A projection of a TF2 along X or Y.

It has the same behaviour as a TF1

Example of a function TF2 *f2 = new TF2("f2","sin(x)*sin(y)/(x*y)",0,5,0,5); TF12 *f12 = new TF12("f12",f2,0.1,"y"); f12->Draw();

Definition at line 30 of file TF12.h.

Public Member Functions
	TF12 ()

	TF12 (const char name, TF2 f2, Double_t xy, Option_t *option="x")
	TF12 normal constructor. More...

	TF12 (const TF12 &f12)
	Copy constructor. More...

virtual	~TF12 ()
	F2 default destructor. More...

virtual void	Copy (TObject &f12) const
	Copy this F2 to a new F2. More...

virtual TF1 *	DrawCopy (Option_t *option="") const
	Draw a copy of this function with its current attributes. More...

virtual Double_t	Eval (Double_t x, Double_t y=0, Double_t z=0, Double_t t=0) const
	Evaluate this formula. More...

virtual Double_t	EvalPar (const Double_t x, const Double_t params=0)
	Evaluate this function at point x[0]. More...

virtual Double_t	GetXY () const

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save primitive as a C++ statement(s) on output stream out. More...

virtual void	SetXY (Double_t xy)
	Set the value of the constant for the TF2. More...

Public Member Functions inherited from TF1
	TF1 ()
	TF1 default constructor. More...

	TF1 (const char name, const char formula, Double_t xmin=0, Double_t xmax=1)
	F1 constructor using a formula definition. More...

	TF1 (const char *name, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim=1)
	F1 constructor using name of an interpreted function. More...

	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)
	Constructor using a pointer to a real function. More...

	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)
	Constructor using a pointer to real function. More...

	TF1 (const char *name, ROOT::Math::ParamFunctor f, Double_t xmin=0, Double_t xmax=1, Int_t npar=0, Int_t ndim=1)
	Constructor using the Functor class. More...

template<typename Func >
	TF1 (const char *name, Func f, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim=1)
	ctor implementation More...

template<typename Func >
	TF1 (const char name, Func f, Double_t xmin, Double_t xmax, Int_t npar, const char )

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)

template<class PtrObj , typename MemFn >
	TF1 (const char name, const PtrObj &p, MemFn memFn, Double_t xmin, Double_t xmax, Int_t npar, const char , const char *)

	TF1 (const TF1 &f1)

TF1 &	operator= (const TF1 &rhs)
	Operator =. More...

virtual	~TF1 ()
	TF1 default destructor. More...

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

virtual Bool_t	AddToGlobalList (Bool_t on=kTRUE)
	Add to global list of functions (gROOT->GetListOfFunctions() ) return previous status (true of functions was already in the list false if not) More...

virtual void	Browse (TBrowser *b)
	Browse. More...

virtual Double_t	Derivative (Double_t x, Double_t *params=0, Double_t epsilon=0.001) const
	Returns the first derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas \[ D(h) = \frac{f(x+h) - f(x-h)}{2h} \] the final estimate \[ D = \frac{4D(h/2) - D(h)}{3} \] "Numerical Methods for Scientists and Engineers", H.M.Antia, 2nd edition". More...

virtual Double_t	Derivative2 (Double_t x, Double_t *params=0, Double_t epsilon=0.001) const
	Returns the second derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas \[ D(h) = \frac{f(x+h) - 2f(x) + f(x-h)}{h^{2}} \] the final estimate \[ D = \frac{4D(h/2) - D(h)}{3} \] "Numerical Methods for Scientists and Engineers", H.M.Antia, 2nd edition". More...

virtual Double_t	Derivative3 (Double_t x, Double_t *params=0, Double_t epsilon=0.001) const
	Returns the third derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas \[ D(h) = \frac{f(x+2h) - 2f(x+h) + 2f(x-h) - f(x-2h)}{2h^{3}} \] the final estimate \[ D = \frac{4D(h/2) - D(h)}{3} \] "Numerical Methods for Scientists and Engineers", H.M.Antia, 2nd edition". More...

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Compute distance from point px,py to a function. More...

virtual void	Draw (Option_t *option="")
	Draw this function with its current attributes. More...

virtual TObject *	DrawDerivative (Option_t *option="al")
	Draw derivative of this function. More...

virtual TObject *	DrawIntegral (Option_t *option="al")
	Draw integral of this function. More...

virtual void	DrawF1 (Double_t xmin, Double_t xmax, Option_t *option="")
	Draw function between xmin and xmax. More...

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

virtual Double_t	operator() (const Double_t x, const Double_t params=0)

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to one event. More...

virtual void	FixParameter (Int_t ipar, Double_t value)
	Fix the value of a parameter The specified value will be used in a fit operation. More...

