TF1 Class Reference

Python interface

The TF1 class has several additions for its use from Python, which are also available in its subclasses TF2 and TF3.

First, TF1 instance can be initialized with user-defined Python functions. Given a generic Python callable, the following can performed:

def func(x: numpy.ndarray, pars: numpy.ndarray) -> float:
    return pars[0] * x[0] * x[0] + x[1] * pars[0]
 
my_func = ROOT.TF1("my_func", func, -10, 10, npar=2, ndim=2)

Second, after performing the initialisation with a Python functor, the TF1 instance can be evaluated using the Pythonized TF1.EvalPar function. The pythonization allows passing in 1D(single set of x variables) or 2D(a dataset) NumPy arrays.

The following example shows how we can create a TF1 instance with a Python function and evaluate it on a dataset:

import ROOT
import math
import numpy as np
 
def pyf_tf1_coulomb(x, p):
    return p[1] * x[0] * x[1] / (p[0]**2) * math.exp(-p[2] / p[0])
 
rtf1_coulomb = ROOT.TF1("my_func", pyf_tf1_coulomb, -10, 10, ndims = 2, npars = 3)
 
# x dataset: 5 pairs of particle charges
x = np.array([
    [1.0, 10, 2.0],
    [1.5, 10, 2.5],
    [2.0, 10, 3.0],
    [2.5, 10, 3.5],
    [3.0, 10, 4.0]
])
 
params = np.array([
    [1.0],       # Distance between charges r
    [8.99e9],    # Coulomb constant k (in N·m²/C²)
    [0.1]        # Additional factor for modulation
])
 
# Slice to avoid the dummy column of 10's
res = rtf1_coulomb.EvalPar(x[:, ::2], params)

The below example defines a TF1 instance using the ROOT constructor, and sets its parameters using the Pythonized TF1.SetParameters function (i.e. without evaluating).

import numpy as np
 
# for illustration, a sinusoidal function with six parameters
myFunction = ROOT.TF1("myExampleFunction", "[0] + [1] * x + [2]*sin([3] * x) + [4]*cos([5] * x)", -5, 5)
 
# declare the parameters as a numpy.array or array.array 
myParams = np.array([0.04, 0.4, 3.0, 3.14, 1.5, 3.14])
 
# note: the following line would also work by setting all six parameters equal to 3.0
# myParams = np.array([3.0] * 6) 
 
myFunction.SetParameters(myParams)

Definition at line 182 of file TF1.h.

Classes
struct	TF1FunctorPointer
struct	TF1FunctorPointerImpl

Public Types
enum	{ kSingleKey = (1ULL << (0)) , kOverwrite = (1ULL << (1)) , kWriteDelete = (1ULL << (2)) }
enum	{   kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,   kBitMask = 0x00ffffff }
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
	TF1 ()
	TF1 (const char *name, const char *formula, Double_t xmin, Double_t xmax, Option_t *option)
	TF1 (const char *name, const char *formula, Double_t xmin=0, Double_t xmax=1, EAddToList addToGlobList=EAddToList::kDefault, bool vectorize=false)
template<class PtrObj, typename MemFn>
	TF1 (const char *name, const PtrObj &p, MemFn memFn, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim=1, EAddToList addToGlobList=EAddToList::kDefault)
	Template constructors from a pointer to any C++ class of type PtrObj with a specific member function of type MemFn.
	TF1 (const char *name, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim=1, EAddToList addToGlobList=EAddToList::kDefault)
	TF1 (const char *name, Double_t(*fcn)(const Double_t *, const Double_t *), Double_t xmin=0, Double_t xmax=1, Int_t npar=0, Int_t ndim=1, EAddToList addToGlobList=EAddToList::kDefault)
	TF1 (const char *name, Double_t(*fcn)(Double_t *, Double_t *), Double_t xmin=0, Double_t xmax=1, Int_t npar=0, Int_t ndim=1, EAddToList addToGlobList=EAddToList::kDefault)
template<typename Func>
	TF1 (const char *name, Func f, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim=1, EAddToList addToGlobList=EAddToList::kDefault)
	Template constructors from any C++ callable object, defining the operator() (double * , double *) and returning a double.
	TF1 (const char *name, ROOT::Math::ParamFunctor f, Double_t xmin=0, Double_t xmax=1, Int_t npar=0, Int_t ndim=1, EAddToList addToGlobList=EAddToList::kDefault)
template<class T>
	TF1 (const char *name, std::function< T(const T *data, const Double_t *param)> &fcn, Double_t xmin=0, Double_t xmax=1, Int_t npar=0, Int_t ndim=1, EAddToList addToGlobList=EAddToList::kDefault)
template<class T>
	TF1 (const char *name, T(*fcn)(const T *, const Double_t *), Double_t xmin=0, Double_t xmax=1, Int_t npar=0, Int_t ndim=1, EAddToList addToGlobList=EAddToList::kDefault)
	Constructor using a pointer to function.
	TF1 (const TF1 &f1)
	~TF1 () override
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)
virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.
void	Browse (TBrowser *b) override
	Browse object. May be overridden for another default action.
virtual Double_t	CentralMoment (Double_t n, Double_t a, Double_t b, const Double_t *params=nullptr, Double_t epsilon=0.000001)
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 clone of an object using the Streamer facility.
Int_t	Compare (const TObject *obj) const override
	Compare two TNamed objects.
void	Copy (TAttFill &attfill) const
void	Copy (TAttLine &attline) const
void	Copy (TAttMarker &attmarker) const
void	Copy (TObject &f1) const override
	Copy this to obj.
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
virtual Double_t	Derivative2 (Double_t x, Double_t *params=nullptr, Double_t epsilon=0.001) const
virtual Double_t	Derivative3 (Double_t x, Double_t *params=nullptr, Double_t epsilon=0.001) const
Int_t	DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)
Int_t	DistancetoPrimitive (Int_t px, Int_t py) override
	Computes distance from point (px,py) to the object.
void	Draw (Option_t *option="") override
	Default Draw method for all objects.
virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.
virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
virtual TF1 *	DrawCopy (Option_t *option="") const
virtual TObject *	DrawDerivative (Option_t *option="al")
virtual void	DrawF1 (Double_t xmin, Double_t xmax, Option_t *option="")
virtual TObject *	DrawIntegral (Option_t *option="al")
virtual void	Dump () const
	Dump contents of object on stdout.
virtual void	Error (const char *method, const char *msgfmt,...) const
	Issue error message.
virtual Double_t	Eval (Double_t x, Double_t y=0, Double_t z=0, Double_t t=0) const
virtual Double_t	EvalPar (const Double_t *x, const Double_t *params=nullptr)
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
virtual void	Execute (const char *method, const char *params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.
void	ExecuteEvent (Int_t event, Int_t px, Int_t py) override
	Execute action corresponding to an event at (px,py).
virtual void	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)
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
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
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
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
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
const char *	GetName () const override
	Returns name of object.
virtual Int_t	GetNDF () const
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
char *	GetObjectInfo (Int_t px, Int_t py) const override
	Returns string containing info about the object at position (px,py).
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
virtual const Double_t *	GetParErrors () const
virtual void	GetParLimits (Int_t ipar, Double_t &parmin, Double_t &parmax) const
virtual const char *	GetParName (Int_t ipar) const
virtual Int_t	GetParNumber (const char *name) const
virtual Double_t	GetProb () const
virtual Int_t	GetQuantiles (Int_t n, Double_t *xp, const Double_t *p)
virtual Double_t	GetRandom (Double_t xmin, Double_t xmax, TRandom *rng=nullptr, Option_t *opt=nullptr)
virtual Double_t	GetRandom (TRandom *rng=nullptr, Option_t *opt=nullptr)
virtual void	GetRange (Double_t &xmin, Double_t &xmax) const
virtual void	GetRange (Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) const
virtual void	GetRange (Double_t &xmin, Double_t &ymin, Double_t &zmin, Double_t &xmax, Double_t &ymax, Double_t &zmax) const
virtual Double_t	GetSave (const Double_t *x)
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
TAxis *	GetXaxis () const
virtual Double_t	GetXmax () const
virtual Double_t	GetXmin () const
TAxis *	GetYaxis () const
TAxis *	GetZaxis () const
virtual void	GradientPar (const Double_t *x, Double_t *grad, Double_t eps=0.01) const
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
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)
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)
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)
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)
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)
virtual Double_t	IntegralMultiple (Int_t n, const Double_t *a, const Double_t *b, Double_t epsrel, Double_t &relerr)
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)
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)
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
Bool_t	IsOnHeap () const
Bool_t	IsSortable () const override
virtual Bool_t	IsTransparent () const
virtual Bool_t	IsValid () const
bool	IsVectorized ()
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 ()
virtual void	Modify ()
virtual void	Modify ()
virtual void	ModifyOn (TVirtualPad &pad)
virtual void	ModifyOn (TVirtualPad &pad)
virtual void	ModifyOn (TVirtualPad &pad)
virtual Double_t	Moment (Double_t n, Double_t a, Double_t b, const Double_t *params=nullptr, Double_t epsilon=0.000001)
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
TF1 &	operator= (const TF1 &rhs)
void	Paint (Option_t *option="") override
	This method must be overridden if a class wants to paint itself.
virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.
void	Print (Option_t *option="") const override
	This method must be overridden when a class wants to print itself.
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)
virtual void	ResetAttFill (Option_t *option="")
virtual void	ResetAttLine (Option_t *option="")
virtual void	ResetAttMarker (Option_t *toption="")
void	ResetBit (UInt_t f)
virtual void	Save (Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax)
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)
virtual void	SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)
virtual void	SaveMarkerAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t sizdef=1)
void	SavePrimitive (std::ostream &out, Option_t *option="") override
	Save a primitive as a C++ statement(s) on output stream "out".
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 ()
virtual void	SetFillColor (Color_t fcolor)
	Set the fill area color.
void	SetFillColor (TColorNumber)
virtual void	SetFillColorAlpha (Color_t fcolor, Float_t falpha)
virtual void	SetFillStyle (Style_t fstyle)
	Set the fill area style.
virtual void	SetFitResult (const ROOT::Fit::FitResult &result, const Int_t *indpar=nullptr)
template<typename Func>
void	SetFunction (Func f)
template<class PtrObj, typename MemFn>
void	SetFunction (PtrObj &p, MemFn memFn)
virtual void	SetLineAttributes ()
virtual void	SetLineColor (Color_t lcolor)
	Set the line color.
void	SetLineColor (TColorNumber lcolor)
virtual void	SetLineColorAlpha (Color_t lcolor, Float_t lalpha)
virtual void	SetLineStyle (Style_t lstyle)
	Set the line style.
virtual void	SetLineWidth (Width_t lwidth)
	Set the line width.
virtual void	SetMarkerAttributes ()
virtual void	SetMarkerColor (Color_t mcolor=1)
	Set the marker color.
void	SetMarkerColor (TColorNumber lcolor)
virtual void	SetMarkerColorAlpha (Color_t mcolor, Float_t malpha)
virtual void	SetMarkerSize (Size_t msize=1)
	Set the marker size.
virtual void	SetMarkerStyle (Style_t mstyle=1)
	Set the marker style.
virtual void	SetMaximum (Double_t maximum=-1111)
virtual void	SetMinimum (Double_t minimum=-1111)
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)
void	SetNdim (Int_t ndim)
virtual void	SetNormalized (Bool_t flag)
virtual void	SetNpx (Int_t npx=100)
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)
virtual void	SetParErrors (const Double_t *errors)
virtual void	SetParLimits (Int_t ipar, Double_t parmin, Double_t parmax)
virtual void	SetParName (Int_t ipar, const char *name)
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="")
virtual void	SetRange (Double_t xmin, Double_t xmax)
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)
void	SetTitle (const char *title="") override
	Set the title of the TNamed.
virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.
virtual void	SetVectorized (Bool_t vectorized)
virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject.
void	Streamer (TBuffer &) override
	Stream an object of class TObject.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
virtual void	SysError (const char *method, const char *msgfmt,...) const
	Issue system error message.
Bool_t	TestBit (UInt_t f) const
Int_t	TestBits (UInt_t f) const
virtual void	Update ()
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 void	CalcGaussLegendreSamplingPoints (Int_t num, Double_t *x, Double_t *w, Double_t eps=3.0e-11)
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 Double_t	DerivativeError ()
static TF1 *	GetCurrent ()
static Longptr_t	GetDtorOnly ()
	Return destructor only flag.
static Width_t	GetMarkerLineWidth (Style_t style)
static Style_t	GetMarkerStyleBase (Style_t style)
static Bool_t	GetObjectStat ()
	Get status of object stat flag.
static void	InitStandardFunctions ()
static Bool_t	RejectedPoint ()
static void	RejectPoint (Bool_t reject=kTRUE)
static void	SetCurrent (TF1 *f1)
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
	TF1 (EFType functionType, const char *name, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim, EAddToList addToGlobList, TF1Parameters *params=nullptr, TF1FunctorPointer *functor=nullptr)
	General constructor for TF1. Most of the other constructors delegate on it.
Bool_t	ComputeCdfTable (Option_t *opt)
virtual TH1 *	DoCreateHistogram (Double_t xmin, Double_t xmax, Bool_t recreate=kFALSE)
virtual void	DoError (int level, const char *location, const char *fmt, va_list va) const
	Interface to ErrorHandler (protected).
void	DoInitialize (EAddToList addToGlobList)
virtual Double_t	GetMinMaxNDim (Double_t *x, Bool_t findmax, Double_t epsilon=0, Int_t maxiter=0) const
virtual void	GetRange (Double_t *xmin, Double_t *xmax) const
void	IntegrateForNormalization ()
void	MakeZombie ()
TString	ProvideSaveName (Option_t *option)
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
Double_t	fChisquare {}
	Function fit chisquare.
std::unique_ptr< TF1AbsComposition >	fComposition
	Pointer to composition (NSUM or CONV).
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.

