvas.
Possible option values are:
| option | description |
|---|---|
| "SAME" | superimpose on top of existing picture |
| "L" | connect all computed points with a straight line |
| "C" | connect all computed points with a smooth curve |
Note that the default value is "F". Therefore to draw on top of an existing picture, specify option "SL"
Reimplemented from TF1.
Draw derivative of this function.
An intermediate TGraph object is built and drawn with option. The function returns a pointer to the TGraph object. Do:
TGraph *g = (TGraph*)myfunc.DrawDerivative(option);
The resulting graph will be drawn into the current pad. If this function is used via the context menu, it recommended to create a new canvas/pad before invoking this function.
Draw integral of this function.
An intermediate TGraph object is built and drawn with option. The function returns a pointer to the TGraph object. Do:
TGraph *g = (TGraph*)myfunc.DrawIntegral(option);
The resulting graph will be drawn into the current pad. If this function is used via the context menu, it recommended to create a new canvas/pad before invoking this function.
|
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:
Reimplemented in TSystemFile, TCollection, TClass, TGFrame, and TGPack.
Definition at line 367 of file TObject.cxx.
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.
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inherited |
Evaluate the uncertainty of the function at location x due to the parameter uncertainties.
If covMatrix is nullptr, assumes uncorrelated uncertainties, otherwise the input covariance matrix (e.g. from a fit performed with option "S") is used. Implemented for 1-d only.
|
virtualinherited |
Execute method on this object with the given parameter string, e.g.
"3.14,1,\"text\"".
Reimplemented in TMethodCall, TCling, TInterpreter, ROOT::R::TRInterface, and TContextMenu.
Definition at line 378 of file TObject.cxx.
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virtualinherited |
Execute method on this object with parameters stored in the TObjArray.
The TObjArray should contain an argv vector like:
Reimplemented in TCling, TMethodCall, TInterpreter, ROOT::R::TRInterface, and TContextMenu.
Definition at line 398 of file TObject.cxx.
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.
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virtualinherited |
Encode TNamed into output buffer.
Reimplemented in TKeySQL, TSQLFile, TKeyXML, TXMLFile, TDirectoryFile, TFile, and TKey.
Definition at line 103 of file TNamed.cxx.
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 in TListOfEnums, TMap, TDirectory, TFolder, TROOT, TListOfTypes, TListOfTypes, TBtree, TCollection, THashList, THashTable, TList, TObjArray, TListOfDataMembers, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfFunctionTemplates, TViewPubDataMembers, TViewPubFunctions, TPad, TGeometry, THbookFile, TGraph, TGraph2D, TH1, RooAbsCollection, and RooLinkedList.
Definition at line 425 of file TObject.cxx.
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 in TMap, TDirectory, TFolder, TROOT, TListOfTypes, TBtree, TCollection, THashList, THashTable, TList, TObjArray, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TViewPubDataMembers, TViewPubFunctions, TPad, TGeometry, THbookFile, TGraph, TGraph2D, TH1, RooAbsCollection, and RooLinkedList.
Definition at line 435 of file TObject.cxx.
Fix the value of a parameter for a fit operation The specified value will be used in the fit and the parameter will be constant (nor varying) during fitting Note that when using pre-defined functions (e.g gaus), one needs to use the fit option 'B' to have the fix of the paramter effective.
See TH1::Fit(TF1*, Option_t *, Option_t *, Double_t, Double_t) for the fitting documentation and the fitting options.
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inlineinherited |
Return the Chisquare after fitting. See ROOT::Fit::FitResult::Chi2()
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staticinherited |
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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.
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staticinherited |
Return destructor only flag.
Definition at line 1196 of file TObject.cxx.
Return the fill area color.
Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.
Definition at line 32 of file TAttFill.h.
Return the fill area style.
Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.
Definition at line 33 of file TAttFill.h.
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virtualinherited |
Return a pointer to the histogram used to visualise the function Note that this histogram is managed by the function and in same case it is automatically deleted when some TF1 functions are called such as TF1::SetParameters, TF1::SetNpx, TF1::SetRange It is then reccomended either to clone the return object or calling again teh GetHistogram function whenever is needed.
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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 TSystemFile, TGeoVolume, TASImage, TGMainFrame, TKey, ROOT::Experimental::XRooFit::xRooNode, TBranch, TVirtualBranchBrowsable, TMethodBrowsable, and TBranchElement.
Definition at line 472 of file TObject.cxx.
Return the line color.
Reimplemented in TGraphMultiErrors, and TGWin32VirtualXProxy.
Definition at line 36 of file TAttLine.h.