Double_t	GetChisquare () const

virtual TH1 *	GetHistogram () const
	Return a pointer to the histogram used to vusualize the function. More...

virtual TH1 *	CreateHistogram ()

virtual TFormula *	GetFormula ()

virtual const TFormula *	GetFormula () const

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

virtual const TObject *	GetLinearPart (Int_t i) const

virtual Double_t	GetMaximum (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const
	Returns the maximum value of the function. More...

virtual Double_t	GetMinimum (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const
	Returns the minimum value of the function on the (xmin, xmax) interval. More...

virtual Double_t	GetMaximumX (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const
	Returns the X value corresponding to the maximum value of the function. More...

virtual Double_t	GetMinimumX (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const
	Returns the X value corresponding to the minimum value of the function on the (xmin, xmax) interval. More...

virtual Double_t	GetMaximumStored () const

virtual Double_t	GetMinimumStored () const

virtual Int_t	GetNpar () const

virtual Int_t	GetNdim () const

virtual Int_t	GetNDF () const
	Return the number of degrees of freedom in the fit the fNDF parameter has been previously computed during a fit. More...

virtual Int_t	GetNpx () const

TMethodCall *	GetMethodCall () const

virtual Int_t	GetNumber () const

virtual Int_t	GetNumberFreeParameters () const
	Return the number of free parameters. More...

virtual Int_t	GetNumberFitPoints () const

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Redefines TObject::GetObjectInfo. More...

TObject *	GetParent () const

virtual Double_t	GetParameter (Int_t ipar) const

virtual Double_t	GetParameter (const TString &name) const

virtual Double_t *	GetParameters () const

virtual void	GetParameters (Double_t *params)

virtual const char *	GetParName (Int_t ipar) const

virtual Int_t	GetParNumber (const char *name) const

virtual Double_t	GetParError (Int_t ipar) const
	Return value of parameter number ipar. More...

virtual const Double_t *	GetParErrors () const

virtual void	GetParLimits (Int_t ipar, Double_t &parmin, Double_t &parmax) const
	Return limits for parameter ipar. More...

virtual Double_t	GetProb () const
	Return the fit probability. More...

virtual Int_t	GetQuantiles (Int_t nprobSum, Double_t q, const Double_t probSum)
	Compute Quantiles for density distribution of this function. More...

virtual Double_t	GetRandom ()
	Return a random number following this function shape. More...

virtual Double_t	GetRandom (Double_t xmin, Double_t xmax)
	Return a random number following this function shape in [xmin,xmax]. More...

virtual void	GetRange (Double_t &xmin, Double_t &xmax) const
	Return range of a 1-D function. More...

virtual void	GetRange (Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) const
	Return range of a 2-D function. More...

virtual void	GetRange (Double_t &xmin, Double_t &ymin, Double_t &zmin, Double_t &xmax, Double_t &ymax, Double_t &zmax) const
	Return range of function. More...

virtual Double_t	GetSave (const Double_t *x)
	Get value corresponding to X in array of fSave values. More...

virtual Double_t	GetX (Double_t y, Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const
	Returns the X value corresponding to the function value fy for (xmin<x<xmax). More...

virtual Double_t	GetXmin () const

virtual Double_t	GetXmax () const

TAxis *	GetXaxis () const
	Get x axis of the function. More...

TAxis *	GetYaxis () const
	Get y axis of the function. More...

TAxis *	GetZaxis () const
	Get z axis of the function. (In case this object is a TF2 or TF3) More...

virtual Double_t	GetVariable (const TString &name)

virtual Double_t	GradientPar (Int_t ipar, const Double_t *x, Double_t eps=0.01)
	Compute the gradient (derivative) wrt a parameter ipar. More...

virtual void	GradientPar (const Double_t x, Double_t grad, Double_t eps=0.01)
	Compute the gradient wrt parameters. More...

virtual void	InitArgs (const Double_t x, const Double_t params)
	Initialize parameters addresses. More...

virtual Double_t	Integral (Double_t a, Double_t b, Double_t epsrel=1.e-12)
	IntegralOneDim or analytical integral. More...

virtual Double_t	IntegralOneDim (Double_t a, Double_t b, Double_t epsrel, Double_t epsabs, Double_t &err)
	Return Integral of function between a and b using the given parameter values and relative and absolute tolerance. More...

virtual Double_t	IntegralError (Double_t a, Double_t b, const Double_t params=0, const Double_t covmat=0, Double_t epsilon=1.E-2)
	Return Error on Integral of a parameteric function between a and b due to the parameter uncertainties. More...