Static Protected Attributes
static std::atomic< Bool_t >	fgAbsValue
static std::atomic< Bool_t >	fgAddToGlobList
static TF1 *	fgCurrent
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)
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

Friends
template<class Func>
struct	ROOT::Internal::TF1Builder

#include <TF1.h>

Inheritance diagram for TF1:

Member Enumeration Documentation

anonymous enum

anonymous enum

protectedinherited

Enumerator

kOnlyPrepStep

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

Definition at line 106 of file TObject.h.

anonymous enum

anonymous enum

inherited

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

Definition at line 99 of file TObject.h.

anonymous enum

anonymous enum

inherited

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

Definition at line 89 of file TObject.h.

EAddToList

enum class TF1::EAddToList

strong

Add to list behavior.

Enumerator
kDefault
kAdd
kNo

Definition at line 189 of file TF1.h.

EDeprecatedStatusBits

enum TObject::EDeprecatedStatusBits

inherited

Enumerator
kObjInCanvas	for backward compatibility only, use kMustCleanup

Definition at line 84 of file TObject.h.

EFType

enum TF1::EFType

protected

Enumerator
kFormula	Formula functions which can be stored,.
kPtrScalarFreeFcn	Pointer to scalar free function,.
kInterpreted	Interpreted functions constructed by name,.
kTemplVec	Vectorized free functions or TemplScalar functors evaluating on vectorized parameters,.
kTemplScalar	TemplScalar functors evaluating on scalar parameters.
kCompositionFcn

Definition at line 203 of file TF1.h.

EStatusBits

enum TF1::EStatusBits

Enumerator
kNotGlobal
kNotDraw

Definition at line 295 of file TF1.h.

Constructor & Destructor Documentation

TF1() [1/13]

TF1::TF1 ( EFType functionType, const char * name, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim, EAddToList addToGlobList, TF1Parameters * params = nullptr, TF1FunctorPointer * functor = nullptr )

inlineprotected

General constructor for TF1. Most of the other constructors delegate on it.

Definition at line 242 of file TF1.h.

TF1() [2/13]

TF1::TF1

(

)

TF1() [3/13]

TF1::TF1	(	const char *	name,
		const char *	formula,
		Double_t	xmin = 0,
		Double_t	xmax = 1,
		EAddToList	addToGlobList = EAddToList::kDefault,
		bool	vectorize = false )

TF1() [4/13]

TF1::TF1	(	const char *	name,
		const char *	formula,
		Double_t	xmin,
		Double_t	xmax,
		Option_t *	option )

TF1() [5/13]

TF1::TF1	(	const char *	name,
		Double_t	xmin,
		Double_t	xmax,
		Int_t	npar,
		Int_t	ndim = 1,
		EAddToList	addToGlobList = EAddToList::kDefault )

TF1() [6/13]

TF1::TF1	(	const char *	name,
		Double_t(*	fcn )(Double_t *, Double_t *),
		Double_t	xmin = 0,
		Double_t	xmax = 1,
		Int_t	npar = 0,
		Int_t	ndim = 1,
		EAddToList	addToGlobList = EAddToList::kDefault )

TF1() [7/13]

TF1::TF1	(	const char *	name,
		Double_t(*	fcn )(const Double_t *, const Double_t *),
		Double_t	xmin = 0,
		Double_t	xmax = 1,
		Int_t	npar = 0,
		Int_t	ndim = 1,
		EAddToList	addToGlobList = EAddToList::kDefault )

TF1() [8/13]

template<class T>

TF1::TF1 ( const char * name, std::function< T(const T *data, const Double_t *param)> & fcn, Double_t xmin = 0, Double_t xmax = 1, Int_t npar = 0, Int_t ndim = 1, EAddToList addToGlobList = EAddToList::kDefault )

inline

Definition at line 308 of file TF1.h.