Return the line style.
Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.
Definition at line 37 of file TAttLine.h.
Return the line width.
Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.
Definition at line 38 of file TAttLine.h.
Return the marker color.
Reimplemented in TGWin32VirtualXProxy.
Definition at line 33 of file TAttMarker.h.
Internal helper function that returns the line width of the given marker style (0 = filled marker)
Definition at line 305 of file TAttMarker.cxx.
Return the marker size.
Reimplemented in TGWin32VirtualXProxy.
Definition at line 35 of file TAttMarker.h.
Return the marker style.
Reimplemented in TGWin32VirtualXProxy.
Definition at line 34 of file TAttMarker.h.
Internal helper function that returns the corresponding marker style with line width 1 for the given style.
Definition at line 254 of file TAttMarker.cxx.
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virtualinherited |
Returns the maximum value of the function.
Method: First, the grid search is used to bracket the maximum with the step size = (xmax-xmin)/fNpx. This way, the step size can be controlled via the SetNpx() function. If the function is unimodal or if its extrema are far apart, setting the fNpx to a small value speeds the algorithm up many times. Then, Brent's method is applied on the bracketed interval epsilon (default = 1.E-10) controls the relative accuracy (if |x| > 1 ) and absolute (if |x| < 1) and maxiter (default = 100) controls the maximum number of iteration of the Brent algorithm If the flag logx is set the grid search is done in log step size This is done automatically if the log scale is set in the current Pad
NOTE: see also TF1::GetMaximumX and TF1::GetX
Reimplemented in TF2.
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virtualinherited |
Returns the X value corresponding to the maximum value of the function.
Method: First, the grid search is used to bracket the maximum with the step size = (xmax-xmin)/fNpx. This way, the step size can be controlled via the SetNpx() function. If the function is unimodal or if its extrema are far apart, setting the fNpx to a small value speeds the algorithm up many times. Then, Brent's method is applied on the bracketed interval epsilon (default = 1.E-10) controls the relative accuracy (if |x| > 1 ) and absolute (if |x| < 1) and maxiter (default = 100) controls the maximum number of iteration of the Brent algorithm If the flag logx is set the grid search is done in log step size This is done automatically if the log scale is set in the current Pad
NOTE: see also TF1::GetX
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inlineinherited |
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virtualinherited |
Returns the minimum value of the function on the (xmin, xmax) interval.
Method: First, the grid search is used to bracket the maximum with the step size = (xmax-xmin)/fNpx. This way, the step size can be controlled via the SetNpx() function. If the function is unimodal or if its extrema are far apart, setting the fNpx to a small value speeds the algorithm up many times. Then, Brent's method is applied on the bracketed interval epsilon (default = 1.E-10) controls the relative accuracy (if |x| > 1 ) and absolute (if |x| < 1) and maxiter (default = 100) controls the maximum number of iteration of the Brent algorithm If the flag logx is set the grid search is done in log step size This is done automatically if the log scale is set in the current Pad
NOTE: see also TF1::GetMaximumX and TF1::GetX
Reimplemented in TF2.
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virtualinherited |
Returns the X value corresponding to the minimum value of the function on the (xmin, xmax) interval.
Method: First, the grid search is used to bracket the maximum with the step size = (xmax-xmin)/fNpx. This way, the step size can be controlled via the SetNpx() function. If the function is unimodal or if its extrema are far apart, setting the fNpx to a small value speeds the algorithm up many times. Then, Brent's method is applied on the bracketed interval epsilon (default = 1.E-10) controls the relative accuracy (if |x| > 1 ) and absolute (if |x| < 1) and maxiter (default = 100) controls the maximum number of iteration of the Brent algorithm If the flag logx is set the grid search is done in log step size This is done automatically if the log scale is set in the current Pad
NOTE: see also TF1::GetX
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protectedvirtualinherited |
Find the minimum of a function of whatever dimension.
While GetMinimum works only for 1D function , GetMinimumNDim works for all dimensions since it uses the minimizer interface vector x at beginning will contained the initial point, on exit will contain the result
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inlineoverridevirtualinherited |
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virtualinherited |
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virtualinherited |
Redefines TObject::GetObjectInfo.
Displays the function info (x, function value) corresponding to cursor position px,py
Reimplemented from TObject.
Reimplemented in TF2.
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staticinherited |
Get status of object stat flag.
Definition at line 1181 of file TObject.cxx.
Reimplemented in TGeoVolume, TArrow, TGaxis, TLegendEntry, TPave, TPolyLine, TAxis3D, THelix, TNode, TPolyLine3D, TPolyMarker3D, TH1, TPolyMarker, TFile, TMapFile, TPSocket, TSocket, TUDPSocket, TSelector, and TPoints3DABC.