virtual Double_t	IntegralError (Int_t n, const Double_t a, const Double_t b, const Double_t params=0, const Double_t covmat=0, Double_t epsilon=1.E-2)
	Return Error on Integral of a parameteric function with dimension larger tan one between a[] and b[] due to the parameters uncertainties. More...

virtual Double_t	IntegralFast (Int_t num, Double_t x, Double_t w, Double_t a, Double_t b, Double_t *params=0, Double_t epsilon=1e-12)
	Gauss-Legendre integral, see CalcGaussLegendreSamplingPoints. More...

virtual Double_t	IntegralMultiple (Int_t n, const Double_t a, const Double_t b, Int_t maxpts, Double_t epsrel, Double_t epsabs, Double_t &relerr, Int_t &nfnevl, Int_t &ifail)
	This function computes, to an attempted specified accuracy, the value of the integral. More...

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	IntegralMultiple (Int_t n, const Double_t a, const Double_t b, Double_t epsrel, Double_t &relerr)
	See more general prototype below. More...

virtual Bool_t	IsEvalNormalized () const

virtual Bool_t	IsInside (const Double_t *x) const
	return kTRUE if the point is inside the function range More...

virtual Bool_t	IsLinear () const

virtual Bool_t	IsValid () const
	Return kTRUE if the function is valid. More...

virtual void	Print (Option_t *option="") const
	Print TNamed name and title. More...

virtual void	Paint (Option_t *option="")
	Paint this function with its current attributes. More...

virtual void	ReleaseParameter (Int_t ipar)
	Release parameter number ipar If used in a fit, the parameter can vary freely. More...

virtual void	Save (Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax)
	Save values of function in array fSave. More...

virtual void	SetChisquare (Double_t chi2)

virtual void	SetFitResult (const ROOT::Fit::FitResult &result, const Int_t *indpar=0)
	Set the result from the fit parameter values, errors, chi2, etc... More...

template<class PtrObj , typename MemFn >
void	SetFunction (PtrObj &p, MemFn memFn)

template<typename Func >
void	SetFunction (Func f)

virtual void	SetMaximum (Double_t maximum=-1111)
	Set the maximum value along Y for this function In case the function is already drawn, set also the maximum in the helper histogram. More...

virtual void	SetMinimum (Double_t minimum=-1111)
	Set the minimum value along Y for this function In case the function is already drawn, set also the minimum in the helper histogram. More...

virtual void	SetNDF (Int_t ndf)
	Set the number of degrees of freedom ndf should be the number of points used in a fit - the number of free parameters. More...

virtual void	SetNumberFitPoints (Int_t npfits)

virtual void	SetNormalized (Bool_t flag)

virtual void	SetNpx (Int_t npx=100)
	Set the number of points used to draw the function. More...

virtual void	SetParameter (Int_t param, Double_t value)

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

virtual void	SetParameters (const Double_t *params)

virtual void	SetParameters (Double_t p0, Double_t p1, Double_t p2=0, Double_t p3=0, Double_t p4=0, Double_t p5=0, Double_t p6=0, Double_t p7=0, Double_t p8=0, Double_t p9=0, Double_t p10=0)

virtual void	SetParName (Int_t ipar, const char *name)
	Set name of parameter number ipar. More...

virtual void	SetParNames (const char name0="p0", const char name1="p1", const char name2="p2", const char name3="p3", const char name4="p4", const char name5="p5", const char name6="p6", const char name7="p7", const char name8="p8", const char name9="p9", const char *name10="p10")
	Set up to 10 parameter names. More...

virtual void	SetParError (Int_t ipar, Double_t error)
	Set error for parameter number ipar. More...

virtual void	SetParErrors (const Double_t *errors)
	Set errors for all active parameters when calling this function, the array errors must have at least fNpar values. More...

virtual void	SetParLimits (Int_t ipar, Double_t parmin, Double_t parmax)
	Set limits for parameter ipar. More...

virtual void	SetParent (TObject *p=0)

virtual void	SetRange (Double_t xmin, Double_t xmax)
	Initialize the upper and lower bounds to draw the function. More...

virtual void	SetRange (Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax)

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

virtual void	SetSavedPoint (Int_t point, Double_t value)
	Restore value of function saved at point. More...

virtual void	SetTitle (const char *title="")
	Set function title if title has the form "fffffff;xxxx;yyyy", it is assumed that the function title is "fffffff" and "xxxx" and "yyyy" are the titles for the X and Y axis respectively. More...

virtual void	Update ()
	Called by functions such as SetRange, SetNpx, SetParameters to force the deletion of the associated histogram or Integral. More...