TF1() [9/13]

template<class T>

TF1::TF1 ( const char * name, T(* fcn )(const T *, const Double_t *), Double_t xmin = 0, Double_t xmax = 1, Int_t npar = 0, Int_t ndim = 1, EAddToList addToGlobList = EAddToList::kDefault )

inline

Constructor using a pointer to function.

Parameters

[in]	name	object name
[in]	fcn	pointer to function
[in]	xmin,xmax	x axis limits
[in]	npar	is the number of free parameters used by the function
[in]	ndim	number of dimensions
[in]	addToGlobList	boolean marking if it should be added to global list

This constructor creates a function of type C when invoked with the normal C++ compiler.

Warning

A function created with this constructor cannot be Cloned

Definition at line 332 of file TF1.h.

TF1() [10/13]

TF1::TF1	(	const char *	name,
		ROOT::Math::ParamFunctor	f,
		Double_t	xmin = 0,
		Double_t	xmax = 1,
		Int_t	npar = 0,
		Int_t	ndim = 1,
		EAddToList	addToGlobList = EAddToList::kDefault )

TF1() [11/13]

template<typename Func>

TF1::TF1 ( const char * name, Func f, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim = 1, EAddToList addToGlobList = EAddToList::kDefault )

inline

Template constructors from any C++ callable object, defining the operator() (double * , double *) and returning a double.

The class name is not needed when using compile code, while it is required when using interpreted code via the specialized constructor with void *. An instance of the C++ function class or its pointer can both be used. The former is recommended when using C++ compiled code, but if CINT-compatibility is needed, then a pointer to the function class must be used. xmin and xmax specify the plotting range, npar is the number of parameters. See the tutorial math/exampleFunctor.C for an example of using this constructor

Definition at line 348 of file TF1.h.

TF1() [12/13]

template<class PtrObj, typename MemFn>

TF1::TF1 ( const char * name, const PtrObj & p, MemFn memFn, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim = 1, EAddToList addToGlobList = EAddToList::kDefault )

inline

Template constructors from a pointer to any C++ class of type PtrObj with a specific member function of type MemFn.

The member function must have the signature of (double * , double *) and returning a double. The class name and the method name are not needed when using compile code (the member function pointer is used in this case), while they are required when using interpreted code via the specialized constructor with void *. xmin and xmax specify the plotting range, npar is the number of parameters. See the tutorial math/exampleFunctor.C for an example of using this constructor

Definition at line 364 of file TF1.h.

TF1() [13/13]

TF1::TF1

(

const TF1 &

f1

)

~TF1()

TF1::~TF1 ( )

override

Member Function Documentation

AbstractMethod()

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

inherited

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

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

Warning

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

Note

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

Definition at line 1149 of file TObject.cxx.

AbsValue()

void TF1::AbsValue ( Bool_t reject = kTRUE )

static

AddParameter()

virtual void TF1::AddParameter ( const TString & name, Double_t value )

inlinevirtual

Definition at line 371 of file TF1.h.

AddToGlobalList()

virtual Bool_t TF1::AddToGlobalList ( Bool_t on = kTRUE )

virtual

AddToTObjectTable()

void TObject::AddToTObjectTable ( TObject * op )

staticprivateinherited

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

Included here to avoid circular dependency between header files.

Definition at line 195 of file TObject.cxx.

AppendPad()

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

virtualinherited

Append graphics object to current pad.

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

Definition at line 204 of file TObject.cxx.

Browse()

void TF1::Browse ( TBrowser * b )

overridevirtual

Browse object. May be overridden for another default action.

Reimplemented from TObject.

CalcGaussLegendreSamplingPoints()

void TF1::CalcGaussLegendreSamplingPoints ( Int_t num, Double_t * x, Double_t * w, Double_t eps = 3.0e-11 )

static

CentralMoment()

virtual Double_t TF1::CentralMoment ( Double_t n, Double_t a, Double_t b, const Double_t * params = nullptr, Double_t epsilon = 0.000001 )

virtual

CheckedHash()

ULong_t TObject::CheckedHash ( )

inlineinherited

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

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

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

Definition at line 332 of file TObject.h.

Class()

TClass * TF1::Class ( )

static

Returns

TClass describing this class

Class_Name()

const char * TF1::Class_Name ( )

static

Returns

Name of this class

Class_Version()

constexpr Version_t TF1::Class_Version ( )

inlinestaticconstexpr

Returns

Version of this class

Definition at line 694 of file TF1.h.

ClassName()

const char * TObject::ClassName ( ) const

virtualinherited

Returns name of class to which the object belongs.

Definition at line 227 of file TObject.cxx.

Clear()

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

overridevirtualinherited

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

Reimplemented from TObject.

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

Definition at line 63 of file TNamed.cxx.

Clone()

TObject * TF1::Clone ( const char * newname = nullptr ) const

overridevirtual

Make a clone of an object using the Streamer facility.

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

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

Reimplemented from TObject.

Compare()

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

overridevirtualinherited

Compare two TNamed objects.

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

Reimplemented from TObject.

Reimplemented in TStructNodeProperty.

Definition at line 84 of file TNamed.cxx.

ComputeCdfTable()

Bool_t TF1::ComputeCdfTable ( Option_t * opt )

protected

Copy() [1/4]

void TAttFill::Copy ( TAttFill & attfill ) const

inherited

Copy() [2/4]

void TAttLine::Copy ( TAttLine & attline ) const

inherited

Copy() [3/4]

void TAttMarker::Copy ( TAttMarker & attmarker ) const

inherited

Copy() [4/4]

void TF1::Copy ( TObject & object ) const

overridevirtual

Copy this to obj.

Reimplemented from TObject.

Reimplemented in TF12, TF2, and TF3.

CreateHistogram()

virtual TH1 * TF1::CreateHistogram ( )

inlinevirtual

Reimplemented in TF2, and TF3.

Definition at line 414 of file TF1.h.

DeclFileName()

const char * TF1::DeclFileName ( )

inlinestatic

Returns

Name of the file containing the class declaration

Definition at line 694 of file TF1.h.

DefaultAddToGlobalList()

Bool_t TF1::DefaultAddToGlobalList ( Bool_t on = kTRUE )

static

DefineNSUMTerm()

void TF1::DefineNSUMTerm ( TObjArray * newFuncs, TObjArray * coeffNames, TString & fullFormula, TString & formula, int termStart, int termEnd, Double_t xmin, Double_t xmax )

private

Delete()

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

virtualinherited

Delete this object.

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

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

Definition at line 268 of file TObject.cxx.

Derivative()

virtual Double_t TF1::Derivative ( Double_t x, Double_t * params = nullptr, Double_t epsilon = 0.001 ) const

virtual

Derivative2()

virtual Double_t TF1::Derivative2 ( Double_t x, Double_t * params = nullptr, Double_t epsilon = 0.001 ) const

virtual

Derivative3()

virtual Double_t TF1::Derivative3 ( Double_t x, Double_t * params = nullptr, Double_t epsilon = 0.001 ) const

virtual

DerivativeError()

Double_t TF1::DerivativeError ( )

static

DistancetoLine()

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

inherited

DistancetoPrimitive()

Int_t TF1::DistancetoPrimitive ( Int_t px, Int_t py )

overridevirtual

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

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

Reimplemented from TObject.

Reimplemented in TF2, and TF3.

DoCreateHistogram()

virtual TH1 * TF1::DoCreateHistogram ( Double_t xmin, Double_t xmax, Bool_t recreate = kFALSE )

protectedvirtual

DoError()

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

protectedvirtualinherited

Interface to ErrorHandler (protected).

Reimplemented in TThread, and TTreeViewer.

Definition at line 1059 of file TObject.cxx.

DoInitialize()

void TF1::DoInitialize ( EAddToList addToGlobList )

protected

Draw()

void TF1::Draw ( Option_t * option = "" )

overridevirtual

Default Draw method for all objects.

Reimplemented from TObject.

Reimplemented in TF2, and TF3.

DrawClass()

void TObject::DrawClass ( ) const

virtualinherited

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

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

Reimplemented in TGFrame, TSystemDirectory, and TSystemFile.

Definition at line 308 of file TObject.cxx.

DrawClone()

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

virtualinherited

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

If pad was not selected - gPad will be used.

Note

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

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

Definition at line 319 of file TObject.cxx.

DrawCopy()

virtual TF1 * TF1::DrawCopy ( Option_t * option = "" ) const

virtual

Reimplemented in TF12, and TF2.

DrawDerivative()

virtual TObject * TF1::DrawDerivative ( Option_t * option = "al" )

virtual

Reimplemented in TF2, and TF3.