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virtualinherited |
Compute Quantiles for density distribution of this function.
Quantile x_p of a probability distribution Function F is defined as
\[ F(x_{p}) = \int_{xmin}^{x_{p}} f dx = p \text{with} 0 <= p <= 1. \]
For instance the median \( x_{\frac{1}{2}} \) of a distribution is defined as that value of the random variable for which the distribution function equals 0.5:
\[ F(x_{\frac{1}{2}}) = \prod(x < x_{\frac{1}{2}}) = \frac{1}{2} \]
| [in] | n | maximum size of array xp and size of array p |
| [out] | xp | array filled with n quantiles evaluated at p. Memory has to be preallocated by caller. |
| [in] | p | array of cumulative probabilities where quantiles should be evaluated. It is assumed to contain at least n values. |
Getting quantiles from two histograms and storing results in a TGraph, a so-called QQ-plot
TGraph *gr = new TGraph(nprob);
f1->GetQuantiles(nprob,gr->GetX(),p);
f2->GetQuantiles(nprob,gr->GetY(),p);
gr->Draw("alp");
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virtualinherited |
Return a random number following this function shape in [xmin,xmax].
The distribution contained in the function fname (TF1) is integrated over the channel contents. It is normalized to 1. For each bin the integral is approximated by a parabola. The parabola coefficients are stored as non persistent data members Getting one random number implies:
The parabolic approximation is very good as soon as the number of bins is greater than 50.
| xmin | minimum value for generated random numbers |
| xmax | maximum value for generated random numbers |
| rng | (optional) random number generator pointer |
| option | (optional) : LOG or LIN to force the usage of a log or linear scale for computing the cumulative integral table |
IMPORTANT NOTE
The integral of the function is computed at fNpx points. If the function has sharp peaks, you should increase the number of points (SetNpx) such that the peak is correctly tabulated at several points.
Reimplemented in TF2.
Return a random number following this function shape.
| rng | Random number generator. By default (or when passing a nullptr) the global gRandom is used |
| option | Option string which controls the binning used to compute the integral. Default mode is automatic depending of xmax, xmin and Npx (function points). Possible values are:
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The distribution contained in the function fname (TF1) is integrated over the channel contents. It is normalized to 1. For each bin the integral is approximated by a parabola. The parabola coefficients are stored as non persistent data members Getting one random number implies:
The user can provide as optional parameter a Random number generator. By default gRandom is used
If the ratio fXmax/fXmin > fNpx the integral is tabulated in log scale in x A log scale for the intergral is also always used if a user specifies the "LOG" option Instead if a user requestes a "LIN" option the integral binning is never done in log scale whatever the fXmax/fXmin ratio is
Note that the parabolic approximation is very good as soon as the number of bins is greater than 50.
Reimplemented in TF2.
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inlineoverridevirtualinherited |
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virtualinherited |
Return the unique object id.
Definition at line 480 of file TObject.cxx.
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virtualinherited |
Returns the X value corresponding to the function value fy for (xmin<x<xmax).
in other words it can find the roots of the function when fy=0 and successive calls by changing the next call to [xmin+eps,xmax] where xmin is the previous root.
Method: First, the grid search is used to bracket the maximum with the step size = (xmax-xmin)/fNpx. This way, the step size can be controlled via the SetNpx() function. If the function is unimodal or if its extrema are far apart, setting the fNpx to a small value speeds the algorithm up many times. Then, Brent's method is applied on the bracketed interval epsilon (default = 1.E-10) controls the relative accuracy (if |x| > 1 ) and absolute (if |x| < 1) and maxiter (default = 100) controls the maximum number of iteration of the Brent algorithm If the flag logx is set the grid search is done in log step size This is done automatically if the log scale is set in the current Pad
NOTE: see also TF1::GetMaximumX, TF1::GetMinimumX
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inherited |
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inherited |
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inherited |
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virtualinherited |
Compute the gradient wrt parameters If the TF1 object is based on a formula expression (TFormula) and TFormula::GenerateGradientPar() has been successfully called automatic differentiation using CLAD is used instead of the default numerical differentiation.
| x | point, were the gradient is computed |
| grad | used to return the computed gradient, assumed to be of at least fNpar size |
| eps | if the errors of parameters have been computed, the step used in numerical differentiation is eps*parameter_error. |
if the errors have not been computed, step=eps is used default value of eps = 0.01 Method is the same as in Derivative() function
If a parameter is fixed, the gradient on this parameter = 0
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virtualinherited |
Compute the gradient (derivative) wrt a parameter ipar.
| ipar | index of parameter for which the derivative is computed |
| x | point, where the derivative is computed |
| eps | - if the errors of parameters have been computed, the step used in numerical differentiation is eps*parameter_error. |
if the errors have not been computed, step=eps is used default value of eps = 0.01 Method is the same as in Derivative() function
If a parameter is fixed, the gradient on this parameter = 0
Execute action in response of a timer timing out.