virtual Double_t	Moment (Double_t n, Double_t a, Double_t b, const Double_t *params=0, Double_t epsilon=0.000001)
	Return nth moment of function between a and b. More...

virtual Double_t	CentralMoment (Double_t n, Double_t a, Double_t b, const Double_t *params=0, Double_t epsilon=0.000001)
	Return nth central moment of function between a and b (i.e the n-th moment around the mean value) More...

virtual Double_t	Mean (Double_t a, Double_t b, const Double_t *params=0, Double_t epsilon=0.000001)

virtual Double_t	Variance (Double_t a, Double_t b, const Double_t *params=0, Double_t epsilon=0.000001)

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TString &name, const TString &title)

	TNamed (const TNamed &named)

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator. More...

virtual	~TNamed ()

virtual void	Clear (Option_t *option="")
	Set name and title to empty strings (""). More...

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...

virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects. More...

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer. More...

virtual const char *	GetName () const
	Returns name of object. More...

virtual const char *	GetTitle () const
	Returns title of object. More...

virtual ULong_t	Hash () const
	Return hash value for this object. More...

virtual Bool_t	IsSortable () const

virtual void	SetName (const char *name)
	Change (i.e. More...

virtual void	SetNameTitle (const char name, const char title)
	Change (i.e. set) all the TNamed parameters (name and title). More...

virtual void	ls (Option_t *option="") const
	List TNamed name and title. More...

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject. More...

Public Member Functions inherited from TObject
	TObject ()

	TObject (const TObject &object)
	TObject copy ctor. More...

TObject &	operator= (const TObject &rhs)
	TObject assignment operator. More...

virtual	~TObject ()
	TObject destructor. More...

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad. More...

virtual const char *	ClassName () const
	Returns name of class to which the object belongs. More...

virtual void	Delete (Option_t *option="")
	Delete this object. More...

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs. More...

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current pad. More...

virtual void	Dump () const
	Dump contents of object on stdout. More...

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes. More...

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes. More...

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object. More...

virtual UInt_t	GetUniqueID () const
	Return the unique object id. More...

virtual const char *	GetIconName () const
	Returns mime type name of object. More...

virtual Option_t *	GetOption () const

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out. More...

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname". More...

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl. More...

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas. More...

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory). More...

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification. More...

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list. More...

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory. More...

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list. More...

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename. More...

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object. More...

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id. More...

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

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory. More...

void *	operator new (size_t sz)

void *	operator new[] (size_t sz)

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

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

void	operator delete (void *ptr)
	Operator delete. More...

void	operator delete[] (void *ptr)
	Operator delete []. More...

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f. More...

void	SetBit (UInt_t f)

void	ResetBit (UInt_t f)

Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

void	InvertBit (UInt_t f)

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message. More...

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message. More...

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message. More...

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message. More...

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message. More...

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...

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). More...

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete. More...

Public Member Functions inherited from TAttLine
	TAttLine ()
	AttLine default constructor. More...

	TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth)
	AttLine normal constructor. More...

virtual	~TAttLine ()
	AttLine destructor. More...

void	Copy (TAttLine &attline) const
	Copy this line attributes to a new TAttLine. More...

Int_t	DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)
	Compute distance from point px,py to a line. More...

virtual Color_t	GetLineColor () const

virtual Style_t	GetLineStyle () const

virtual Width_t	GetLineWidth () const

virtual void	Modify ()
	Change current line attributes if necessary. More...

virtual void	ResetAttLine (Option_t *option="")
	Reset this line attributes to default values. More...

virtual void	SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)
	Save line attributes as C++ statement(s) on output stream out. More...

virtual void	SetLineAttributes ()
	Invoke the DialogCanvas Line attributes. More...

virtual void	SetLineColor (Color_t lcolor)

virtual void	SetLineColorAlpha (Color_t lcolor, Float_t lalpha)
	Set a transparent line color. More...

virtual void	SetLineStyle (Style_t lstyle)

virtual void	SetLineWidth (Width_t lwidth)

	ClassDef (TAttLine, 2)

Public Member Functions inherited from TAttFill
	TAttFill ()

	TAttFill (Color_t fcolor, Style_t fstyle)
	AttFill normal constructor. More...

virtual	~TAttFill ()
	AttFill destructor. More...

void	Copy (TAttFill &attfill) const
	Copy this fill attributes to a new TAttFill. More...

virtual Color_t	GetFillColor () const

virtual Style_t	GetFillStyle () const

virtual Bool_t	IsTransparent () const

virtual void	Modify ()
	Change current fill area attributes if necessary. More...