DrawF1()

virtual void TF1::DrawF1 ( Double_t xmin, Double_t xmax, Option_t * option = "" )

virtual

DrawIntegral()

virtual TObject * TF1::DrawIntegral ( Option_t * option = "al" )

virtual

Reimplemented in TF2, and TF3.

Dump()

void TObject::Dump ( ) const

virtualinherited

Dump contents of object on stdout.

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

The following output is the Dump of a TArrow object:

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

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

Definition at line 367 of file TObject.cxx.

Error()

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

virtualinherited

Issue error message.

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

Reimplemented in TFitResult.

Definition at line 1098 of file TObject.cxx.

Eval()

virtual Double_t TF1::Eval ( Double_t x, Double_t y = 0, Double_t z = 0, Double_t t = 0 ) const

virtual

Reimplemented in TF12.

EvalPar() [1/2]

virtual Double_t TF1::EvalPar ( const Double_t * x, const Double_t * params = nullptr )

virtual

Reimplemented in TF12.

EvalPar() [2/2]

template<class T>

T TF1::EvalPar	(	const T *	x,
		const Double_t *	params = nullptr )

EvalPar for vectorized.

Definition at line 776 of file TF1.h.

EvalParTempl()

template<class T>

T TF1::EvalParTempl ( const T * data, const Double_t * params = nullptr )

inlineprivate

Eval for vectorized functions.

Definition at line 801 of file TF1.h.

EvalParVec()

double TF1::EvalParVec ( const Double_t * data, const Double_t * params )

private

EvalUncertainty()

Double_t TF1::EvalUncertainty	(	Double_t	x,
		const TMatrixDSym *	covMatrix = nullptr ) const

Execute() [1/2]

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

virtualinherited

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

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

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

Definition at line 378 of file TObject.cxx.

Execute() [2/2]

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

virtualinherited

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

The TObjArray should contain an argv vector like:

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

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

Definition at line 398 of file TObject.cxx.

ExecuteEvent()

void TF1::ExecuteEvent ( Int_t event, Int_t px, Int_t py )

overridevirtual

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

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

Reimplemented from TObject.

Reimplemented in TF2, and TF3.

Fatal()

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

virtualinherited

Issue fatal error message.

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

Definition at line 1126 of file TObject.cxx.

FillBuffer()

void TNamed::FillBuffer ( char *& buffer )

virtualinherited

Encode TNamed into output buffer.

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

Definition at line 103 of file TNamed.cxx.

FindObject() [1/2]

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

virtualinherited

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 RooAbsCollection, RooLinkedList, TBtree, TCollection, TDirectory, TFolder, TGeometry, TGraph2D, TGraph, TH1, THashList, THashTable, THbookFile, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfTypes, TMap, TObjArray, TPad, TROOT, TViewPubDataMembers, and TViewPubFunctions.

Definition at line 425 of file TObject.cxx.

FindObject() [2/2]

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

virtualinherited

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 RooAbsCollection, RooLinkedList, TBtree, TCollection, TDirectory, TFolder, TGeometry, TGraph2D, TGraph, TH1, THashList, THashTable, THbookFile, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfTypes, TMap, TObjArray, TPad, TROOT, TViewPubDataMembers, and TViewPubFunctions.

Definition at line 435 of file TObject.cxx.

FixParameter()

virtual void TF1::FixParameter ( Int_t ipar, Double_t value )

virtual

GetChisquare()

Double_t TF1::GetChisquare ( ) const

inline

Return the Chisquare after fitting. See ROOT::Fit::FitResult::Chi2().

Definition at line 409 of file TF1.h.

GetCurrent()

TF1 * TF1::GetCurrent ( )

static

GetDrawOption()

Option_t * TObject::GetDrawOption ( ) const

virtualinherited

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

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

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

Definition at line 445 of file TObject.cxx.

GetDtorOnly()

Longptr_t TObject::GetDtorOnly ( )

staticinherited

Return destructor only flag.

Definition at line 1196 of file TObject.cxx.

GetExpFormula()

virtual TString TF1::GetExpFormula ( Option_t * option = "" ) const

inlinevirtual

Definition at line 426 of file TF1.h.

GetFillColor()

virtual Color_t TAttFill::GetFillColor ( ) const

inlinevirtualinherited

Return the fill area color.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 32 of file TAttFill.h.

GetFillStyle()

virtual Style_t TAttFill::GetFillStyle ( ) const

inlinevirtualinherited

Return the fill area style.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 33 of file TAttFill.h.

GetFormula() [1/2]

virtual TFormula * TF1::GetFormula ( )

inlinevirtual

Definition at line 418 of file TF1.h.

GetFormula() [2/2]

virtual const TFormula * TF1::GetFormula ( ) const

inlinevirtual

Definition at line 422 of file TF1.h.

GetHistogram()

virtual TH1 * TF1::GetHistogram ( ) const

virtual

GetIconName()

const char * TObject::GetIconName ( ) const

virtualinherited

Returns mime type name of object.

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

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

Definition at line 472 of file TObject.cxx.

GetLinearPart()

virtual const TObject * TF1::GetLinearPart ( Int_t i ) const

inlinevirtual

Definition at line 430 of file TF1.h.

GetLineColor()

virtual Color_t TAttLine::GetLineColor ( ) const

inlinevirtualinherited

Return the line color.

Reimplemented in TGraphMultiErrors, and TGWin32VirtualXProxy.

Definition at line 36 of file TAttLine.h.

GetLineStyle()

virtual Style_t TAttLine::GetLineStyle ( ) const

inlinevirtualinherited

Return the line style.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 37 of file TAttLine.h.

GetLineWidth()

virtual Width_t TAttLine::GetLineWidth ( ) const

inlinevirtualinherited

Return the line width.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 38 of file TAttLine.h.

GetMarkerColor()

virtual Color_t TAttMarker::GetMarkerColor ( ) const

inlinevirtualinherited

Return the marker color.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 33 of file TAttMarker.h.

GetMarkerLineWidth()

Width_t TAttMarker::GetMarkerLineWidth ( Style_t style )

staticinherited

GetMarkerSize()

virtual Size_t TAttMarker::GetMarkerSize ( ) const

inlinevirtualinherited

Return the marker size.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 35 of file TAttMarker.h.

GetMarkerStyle()

virtual Style_t TAttMarker::GetMarkerStyle ( ) const

inlinevirtualinherited

Return the marker style.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 34 of file TAttMarker.h.

GetMarkerStyleBase()

Style_t TAttMarker::GetMarkerStyleBase ( Style_t style )

staticinherited

GetMaximum()

virtual Double_t TF1::GetMaximum ( Double_t xmin = 0, Double_t xmax = 0, Double_t epsilon = 1.E-10, Int_t maxiter = 100, Bool_t logx = false ) const

virtual

Reimplemented in TF2.

GetMaximumStored()

virtual Double_t TF1::GetMaximumStored ( ) const

inlinevirtual

Definition at line 438 of file TF1.h.

GetMaximumX()

virtual Double_t TF1::GetMaximumX ( Double_t xmin = 0, Double_t xmax = 0, Double_t epsilon = 1.E-10, Int_t maxiter = 100, Bool_t logx = false ) const

virtual

GetMethodCall()

TMethodCall * TF1::GetMethodCall ( ) const

inline

Definition at line 459 of file TF1.h.

GetMinimum()

virtual Double_t TF1::GetMinimum ( Double_t xmin = 0, Double_t xmax = 0, Double_t epsilon = 1.E-10, Int_t maxiter = 100, Bool_t logx = false ) const

virtual

Reimplemented in TF2.

GetMinimumStored()

virtual Double_t TF1::GetMinimumStored ( ) const

inlinevirtual

Definition at line 442 of file TF1.h.

GetMinimumX()

virtual Double_t TF1::GetMinimumX ( Double_t xmin = 0, Double_t xmax = 0, Double_t epsilon = 1.E-10, Int_t maxiter = 100, Bool_t logx = false ) const

virtual

GetMinMaxNDim()

virtual Double_t TF1::GetMinMaxNDim ( Double_t * x, Bool_t findmax, Double_t epsilon = 0, Int_t maxiter = 0 ) const

protectedvirtual

GetName()

const char * TNamed::GetName ( ) const

inlineoverridevirtualinherited

Returns name of object.

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

Reimplemented from TObject.

Definition at line 49 of file TNamed.h.

GetNDF()

virtual Int_t TF1::GetNDF ( ) const

virtual

GetNdim()

virtual Int_t TF1::GetNdim ( ) const

inlinevirtual

Definition at line 450 of file TF1.h.

GetNpar()

virtual Int_t TF1::GetNpar ( ) const

inlinevirtual

Definition at line 446 of file TF1.h.