This method must be overridden if an object has to react to timers.
Reimplemented in TGWindow, TGuiBldDragManager, TGraphTime, TGLEventHandler, TGCommandPlugin, TGDNDManager, TGFileContainer, TGPopupMenu, TGScrollBar, TGShutter, TGTextEdit, TGTextEditor, TGTextEntry, TGTextView, TGToolTip, TGHtml, and TTreeViewer.
Definition at line 516 of file TObject.cxx.
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inlineoverridevirtualinherited |
Return hash value for this object.
Note: If this routine is overloaded in a derived class, this derived class should also add
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
Reimplemented from TObject.
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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)
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inlineinherited |
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.
Returns kTRUE if object inherits from class "classname".
Reimplemented in TClass.
Definition at line 549 of file TObject.cxx.
Returns kTRUE if object inherits from TClass cl.
Reimplemented in TClass.
Definition at line 557 of file TObject.cxx.
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staticinherited |
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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 TSystemFile, TInspectorObject, TGFrame, and ROOT::Experimental::XRooFit::xRooNode.
Definition at line 570 of file TObject.cxx.
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virtualinherited |
Return Error on Integral of a parametric function between a and b due to the parameter uncertainties and their covariance matrix from the fit.
In addition to the integral limits, this method takes as input a pointer to the fitted parameter values and a pointer the covariance matrix from the fit. These pointers should be retrieved from the previously performed fit using the TFitResult class. Note that to get the TFitResult, te fit should be done using the fit option S. Example:
IMPORTANT NOTE1:
A null pointer to the parameter values vector and to the covariance matrix can be passed. In this case, when the parameter values pointer is null, the parameter values stored in this TF1 function object are used in the integral error computation. When the poassed pointer to the covariance matrix is null, a covariance matrix from the last fit is retrieved from a global fitter instance when it exists. Note that the global fitter instance esists only when ROOT is not running with multi-threading enabled (ROOT::IsImplicitMTEnabled() == True). When the ovariance matrix from the last fit cannot be retrieved, an error message is printed and a zero value is returned.
IMPORTANT NOTE2:
When no covariance matrix is passed and in the meantime a fit is done using another function, the routine will signal an error and it will return zero only when the number of fit parameter is different than the values stored in TF1 (TF1::GetNpar() ). In the case that npar is the same, an incorrect result is returned.
IMPORTANT NOTE3:
The user must pass a pointer to the elements of the full covariance matrix dimensioned with the right size (npar*npar), where npar is the total number of parameters (TF1::GetNpar()), including also the fixed parameters. The covariance matrix must be retrieved from the TFitResult class as shown above and not from TVirtualFitter::GetCovarianceMatrix() function.
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virtualinherited |
Return Error on Integral of a parametric function with dimension larger than one between a[] and b[] due to the parameters uncertainties.
For a TF1 with dimension larger than 1 (for example a TF2 or TF3) TF1::IntegralMultiple is used for the integral calculation
In addition to the integral limits, this method takes as input a pointer to the fitted parameter values and a pointer the covariance matrix from the fit. These pointers should be retrieved from the previously performed fit using the TFitResult class. Note that to get the TFitResult, te fit should be done using the fit option S. Example:
IMPORTANT NOTE1:
A null pointer to the parameter values vector and to the covariance matrix can be passed. In this case, when the parameter values pointer is null, the parameter values stored in this TF1 function object are used in the integral error computation. When the poassed pointer to the covariance matrix is null, a covariance matrix from the last fit is retrieved from a global fitter instance when it exists. Note that the global fitter instance esists only when ROOT is not running with multi-threading enabled (ROOT::IsImplicitMTEnabled() == True). When the ovariance matrix from the last fit cannot be retrieved, an error message is printed and a zero value is returned.
IMPORTANT NOTE2:
When no covariance matrix is passed and in the meantime a fit is done using another function, the routine will signal an error and it will return zero only when the number of fit parameter is different than the values stored in TF1 (TF1::GetNpar() ). In the case that npar is the same, an incorrect result is returned.
IMPORTANT NOTE3:
The user must pass a pointer to the elements of the full covariance matrix dimensioned with the right size (npar*npar), where npar is the total number of parameters (TF1::GetNpar()), including also the fixed parameters. The covariance matrix must be retrieved from the TFitResult class as shown above and not from TVirtualFitter::GetCovarianceMatrix() function.
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virtualinherited |
This function computes, to an attempted specified accuracy, the value of the integral.
| [in] | n | Number of dimensions [2,15] |
| [in] | a,b | One-dimensional arrays of length >= N . On entry A[i], and B[i], contain the lower and upper limits of integration, respectively. |
| [in] | maxpts | Maximum number of function evaluations to be allowed. maxpts >= 2^n +2*n*(n+1) +1 if maxpts<minpts, maxpts is set to 10*minpts |
| [in] | epsrel | Specified relative accuracy. |
| [in] | epsabs | Specified absolute accuracy. The integration algorithm will attempt to reach either the relative or the absolute accuracy. In case the maximum function called is reached the algorithm will stop earlier without having reached the desired accuracy |
| [out] | relerr | Contains, on exit, an estimation of the relative accuracy of the result. |
| [out] | nfnevl | number of function evaluations performed. |
| [out] | ifail | 0 Normal exit. At least minpts and at most maxpts calls to the function were performed. 1 maxpts is too small for the specified accuracy eps. The result and relerr contain the values obtainable for the specified value of maxpts. 3 n<2 or n>15 |
Method:
The default method used is the Genz-Mallik adaptive multidimensional algorithm using the class ROOT::Math::AdaptiveIntegratorMultiDim (see the reference documentation of the class)
Other methods can be used by setting ROOT::Math::IntegratorMultiDimOptions::SetDefaultIntegrator() to different integrators. Other possible integrators are MC integrators based on the ROOT::Math::GSLMCIntegrator class Possible methods are : Vegas, Miser or Plain IN case of MC integration the accuracy is determined by the number of function calls, one should be careful not to use a too large value of maxpts
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virtualinherited |
Return Integral of function between a and b using the given parameter values and relative and absolute tolerance.
The default integrator defined in ROOT::Math::IntegratorOneDimOptions::DefaultIntegrator() is used If ROOT contains the MathMore library the default integrator is set to be the adaptive ROOT::Math::GSLIntegrator (based on QUADPACK) or otherwise the ROOT::Math::GaussIntegrator is used See the reference documentation of these classes for more information about the integration algorithms To change integration algorithm just do : ROOT::Math::IntegratorOneDimOptions::SetDefaultIntegrator(IntegratorName); Valid integrator names are:
In order to use the GSL integrators one needs to have the MathMore library installed
Note 1:
Values of the function f(x) at the interval end-points A and B are not required. The subprogram may therefore be used when these values are undefined.
Note 2:
Instead of TF1::Integral, you may want to use the combination of TF1::CalcGaussLegendreSamplingPoints and TF1::IntegralFast. See an example with the following script:
This example produces the following results:
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protectedinherited |
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inlineoverridevirtual |
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inlineinherited |
IsDestructed.
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 TObjString, TQCommand, TPair, and TGObject.
Definition at line 589 of file TObject.cxx.
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virtualinherited |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
Reimplemented in TDirectory, TFolder, TRemoteObject, TROOT, TSystemDirectory, TTask, TCollection, TPair, TBrowserObject, TBaseClass, TClass, TGeoManager, TGeoNode, TGeoNodeMatrix, TGeoVolume, TGeoOverlap, TGeoTrack, TCanvas, TPad, TAxis3D, TGeometry, TNode, TRootIconList, THbookFile, THbookKey, THnBase, ROOT::Internal::THnBaseBrowsable, TMultiDimFit, TPrincipal, TKey, TMapFile, TSPlot, TDatabasePDG, TParticleClassPDG, TApplicationRemote, ROOT::Experimental::XRooFit::xRooNode, TBranch, TVirtualBranchBrowsable, TBranchClones, TBranchElement, TBranchObject, TBranchSTL, and TTree.
Definition at line 579 of file TObject.cxx.
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inlineinherited |
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inlineoverridevirtualinherited |
Reimplemented from TObject.
Reimplemented in TStructNodeProperty.
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inlinevirtualinherited |
Reimplemented in TGWin32VirtualXProxy.
Definition at line 49 of file TAttFill.h.
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virtualinherited |
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inlineinherited |
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overridevirtualinherited |
List TNamed name and title.
Reimplemented from TObject.