GetNpx()

virtual Int_t TF1::GetNpx ( ) const

inlinevirtual

Definition at line 455 of file TF1.h.

GetNumber()

virtual Int_t TF1::GetNumber ( ) const

inlinevirtual

Definition at line 463 of file TF1.h.

GetNumberFitPoints()

virtual Int_t TF1::GetNumberFitPoints ( ) const

inlinevirtual

Definition at line 468 of file TF1.h.

GetNumberFreeParameters()

virtual Int_t TF1::GetNumberFreeParameters ( ) const

virtual

GetObjectInfo()

char * TF1::GetObjectInfo ( Int_t px, Int_t py ) const

overridevirtual

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

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

Reimplemented from TObject.

Reimplemented in TF2.

GetObjectStat()

Bool_t TObject::GetObjectStat ( )

staticinherited

Get status of object stat flag.

Definition at line 1181 of file TObject.cxx.

GetOption()

virtual Option_t * TObject::GetOption ( ) const

inlinevirtualinherited

Reimplemented in TArrow, TAxis3D, TFile, TGaxis, TGeoVolume, TH1, THelix, TLegendEntry, TMapFile, TNode, TPave, TPoints3DABC, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPSocket, TSelector, TSocket, and TUDPSocket.

Definition at line 147 of file TObject.h.

GetParameter() [1/2]

virtual Double_t TF1::GetParameter ( const TString & name ) const

inlinevirtual

Definition at line 481 of file TF1.h.

GetParameter() [2/2]

virtual Double_t TF1::GetParameter ( Int_t ipar ) const

inlinevirtual

Definition at line 477 of file TF1.h.

GetParameters() [1/2]

virtual Double_t * TF1::GetParameters ( ) const

inlinevirtual

Definition at line 485 of file TF1.h.

GetParameters() [2/2]

virtual void TF1::GetParameters ( Double_t * params )

inlinevirtual

Definition at line 489 of file TF1.h.

GetParent()

TObject * TF1::GetParent ( ) const

inline

Definition at line 473 of file TF1.h.

GetParError() [1/2]

virtual Double_t TF1::GetParError ( const char * name ) const

inlinevirtual

Definition at line 503 of file TF1.h.

GetParError() [2/2]

virtual Double_t TF1::GetParError ( Int_t ipar ) const

virtual

GetParErrors()

virtual const Double_t * TF1::GetParErrors ( ) const

inlinevirtual

Definition at line 507 of file TF1.h.

GetParLimits()

virtual void TF1::GetParLimits ( Int_t ipar, Double_t & parmin, Double_t & parmax ) const

virtual

GetParName()

virtual const char * TF1::GetParName ( Int_t ipar ) const

inlinevirtual

Definition at line 494 of file TF1.h.

GetParNumber()

virtual Int_t TF1::GetParNumber ( const char * name ) const

inlinevirtual

Definition at line 498 of file TF1.h.

GetProb()

virtual Double_t TF1::GetProb ( ) const

virtual

GetQuantiles()

virtual Int_t TF1::GetQuantiles ( Int_t n, Double_t * xp, const Double_t * p )

virtual

GetRandom() [1/2]

virtual Double_t TF1::GetRandom ( Double_t xmin, Double_t xmax, TRandom * rng = nullptr, Option_t * opt = nullptr )

virtual

Reimplemented in TF2.

GetRandom() [2/2]

virtual Double_t TF1::GetRandom ( TRandom * rng = nullptr, Option_t * opt = nullptr )

virtual

Reimplemented in TF2.

GetRange() [1/4]

virtual void TF1::GetRange ( Double_t & xmin, Double_t & xmax ) const

virtual

Reimplemented in TF2, and TF3.

GetRange() [2/4]

virtual void TF1::GetRange ( Double_t & xmin, Double_t & ymin, Double_t & xmax, Double_t & ymax ) const

virtual

Reimplemented in TF2, and TF3.

GetRange() [3/4]

virtual void TF1::GetRange ( Double_t & xmin, Double_t & ymin, Double_t & zmin, Double_t & xmax, Double_t & ymax, Double_t & zmax ) const

virtual

Reimplemented in TF2, and TF3.

GetRange() [4/4]

virtual void TF1::GetRange ( Double_t * xmin, Double_t * xmax ) const

protectedvirtual

Reimplemented in TF2, and TF3.

GetSave()

virtual Double_t TF1::GetSave ( const Double_t * x )

virtual

Reimplemented in TF2, and TF3.

GetTitle()

const char * TNamed::GetTitle ( ) const

inlineoverridevirtualinherited

Returns title of object.

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

Reimplemented from TObject.

Definition at line 50 of file TNamed.h.

GetUniqueID()

UInt_t TObject::GetUniqueID ( ) const

virtualinherited

Return the unique object id.

Definition at line 480 of file TObject.cxx.

GetVariable()

virtual Double_t TF1::GetVariable ( const TString & name )

inlinevirtual

Definition at line 532 of file TF1.h.

GetX()

virtual Double_t TF1::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

virtual

GetXaxis()

TAxis * TF1::GetXaxis

(

)

const

GetXmax()

virtual Double_t TF1::GetXmax ( ) const

inlinevirtual

Definition at line 525 of file TF1.h.

GetXmin()

virtual Double_t TF1::GetXmin ( ) const

inlinevirtual

Definition at line 521 of file TF1.h.

GetYaxis()

TAxis * TF1::GetYaxis

(

)

const

GetZaxis()

TAxis * TF1::GetZaxis

(

)

const

GradientPar() [1/4]

virtual void TF1::GradientPar ( const Double_t * x, Double_t * grad, Double_t eps = 0.01 ) const

virtual

GradientPar() [2/4]

template<class T>

void TF1::GradientPar ( const T * x, T * grad, Double_t eps = 0.01 ) const

inline

Definition at line 905 of file TF1.h.

GradientPar() [3/4]

virtual Double_t TF1::GradientPar ( Int_t ipar, const Double_t * x, Double_t eps = 0.01 ) const

virtual

GradientPar() [4/4]

template<class T>

T TF1::GradientPar ( Int_t ipar, const T * x, Double_t eps = 0.01 ) const

inline

Definition at line 838 of file TF1.h.

GradientParTempl() [1/2]

template<class T>

void TF1::GradientParTempl ( const T * x, T * grad, Double_t eps = 0.01 ) const

inline

Definition at line 914 of file TF1.h.

GradientParTempl() [2/2]

template<class T>

T TF1::GradientParTempl ( Int_t ipar, const T * x, Double_t eps = 0.01 ) const

inline

Definition at line 847 of file TF1.h.

HandleTimer()

Bool_t TObject::HandleTimer ( TTimer * timer )

virtualinherited

Execute action in response of a timer timing out.

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

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

Definition at line 516 of file TObject.cxx.

Hash()

ULong_t TNamed::Hash ( ) const

inlineoverridevirtualinherited

Return hash value for this object.

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

ROOT::CallRecursiveRemoveIfNeeded(*this)

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

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

Reimplemented from TObject.

Definition at line 51 of file TNamed.h.

HasInconsistentHash()

Bool_t TObject::HasInconsistentHash ( ) const

inlineinherited

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

missing call to RecursiveRemove in destructor).

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

Definition at line 366 of file TObject.h.

HasSave()

Bool_t TF1::HasSave ( ) const

inline

Return true if function has data in fSave buffer.

Definition at line 403 of file TF1.h.

Info()

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

virtualinherited

Issue info message.

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

Definition at line 1072 of file TObject.cxx.

InheritsFrom() [1/2]

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

virtualinherited

Returns kTRUE if object inherits from class "classname".

Reimplemented in TClass.

Definition at line 549 of file TObject.cxx.

InheritsFrom() [2/2]

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

virtualinherited

Returns kTRUE if object inherits from TClass cl.

Reimplemented in TClass.

Definition at line 557 of file TObject.cxx.

InitArgs()

virtual void TF1::InitArgs ( const Double_t * x, const Double_t * params )

virtual

InitStandardFunctions()

void TF1::InitStandardFunctions ( )

static

Inspect()

void TObject::Inspect ( ) const

virtualinherited

Dump contents of this object in a graphics canvas.

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

The following picture is the Inspect of a histogram object:

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

Definition at line 570 of file TObject.cxx.

Integral()

virtual Double_t TF1::Integral ( Double_t a, Double_t b, Double_t epsrel = 1.e-12 )

virtual

Reimplemented in TF2, and TF3.