Reimplemented in ROOT::Experimental::XRooFit::xRooBrowser, TVirtualStreamerInfo, TROOT, TStreamerElement, TStreamerBase, TStreamerSTL, TText, TStreamerInfo, TTask, and TNode.
Definition at line 112 of file TNamed.cxx.
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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.
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virtualinherited |
Change current fill area attributes if necessary.
Definition at line 212 of file TAttFill.cxx.
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virtualinherited |
Change current line attributes if necessary.
Definition at line 246 of file TAttLine.cxx.
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virtualinherited |
Change current marker attributes if necessary.
Definition at line 322 of file TAttMarker.cxx.
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virtualinherited |
Change current fill area attributes on speicifed pad.
Definition at line 221 of file TAttFill.cxx.
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virtualinherited |
Change current line attributes on specified pad.
Definition at line 255 of file TAttLine.cxx.
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virtualinherited |
Change current marker attributes if necessary on specified pad.
Definition at line 331 of file TAttMarker.cxx.
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virtualinherited |
Return nth moment of function between a and b.
See TF1::Integral() for parameter definitions
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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 TMessageHandler, TNotifyLink< Type >, TNotifyLink< RNoCleanupNotifierHelper >, TNotifyLink< ROOT::Detail::TBranchProxy >, TNotifyLink< TTreeReader >, TFileHandler, TSignalHandler, TStdExceptionHandler, TProcessEventTimer, TTimer, TIdleTimer, TSingleShotCleaner, TCollection, TRefTable, TBrowserTimer, TInterruptHandler, TTermInputHandler, TThreadTimer, TGLRedrawTimer, TViewTimer, TGContainerKeyboardTimer, TGContainerScrollTimer, TGInputHandler, TViewUpdateTimer, TPopupDelayTimer, TRepeatTimer, TSBRepeatTimer, TGTextEditHist, TInsCharCom, TDelCharCom, TBreakLineCom, TInsTextCom, TDelTextCom, TBlinkTimer, TTipDelayTimer, TGuiBldDragManagerRepeatTimer, TARInterruptHandler, TASLogHandler, TASInterruptHandler, TASSigPipeHandler, TASInputHandler, TSocketHandler, TTimeOutTimer, TBranchElement, TBranchRef, TLeafObject, TSelector, TTree, TSelectorDraw, TSelectorEntries, TTreeFormula, TTreeFormulaManager, TTreeReader, h1analysis, h1analysisTreeReader, and TSysEvtHandler.
Definition at line 618 of file TObject.cxx.
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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.
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inherited |
Operator delete for sized deallocation.
Definition at line 1234 of file TObject.cxx.
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inherited |
Operator delete.
Definition at line 1212 of file TObject.cxx.
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inherited |
Only called by placement new when throwing an exception.
Definition at line 1266 of file TObject.cxx.
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inherited |
Operator delete [] for sized deallocation.
Definition at line 1245 of file TObject.cxx.
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inherited |
Operator delete [].
Definition at line 1223 of file TObject.cxx.
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inherited |
Only called by placement new[] when throwing an exception.
Definition at line 1274 of file TObject.cxx.
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inlineinherited |
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inlineinherited |
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inlineinherited |
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overridevirtualinherited |
Paint this function with its current attributes.
The function is going to be converted in an histogram and the corresponding histogram is painted. The painted histogram can be retrieved calling afterwards the method TF1::GetHistogram()
Reimplemented from TObject.
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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 TPad, TFrame, and TVirtualPad.
Definition at line 640 of file TObject.cxx.
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overridevirtualinherited |
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 TKeyXML, TBuffer, TKey, and TKeySQL.
Definition at line 673 of file TObject.cxx.
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virtualinherited |
Recursively remove this object from a list.
Typically implemented by classes that can contain multiple references to a same object.
Reimplemented in THistPainter, TCling, TDirectory, TFolder, TProcessID, TROOT, TCollection, THashList, TList, TObjArray, TBrowser, TObjectSpy, TObjectRefSpy, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, ROOT::Internal::TCheckHashRecursiveRemoveConsistency, TViewPubDataMembers, TViewPubFunctions, TDialogCanvas, TInspectCanvas, TPad, TLegend, TGeometry, TNode, ROOT::RBrowserDataCleanup, TFitEditor, TGedEditor, TH1Editor, TH2Editor, TGFileBrowser, TRootBrowser, TRootBrowserLite, TRootContextMenu, TRootBrowserHistory, TEfficiency, TGraph, TGraph2D, TH1, THStack, TMultiGraph, TFileMerger, RooAbsCollection, RooAbsData, RooLinkedList, RooMCStudy, RooWorkspace, TChain, TFriendElement, TTree, TTreePlayer, and TVirtualPad.
Definition at line 684 of file TObject.cxx.
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staticinherited |
See TF1::RejectPoint above.
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virtualinherited |
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virtualinherited |
Reset this fill attributes to default values.
Reimplemented in TGWin32VirtualXProxy.
Definition at line 231 of file TAttFill.cxx.
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virtualinherited |
Reset this line attributes to default values.
Reimplemented in TGWin32VirtualXProxy.
Definition at line 279 of file TAttLine.cxx.
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Reset this marker attributes to the default values.
Reimplemented in TGWin32VirtualXProxy.
Definition at line 342 of file TAttMarker.cxx.
Save this object in the file specified by filename.
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 in TSpline, TFolder, TGeoVolume, TClassTree, TPad, TPaveClass, TGObject, TSpline3, TSpline5, ROOT::Experimental::XRooFit::xRooNode, TTreePerfStats, TVirtualPad, TGraph, and TH1.
Definition at line 708 of file TObject.cxx.
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Save fill attributes as C++ statement(s) on output stream out.
Definition at line 240 of file TAttFill.cxx.
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Save line attributes as C++ statement(s) on output stream out.
Definition at line 289 of file TAttLine.cxx.
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Save line attributes as C++ statement(s) on output stream out.
Definition at line 352 of file TAttMarker.cxx.
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Save primitive as a C++ statement(s) on output stream out.
Reimplemented from TF1.
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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.
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Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.
Definition at line 845 of file TObject.cxx.
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Save object name and title into the output stream "out".
Definition at line 135 of file TNamed.cxx.
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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.
Set or unset the user status bits as specified in f.
Definition at line 888 of file TObject.cxx.
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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 TSystemDirectory, TSystemFile, TPad, TGFrame, TAxis, TBrowser, TPaveStats, TGedFrame, TRootBrowserLite, and RooPlot.
Definition at line 871 of file TObject.cxx.
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Set destructor only flag.
Definition at line 1204 of file TObject.cxx.
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Invoke the DialogCanvas Fill attributes.
Reimplemented in TGWin32VirtualXProxy.
Definition at line 251 of file TAttFill.cxx.
Set the fill area color.
Reimplemented in TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSVG, TTeXDump, TSpider, and TGraphMultiErrors.
Definition at line 40 of file TAttFill.h.
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Set a fill color.
Definition at line 270 of file TAttFill.cxx.
Set a transparent fill color.
| fcolor | defines the fill color |
| falpha | defines the percentage of opacity from 0. (fully transparent) to 1. (fully opaque). |
Reimplemented in TGraphMultiErrors.
Definition at line 262 of file TAttFill.cxx.
Set the fill area style.
Reimplemented in TGraphMultiErrors, TPad, TSpider, TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, and TGX11.
Definition at line 42 of file TAttFill.h.
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Set the result from the fit parameter values, errors, chi2, etc... Optionally a pointer to a vector (with size fNpar) of the parameter indices in the FitResult can be passed This is useful in the case of a combined fit with different functions, and the FitResult contains the global result By default it is assume that indpar = {0,1,2,....,fNpar-1}.
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Invoke the DialogCanvas Line attributes.
Reimplemented in TGWin32VirtualXProxy.
Definition at line 306 of file TAttLine.cxx.
Set the line color.
Reimplemented in TEveTrackList, ROOT::Experimental::REveTrackList, TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSVG, TTeXDump, TEveLine, TEveStraightLineSet, ROOT::Experimental::REveLine, ROOT::Experimental::REveStraightLineSet, TParallelCoordRange, TSpider, TGraphMultiErrors, TGeoVolume, and TGeoVolumeMulti.
Definition at line 44 of file TAttLine.h.
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Definition at line 322 of file TAttLine.cxx.
Set a transparent line color.
| lcolor | defines the line color |
| lalpha | defines the percentage of opacity from 0. (fully transparent) to 1. (fully opaque). |
Reimplemented in TGraphMultiErrors.
Definition at line 317 of file TAttLine.cxx.
Set the line style.
Reimplemented in TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSVG, TTeXDump, TGraphMultiErrors, TGeoVolume, TGeoVolumeMulti, TEveLine, ROOT::Experimental::REveLine, TEveTrackList, ROOT::Experimental::REveTrackList, and TSpider.
Definition at line 46 of file TAttLine.h.
Set the line width.