IntegralError() [1/2]

virtual Double_t TF1::IntegralError ( Double_t a, Double_t b, const Double_t * params = nullptr, const Double_t * covmat = nullptr, Double_t epsilon = 1.E-2 )

virtual

IntegralError() [2/2]

virtual Double_t TF1::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 )

virtual

IntegralFast()

virtual Double_t TF1::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 )

virtual

IntegralMultiple() [1/3]

virtual Double_t TF1::IntegralMultiple ( Int_t n, const Double_t * a, const Double_t * b, Double_t epsrel, Double_t & relerr )

virtual

IntegralMultiple() [2/3]

virtual Double_t TF1::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 )

virtual

IntegralMultiple() [3/3]

virtual Double_t TF1::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 )

inlinevirtual

Definition at line 557 of file TF1.h.

IntegralOneDim()

virtual Double_t TF1::IntegralOneDim ( Double_t a, Double_t b, Double_t epsrel, Double_t epsabs, Double_t & err )

virtual

IntegrateForNormalization()

void TF1::IntegrateForNormalization ( )

protected

InvertBit()

void TObject::InvertBit ( UInt_t f )

inlineinherited

Definition at line 206 of file TObject.h.

IsA()

TClass * TF1::IsA ( ) const

inlineoverridevirtual

Returns

TClass describing current object

Reimplemented from TObject.

Reimplemented in TF12, TF2, and TF3.

Definition at line 694 of file TF1.h.

IsDestructed()

Bool_t TObject::IsDestructed ( ) const

inlineinherited

IsDestructed.

Note

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

Returns

true if this object's destructor has been run.

Definition at line 186 of file TObject.h.

IsEqual()

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

virtualinherited

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

More complicated classes might want to override this function.

Reimplemented in TGObject, TObjString, TPair, and TQCommand.

Definition at line 589 of file TObject.cxx.

IsEvalNormalized()

virtual Bool_t TF1::IsEvalNormalized ( ) const

inlinevirtual

Definition at line 562 of file TF1.h.

IsFolder()

Bool_t TObject::IsFolder ( ) const

virtualinherited

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

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

Definition at line 579 of file TObject.cxx.

IsInside()

virtual Bool_t TF1::IsInside ( const Double_t * x ) const

inlinevirtual

return kTRUE if the point is inside the function range

Reimplemented in TF2, and TF3.

Definition at line 567 of file TF1.h.

IsLinear()

virtual Bool_t TF1::IsLinear ( ) const

inlinevirtual

Definition at line 571 of file TF1.h.

IsOnHeap()

Bool_t TObject::IsOnHeap ( ) const

inlineinherited

Definition at line 160 of file TObject.h.

IsSortable()

Bool_t TNamed::IsSortable ( ) const

inlineoverridevirtualinherited

Reimplemented from TObject.

Reimplemented in TStructNodeProperty.

Definition at line 52 of file TNamed.h.

IsTransparent()

Bool_t TAttFill::IsTransparent ( ) const

inlinevirtualinherited

Reimplemented in TGWin32VirtualXProxy.

Definition at line 49 of file TAttFill.h.

IsValid()

virtual Bool_t TF1::IsValid ( ) const

virtual

IsVectorized()

bool TF1::IsVectorized ( )

inline

Definition at line 404 of file TF1.h.

IsZombie()

Bool_t TObject::IsZombie ( ) const

inlineinherited

Definition at line 161 of file TObject.h.

ls()

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

overridevirtualinherited

List TNamed name and title.

Reimplemented from TObject.

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

Definition at line 112 of file TNamed.cxx.

MakeZombie()

void TObject::MakeZombie ( )

inlineprotectedinherited

Definition at line 55 of file TObject.h.

MayNotUse()

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

inherited

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

Definition at line 1160 of file TObject.cxx.

Mean()

virtual Double_t TF1::Mean ( Double_t a, Double_t b, const Double_t * params = nullptr, Double_t epsilon = 0.000001 )

inlinevirtual

Definition at line 674 of file TF1.h.

Modify() [1/3]

virtual void TAttFill::Modify ( )

virtualinherited

Modify() [2/3]

virtual void TAttLine::Modify ( )

virtualinherited

Modify() [3/3]

virtual void TAttMarker::Modify ( )

virtualinherited

ModifyOn() [1/3]

virtual void TAttFill::ModifyOn ( TVirtualPad & pad )

virtualinherited

ModifyOn() [2/3]

virtual void TAttLine::ModifyOn ( TVirtualPad & pad )

virtualinherited

ModifyOn() [3/3]

virtual void TAttMarker::ModifyOn ( TVirtualPad & pad )

virtualinherited

Moment()

virtual Double_t TF1::Moment ( Double_t n, Double_t a, Double_t b, const Double_t * params = nullptr, Double_t epsilon = 0.000001 )

virtual

Notify()

Bool_t TObject::Notify ( )

virtualinherited

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

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

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

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

Definition at line 618 of file TObject.cxx.

Obsolete()

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

inherited

Use this method to declare a method obsolete.

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

Definition at line 1169 of file TObject.cxx.

operator delete() [1/3]

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

inherited

Operator delete for sized deallocation.

Definition at line 1234 of file TObject.cxx.

operator delete() [2/3]

void TObject::operator delete ( void * ptr )

inherited

Operator delete.

Definition at line 1212 of file TObject.cxx.

operator delete() [3/3]

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

inherited

Only called by placement new when throwing an exception.

Definition at line 1266 of file TObject.cxx.

operator delete[]() [1/3]

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

inherited

Operator delete [] for sized deallocation.

Definition at line 1245 of file TObject.cxx.

operator delete[]() [2/3]

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

inherited

Operator delete [].

Definition at line 1223 of file TObject.cxx.

operator delete[]() [3/3]

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

inherited

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

Definition at line 1274 of file TObject.cxx.

operator new() [1/2]

void * TObject::operator new ( size_t sz )

inlineinherited

Definition at line 189 of file TObject.h.

operator new() [2/2]

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

inlineinherited

Definition at line 191 of file TObject.h.

operator new[]() [1/2]

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

inlineinherited

Definition at line 190 of file TObject.h.

operator new[]() [2/2]

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

inlineinherited

Definition at line 192 of file TObject.h.

operator()() [1/2]

template<class T>

T TF1::operator() ( const T * x, const Double_t * params = nullptr )

inline

Definition at line 768 of file TF1.h.

operator()() [2/2]

Double_t TF1::operator() ( Double_t x, Double_t y = 0, Double_t z = 0, Double_t t = 0 ) const

inlinevirtual

Definition at line 762 of file TF1.h.

operator=()

TF1 & TF1::operator=

(

const TF1 &

rhs

)

Paint()

void TF1::Paint ( Option_t * option = "" )

overridevirtual

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

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

Reimplemented from TObject.

Reimplemented in TF2, and TF3.

Pop()

void TObject::Pop ( )

virtualinherited

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

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

Reimplemented in TFrame, TPad, and TVirtualPad.

Definition at line 640 of file TObject.cxx.

Print()

void TF1::Print ( Option_t * option = "" ) const

overridevirtual

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

Reimplemented from TObject.

ProvideSaveName()

TString TF1::ProvideSaveName ( Option_t * option )

protected

Read()

Int_t TObject::Read ( const char * name )

virtualinherited

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

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

Reimplemented in TBuffer, TKey, TKeySQL, and TKeyXML.

Definition at line 673 of file TObject.cxx.

RecursiveRemove()

void TObject::RecursiveRemove ( TObject * obj )

virtualinherited

Recursively remove this object from a list.

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

Reimplemented in RooAbsCollection, RooAbsData, RooLinkedList, RooMCStudy, ROOT::Internal::TCheckHashRecursiveRemoveConsistency, ROOT::RBrowserDataCleanup, RooWorkspace, TBrowser, TChain, TCling, TCollection, TDialogCanvas, TDirectory, TEfficiency, TFileMerger, TFitEditor, TFolder, TFriendElement, TGedEditor, TGeometry, TGFileBrowser, TGraph2D, TGraph, TH1, TH1Editor, TH2Editor, THashList, THistPainter, THStack, TInspectCanvas, TLegend, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TMultiGraph, TNode, TObjArray, TObjectRefSpy, TObjectSpy, TPad, TProcessID, TROOT, TRootBrowser, TRootBrowserHistory, TRootBrowserLite, TRootContextMenu, TTree, TTreePlayer, TViewPubDataMembers, TViewPubFunctions, and TVirtualPad.

Definition at line 684 of file TObject.cxx.

RejectedPoint()

Bool_t TF1::RejectedPoint ( )

static

RejectPoint()

void TF1::RejectPoint ( Bool_t reject = kTRUE )

static

ReleaseParameter()

virtual void TF1::ReleaseParameter ( Int_t ipar )

virtual

ResetAttFill()

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

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

ResetAttLine()

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

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

ResetAttMarker()

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

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

ResetBit()

void TObject::ResetBit ( UInt_t f )

inlineinherited

Definition at line 203 of file TObject.h.

Save()

virtual void TF1::Save ( Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax )

virtual

Reimplemented in TF2, and TF3.