Reimplemented in TPDF, TPostScript, TSVG, TTeXDump, TGraphMultiErrors, TGeoVolume, TGeoVolumeMulti, TEveLine, ROOT::Experimental::REveLine, TEveTrackList, ROOT::Experimental::REveTrackList, TParallelCoordRange, TSpider, TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, and TPaletteAxis.
Definition at line 47 of file TAttLine.h.
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Invoke the DialogCanvas Marker attributes.
Reimplemented in TGWin32VirtualXProxy.
Definition at line 365 of file TAttMarker.cxx.
Set the marker color.
Reimplemented in TEveTrackList, ROOT::Experimental::REveTrackList, TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSVG, TTeXDump, TEveLine, TEvePointSet, ROOT::Experimental::REveLine, ROOT::Experimental::REvePointSet, TEvePointSetArray, and ROOT::Experimental::REvePointSetArray.
Definition at line 41 of file TAttMarker.h.
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Definition at line 381 of file TAttMarker.cxx.
Set a transparent marker color.
| mcolor | defines the marker color |
| malpha | defines the percentage of opacity from 0. (fully transparent) to 1. (fully opaque). |
Definition at line 376 of file TAttMarker.cxx.
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 TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TTeXDump, TEvePointSet, TEvePointSetArray, ROOT::Experimental::REvePointSet, ROOT::Experimental::REvePointSetArray, TEveTrackList, and ROOT::Experimental::REveTrackList.
Definition at line 48 of file TAttMarker.h.
Set the marker style.
Reimplemented in TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TEvePointSet, TEvePointSetArray, ROOT::Experimental::REvePointSet, ROOT::Experimental::REvePointSetArray, TEveTrackList, and ROOT::Experimental::REveTrackList.
Definition at line 43 of file TAttMarker.h.
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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 in TEveScene, TColor, TSystemDirectory, TSystemFile, TNode, TRotMatrix, TShape, TEfficiency, TFormula, TGraph2D, TH1, RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, ROOT::Experimental::XRooFit::xRooNode, TChain, TEventList, TTree, TGraph, and TDirectory.
Definition at line 149 of file TNamed.cxx.
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 in TContextMenu, TNode, TGraph2D, TH1, RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, and TGraph.
Definition at line 163 of file TNamed.cxx.
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Set the number of points used to draw the function.
The default number of points along x is 100 for 1-d functions and 30 for 2-d/3-d functions You can increase this value to get a better resolution when drawing pictures with sharp peaks or to get a better result when using TF1::GetRandom the minimum number of points is 4, the maximum is 10000000 for 1-d and 10000 for 2-d/3-d functions
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Turn on/off tracking of objects in the TObjectTable.
Definition at line 1188 of file TObject.cxx.
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Set lower and upper limits for parameter ipar.
The specified limits will be used in a fit operation. Note that when this function is a pre-defined function (e.g. gaus) one needs to use the fit option "B" to have the limits used in the fit. See TH1::Fit(TF1*, Option_t *, Option_t *, Double_t, Double_t) for the fitting documentation and the fitting options
To fix a parameter, use TF1::FixParameter
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Set the unique object id.
Definition at line 899 of file TObject.cxx.
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Return size of the TNamed part of the TObject.
Reimplemented in TSQLFile, TXMLFile, TDirectory, TDirectoryFile, TFile, and TKey.
Definition at line 182 of file TNamed.cxx.
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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.
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Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
Reimplemented in TCanvas, TPad, TFrame, TPaveStats, TPaveText, TAxis3D, TGraph, TH1, and TTree.
Definition at line 909 of file TObject.cxx.
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.
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Write this object to the current directory.
For more see the const version of this method.
Reimplemented in TSQLFile, TXMLFile, TDirectory, TBuffer, ROOT::TBufferMergerFile, TDirectoryFile, TFile, TParallelMergingFile, TCollection, TMap, and TTree.
Definition at line 989 of file TObject.cxx.
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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:
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 TSQLFile, TXMLFile, TDirectory, TBuffer, TDirectoryFile, TFile, TParallelMergingFile, TCollection, TMap, and TTree.
Definition at line 964 of file TObject.cxx.
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Fill area color.
Definition at line 24 of file TAttFill.h.
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Fill area style.
Definition at line 25 of file TAttFill.h.
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if true keep track of objects in TObjectTable
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Line color.
Definition at line 24 of file TAttLine.h.
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Line style.
Definition at line 25 of file TAttLine.h.
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Line width.
Definition at line 26 of file TAttLine.h.
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Marker color.
Definition at line 24 of file TAttMarker.h.
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protectedinherited |
Marker size.
Definition at line 26 of file TAttMarker.h.
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Marker style.
Definition at line 25 of file TAttMarker.h.
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