SaveAs()

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

virtualinherited

Save this object in the file specified by filename.

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

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

  The function is available via the object context menu.

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TClassTree, TFolder, TGeoVolume, TGObject, TGraph, TH1, TPad, TPaveClass, TSpline3, TSpline5, TSpline, TTreePerfStats, and TVirtualPad.

Definition at line 708 of file TObject.cxx.

SaveFillAttributes()

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

virtualinherited

SaveLineAttributes()

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

virtualinherited

SaveMarkerAttributes()

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

virtualinherited

SavePrimitive()

void TF1::SavePrimitive ( std::ostream & out, Option_t * option = "" )

overridevirtual

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

Reimplemented from TObject.

Reimplemented in TF12, TF2, and TF3.

SavePrimitiveConstructor()

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

staticprotectedinherited

Save object constructor in the output stream "out".

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

Definition at line 777 of file TObject.cxx.

SavePrimitiveDraw()

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

staticprotectedinherited

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

Definition at line 845 of file TObject.cxx.

SavePrimitiveNameTitle()

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

protectedinherited

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

Definition at line 135 of file TNamed.cxx.

SavePrimitiveVector()

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

staticprotectedinherited

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

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

Definition at line 796 of file TObject.cxx.

SetBit() [1/2]

void TObject::SetBit ( UInt_t f )

inlineinherited

Definition at line 202 of file TObject.h.

SetBit() [2/2]

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

inherited

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

Definition at line 888 of file TObject.cxx.

SetChisquare()

virtual void TF1::SetChisquare ( Double_t chi2 )

inlinevirtual

Definition at line 581 of file TF1.h.

SetCurrent()

void TF1::SetCurrent ( TF1 * f1 )

static

SetDrawOption()

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

virtualinherited

Set drawing option for object.

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

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

Definition at line 871 of file TObject.cxx.

SetDtorOnly()

void TObject::SetDtorOnly ( void * obj )

staticinherited

Set destructor only flag.

Definition at line 1204 of file TObject.cxx.

SetFillAttributes()

virtual void TAttFill::SetFillAttributes ( )

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

SetFillColor() [1/2]

virtual void TAttFill::SetFillColor ( Color_t fcolor )

inlinevirtualinherited

Set the fill area color.

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

Definition at line 40 of file TAttFill.h.

SetFillColor() [2/2]

void TAttFill::SetFillColor ( TColorNumber )

inherited

SetFillColorAlpha()

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

virtualinherited

Reimplemented in TGraphMultiErrors.

SetFillStyle()

virtual void TAttFill::SetFillStyle ( Style_t fstyle )

inlinevirtualinherited

Set the fill area style.

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

Definition at line 42 of file TAttFill.h.

SetFitResult()

virtual void TF1::SetFitResult ( const ROOT::Fit::FitResult & result, const Int_t * indpar = nullptr )

virtual

SetFunction() [1/2]

template<typename Func>

void TF1::SetFunction

(

Func

f

)

Definition at line 823 of file TF1.h.

SetFunction() [2/2]

template<class PtrObj, typename MemFn>

void TF1::SetFunction	(	PtrObj &	p,
		MemFn	memFn )

Definition at line 830 of file TF1.h.

SetLineAttributes()

virtual void TAttLine::SetLineAttributes ( )

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

SetLineColor() [1/2]

virtual void TAttLine::SetLineColor ( Color_t lcolor )

inlinevirtualinherited

Set the line color.

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

Definition at line 44 of file TAttLine.h.

SetLineColor() [2/2]

void TAttLine::SetLineColor ( TColorNumber lcolor )

inherited

SetLineColorAlpha()

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

virtualinherited

Reimplemented in TGraphMultiErrors.

SetLineStyle()

virtual void TAttLine::SetLineStyle ( Style_t lstyle )

inlinevirtualinherited

Set the line style.

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

Definition at line 46 of file TAttLine.h.

SetLineWidth()

virtual void TAttLine::SetLineWidth ( Width_t lwidth )

inlinevirtualinherited

Set the line width.

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

Definition at line 47 of file TAttLine.h.

SetMarkerAttributes()

virtual void TAttMarker::SetMarkerAttributes ( )

virtualinherited

Reimplemented in TGWin32VirtualXProxy.

SetMarkerColor() [1/2]

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

inlinevirtualinherited

Set the marker color.

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

Definition at line 41 of file TAttMarker.h.

SetMarkerColor() [2/2]

void TAttMarker::SetMarkerColor ( TColorNumber lcolor )

inherited

SetMarkerColorAlpha()

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

virtualinherited

SetMarkerSize()

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

inlinevirtualinherited

Set the marker size.

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

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

Definition at line 48 of file TAttMarker.h.

SetMarkerStyle()

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

inlinevirtualinherited

Set the marker style.

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

Definition at line 43 of file TAttMarker.h.

SetMaximum()

virtual void TF1::SetMaximum ( Double_t maximum = -1111 )

virtual

SetMinimum()

virtual void TF1::SetMinimum ( Double_t minimum = -1111 )

virtual

SetName()

void TNamed::SetName ( const char * name )

virtualinherited

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 RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, ROOT::Experimental::XRooFit::xRooNode, TChain, TColor, TDirectory, TEfficiency, TEventList, TEveScene, TFormula, TGraph2D, TGraph, TH1, TNode, TRotMatrix, TShape, TSystemDirectory, TSystemFile, and TTree.

Definition at line 149 of file TNamed.cxx.

SetNameTitle()

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

virtualinherited

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 RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, TContextMenu, TGraph2D, TGraph, TH1, and TNode.

Definition at line 163 of file TNamed.cxx.

SetNDF()

virtual void TF1::SetNDF ( Int_t ndf )

virtual

SetNdim()

void TF1::SetNdim ( Int_t ndim )

inline

Definition at line 602 of file TF1.h.

SetNormalized()

virtual void TF1::SetNormalized ( Bool_t flag )

inlinevirtual

Definition at line 597 of file TF1.h.

SetNpx()

virtual void TF1::SetNpx ( Int_t npx = 100 )

virtual

SetNumberFitPoints()

virtual void TF1::SetNumberFitPoints ( Int_t npfits )

inlinevirtual

Definition at line 593 of file TF1.h.

SetObjectStat()

void TObject::SetObjectStat ( Bool_t stat )

staticinherited

Turn on/off tracking of objects in the TObjectTable.

Definition at line 1188 of file TObject.cxx.

SetParameter() [1/2]

virtual void TF1::SetParameter ( const TString & name, Double_t value )

inlinevirtual

Definition at line 613 of file TF1.h.

SetParameter() [2/2]

virtual void TF1::SetParameter ( Int_t param, Double_t value )

inlinevirtual

Definition at line 608 of file TF1.h.

SetParameters() [1/2]

virtual void TF1::SetParameters ( const Double_t * params )

inlinevirtual

Definition at line 618 of file TF1.h.

SetParameters() [2/2]

virtual void TF1::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() )

inlinevirtual

Set parameter values.

NaN values will be skipped, meaning that the corresponding parameters will not be changed.

Definition at line 625 of file TF1.h.

SetParent()

virtual void TF1::SetParent ( TObject * p = nullptr )

inlinevirtual

Definition at line 647 of file TF1.h.

SetParError()

virtual void TF1::SetParError ( Int_t ipar, Double_t error )

virtual

SetParErrors()

virtual void TF1::SetParErrors ( const Double_t * errors )

virtual

SetParLimits()

virtual void TF1::SetParLimits ( Int_t ipar, Double_t parmin, Double_t parmax )

virtual

SetParName()

virtual void TF1::SetParName ( Int_t ipar, const char * name )

virtual

SetParNames()

virtual void TF1::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 = "" )

virtual

SetRange() [1/3]

virtual void TF1::SetRange ( Double_t xmin, Double_t xmax )

virtual

Reimplemented in TF2, and TF3.

SetRange() [2/3]

void TF1::SetRange ( Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax )

inlinevirtual

Reimplemented in TF2, and TF3.

Definition at line 813 of file TF1.h.

SetRange() [3/3]

void TF1::SetRange ( Double_t xmin, Double_t ymin, Double_t zmin, Double_t xmax, Double_t ymax, Double_t zmax )

inlinevirtual

Reimplemented in TF2, and TF3.

Definition at line 817 of file TF1.h.

SetSavedPoint()

virtual void TF1::SetSavedPoint ( Int_t point, Double_t value )

virtual

Reimplemented in TF2.

SetTitle()

void TF1::SetTitle ( const char * title = "" )

overridevirtual

Set the title of the TNamed.

Reimplemented from TNamed.

SetUniqueID()

void TObject::SetUniqueID ( UInt_t uid )

virtualinherited

Set the unique object id.

Definition at line 899 of file TObject.cxx.

SetVectorized()

virtual void TF1::SetVectorized ( Bool_t vectorized )

inlinevirtual

Definition at line 656 of file TF1.h.

Sizeof()

Int_t TNamed::Sizeof ( ) const

virtualinherited

Return size of the TNamed part of the TObject.

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

Definition at line 182 of file TNamed.cxx.

Streamer()

void TF1::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

Reimplemented in TF12, TF2, and TF3.

StreamerNVirtual()

void TF1::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 694 of file TF1.h.

SysError()

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

virtualinherited

Issue system error message.

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

Definition at line 1112 of file TObject.cxx.

TermCoeffLength()

int TF1::TermCoeffLength ( TString & term )

private

TestBit()

Bool_t TObject::TestBit ( UInt_t f ) const

inlineinherited

Definition at line 204 of file TObject.h.

TestBits()

Int_t TObject::TestBits ( UInt_t f ) const

inlineinherited

Definition at line 205 of file TObject.h.

Update()

virtual void TF1::Update ( )

virtual

UseCurrentStyle()

void TObject::UseCurrentStyle ( )

virtualinherited

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

Reimplemented in TAxis3D, TCanvas, TFrame, TGraph, TH1, TPad, TPaveStats, TPaveText, and TTree.

Definition at line 909 of file TObject.cxx.

Variance()

virtual Double_t TF1::Variance ( Double_t a, Double_t b, const Double_t * params = nullptr, Double_t epsilon = 0.000001 )

inlinevirtual

Definition at line 678 of file TF1.h.

Warning()

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

virtualinherited

Issue warning message.

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

Definition at line 1084 of file TObject.cxx.

Write() [1/2]

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

virtualinherited

Write this object to the current directory.

For more see the const version of this method.

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

Definition at line 989 of file TObject.cxx.

Write() [2/2]

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

virtualinherited

Write this object to the current directory.

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

Writing an object to a file involves the following steps:

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

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

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

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

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

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

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

Definition at line 964 of file TObject.cxx.

Friends And Related Symbol Documentation

ROOT::Internal::TF1Builder

template<class Func>

friend struct ROOT::Internal::TF1Builder

friend

Definition at line 185 of file TF1.h.

Member Data Documentation

fAlpha

std::vector<Double_t> TF1::fAlpha

protected

! Array alpha. for each bin in x the deconvolution r of fIntegral

Definition at line 228 of file TF1.h.

fBeta

std::vector<Double_t> TF1::fBeta

protected

! Array beta. is approximated by x = alpha +beta*r *gamma*r**2

Definition at line 229 of file TF1.h.

fBits

UInt_t TObject::fBits

privateinherited

bit field status word

Definition at line 47 of file TObject.h.

fChisquare

Double_t TF1::fChisquare {}

protected

Function fit chisquare.

Definition at line 220 of file TF1.h.

fComposition

std::unique_ptr<TF1AbsComposition> TF1::fComposition

protected

Pointer to composition (NSUM or CONV).

Definition at line 239 of file TF1.h.

fFillColor

Color_t TAttFill::fFillColor

protectedinherited

Fill area color.

Definition at line 24 of file TAttFill.h.

fFillStyle

Style_t TAttFill::fFillStyle

protectedinherited

Fill area style.

Definition at line 25 of file TAttFill.h.

fFormula

std::unique_ptr<TFormula> TF1::fFormula

protected

Pointer to TFormula in case when user define formula.

Definition at line 237 of file TF1.h.

fFunctor

std::unique_ptr<TF1FunctorPointer> TF1::fFunctor

protected

! Functor object to wrap any C++ callable object

Definition at line 236 of file TF1.h.

fgAbsValue

std::atomic< Bool_t > TF1::fgAbsValue

staticprotected

Definition at line 273 of file TF1.h.

fgAddToGlobList

std::atomic< Bool_t > TF1::fgAddToGlobList

staticprotected

Definition at line 275 of file TF1.h.

fGamma

std::vector<Double_t> TF1::fGamma

protected

! Array gamma.

Definition at line 230 of file TF1.h.

fgCurrent

TF1* TF1::fgCurrent

staticprotected

Definition at line 276 of file TF1.h.

fgDtorOnly

Longptr_t TObject::fgDtorOnly = 0

staticprivateinherited

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

Definition at line 49 of file TObject.h.

fgObjectStat

Bool_t TObject::fgObjectStat = kTRUE

staticprivateinherited

if true keep track of objects in TObjectTable

Definition at line 50 of file TObject.h.

fgRejectPoint

Bool_t TF1::fgRejectPoint = kFALSE

staticprotected

Definition at line 274 of file TF1.h.

fHistogram

TH1* TF1::fHistogram {nullptr}

protected

! Pointer to histogram used for visualisation

Definition at line 232 of file TF1.h.

fIntegral

std::vector<Double_t> TF1::fIntegral

protected

! Integral of function binned on fNpx bins

Definition at line 227 of file TF1.h.

fLineColor

Color_t TAttLine::fLineColor

protectedinherited

Line color.

Definition at line 24 of file TAttLine.h.

fLineStyle

Style_t TAttLine::fLineStyle

protectedinherited

Line style.

Definition at line 25 of file TAttLine.h.

fLineWidth

Width_t TAttLine::fLineWidth

protectedinherited

Line width.

Definition at line 26 of file TAttLine.h.

fMarkerColor

Color_t TAttMarker::fMarkerColor

protectedinherited

Marker color.

Definition at line 24 of file TAttMarker.h.

fMarkerSize

Size_t TAttMarker::fMarkerSize

protectedinherited

Marker size.

Definition at line 26 of file TAttMarker.h.

fMarkerStyle

Style_t TAttMarker::fMarkerStyle

protectedinherited

Marker style.

Definition at line 25 of file TAttMarker.h.

fMaximum

Double_t TF1::fMaximum {-1111}

protected

Maximum value for plotting.

Definition at line 222 of file TF1.h.

fMethodCall

std::unique_ptr<TMethodCall> TF1::fMethodCall

protected

! Pointer to MethodCall in case of interpreted function

Definition at line 233 of file TF1.h.

fMinimum

Double_t TF1::fMinimum {-1111}

protected

Minimum value for plotting.

Definition at line 221 of file TF1.h.

fName

TString TNamed::fName

protectedinherited

Definition at line 32 of file TNamed.h.

fNDF

Int_t TF1::fNDF {}

protected

Number of degrees of freedom in the fit.

Definition at line 219 of file TF1.h.

fNdim

Int_t TF1::fNdim {}

protected

Function dimension.

Definition at line 215 of file TF1.h.

fNormalized

Bool_t TF1::fNormalized {false}

protected

Normalization option (false by default).

Definition at line 234 of file TF1.h.

fNormIntegral

Double_t TF1::fNormIntegral {}

protected

Integral of the function before being normalized.

Definition at line 235 of file TF1.h.

fNpar

Int_t TF1::fNpar {}

protected

Number of parameters.

Definition at line 214 of file TF1.h.

fNpfits

Int_t TF1::fNpfits {}

protected

Number of points used in the fit.

Definition at line 218 of file TF1.h.

fNpx

Int_t TF1::fNpx {100}

protected

Number of points used for the graphical representation.

Definition at line 216 of file TF1.h.

fParams

std::unique_ptr<TF1Parameters> TF1::fParams

protected

Pointer to Function parameters object (exists only for not-formula functions).

Definition at line 238 of file TF1.h.

fParent

TObject* TF1::fParent {nullptr}

protected

! Parent object hooking this function (if one)

Definition at line 231 of file TF1.h.

fParErrors

std::vector<Double_t> TF1::fParErrors

protected

Array of errors of the fNpar parameters.

Definition at line 223 of file TF1.h.

fParMax

std::vector<Double_t> TF1::fParMax

protected

Array of upper limits of the fNpar parameters.

Definition at line 225 of file TF1.h.

fParMin

std::vector<Double_t> TF1::fParMin

protected

Array of lower limits of the fNpar parameters.

Definition at line 224 of file TF1.h.

fSave

std::vector<Double_t> TF1::fSave

protected

Array of fNsave function values.

Definition at line 226 of file TF1.h.

fTitle

TString TNamed::fTitle

protectedinherited

Definition at line 33 of file TNamed.h.

fType

EFType TF1::fType {EFType::kTemplScalar}

protected

Definition at line 217 of file TF1.h.

fUniqueID

UInt_t TObject::fUniqueID

privateinherited

object unique identifier

Definition at line 46 of file TObject.h.

fXmax

Double_t TF1::fXmax {-1111}

protected

Upper bounds for the range.

Definition at line 213 of file TF1.h.

fXmin

Double_t TF1::fXmin {-1111}

protected

Lower bounds for the range.

Definition at line 212 of file TF1.h.

---

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

• hist/hist/inc/TF1.h
• hist/hist/src/TF1.cxx