virtual void	ResetAttFill (Option_t *option="")
	Reset this fill attributes to default values. More...

virtual void	SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001)
	Save fill attributes as C++ statement(s) on output stream out. More...

virtual void	SetFillAttributes ()
	Invoke the DialogCanvas Fill attributes. More...

virtual void	SetFillColor (Color_t fcolor)

virtual void	SetFillColorAlpha (Color_t fcolor, Float_t falpha)
	Set a transparent fill color. More...

virtual void	SetFillStyle (Style_t fstyle)

Public Member Functions inherited from TAttMarker
	TAttMarker ()

	TAttMarker (Color_t color, Style_t style, Size_t msize)
	TAttMarker normal constructor. More...

virtual	~TAttMarker ()
	TAttMarker destructor. More...

void	Copy (TAttMarker &attmarker) const
	Copy this marker attributes to a new TAttMarker. More...

virtual Color_t	GetMarkerColor () const

virtual Style_t	GetMarkerStyle () const

virtual Size_t	GetMarkerSize () const

virtual void	Modify ()
	Change current marker attributes if necessary. More...

virtual void	ResetAttMarker (Option_t *toption="")
	Reset this marker attributes to the default values. More...

virtual void	SaveMarkerAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t sizdef=1)
	Save line attributes as C++ statement(s) on output stream out. More...

virtual void	SetMarkerAttributes ()
	Invoke the DialogCanvas Marker attributes. More...

virtual void	SetMarkerColor (Color_t mcolor=1)

virtual void	SetMarkerColorAlpha (Color_t mcolor, Float_t malpha)
	Set a transparent marker color. More...

virtual void	SetMarkerStyle (Style_t mstyle=1)

virtual void	SetMarkerSize (Size_t msize=1)

	ClassDef (TAttMarker, 2)

Protected Attributes
Double_t	fXY

Int_t	fCase

TF2 *	fF2

Protected Attributes inherited from TF1
Double_t	fXmin

Double_t	fXmax

Int_t	fNpar

Int_t	fNdim

Int_t	fNpx

Int_t	fType

Int_t	fNpfits

Int_t	fNDF

Double_t	fChisquare

Double_t	fMinimum

Double_t	fMaximum

std::vector< Double_t >	fParErrors

std::vector< Double_t >	fParMin

std::vector< Double_t >	fParMax

std::vector< Double_t >	fSave

std::vector< Double_t >	fIntegral

std::vector< Double_t >	fAlpha
	Integral of function binned on fNpx bins. More...

std::vector< Double_t >	fBeta
	Array alpha. for each bin in x the deconvolution r of fIntegral. More...

std::vector< Double_t >	fGamma
	Array beta. is approximated by x = alpha +betar gammar*2. More...

TObject *	fParent
	Array gamma. More...

TH1 *	fHistogram
	Parent object hooking this function (if one) More...

TMethodCall *	fMethodCall
	Pointer to histogram used for visualisation. More...

Bool_t	fNormalized
	Pointer to MethodCall in case of interpreted function. More...

Double_t	fNormIntegral

ROOT::Math::ParamFunctor	fFunctor

TFormula *	fFormula
	Functor object to wrap any C++ callable object. More...

TF1Parameters *	fParams

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Protected Attributes inherited from TAttLine
Color_t	fLineColor

Style_t	fLineStyle

Width_t	fLineWidth

Protected Attributes inherited from TAttFill
Color_t	fFillColor

Style_t	fFillStyle

Protected Attributes inherited from TAttMarker
Color_t	fMarkerColor

Style_t	fMarkerStyle

Size_t	fMarkerSize

Additional Inherited Members
Public Types inherited from TF1
enum	{ kNotDraw = BIT(9) }

Public Types inherited from TObject
enum	EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) }

enum	{ kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }

Static Public Member Functions inherited from TF1
static Double_t	DerivativeError ()
	Static function returning the error of the last call to the of Derivative's functions. More...

static void	InitStandardFunctions ()
	Create the basic function objects. More...

static TF1 *	GetCurrent ()
	Static function returning the current function being processed. More...

static void	AbsValue (Bool_t reject=kTRUE)
	Static function: set the fgAbsValue flag. More...

static void	RejectPoint (Bool_t reject=kTRUE)
	Static function to set the global flag to reject points the fgRejectPoint global flag is tested by all fit functions if TRUE the point is not included in the fit. More...

static Bool_t	RejectedPoint ()
	See TF1::RejectPoint above. More...

static void	SetCurrent (TF1 *f1)
	Static function setting the current function. More...

static void	CalcGaussLegendreSamplingPoints (Int_t num, Double_t x, Double_t w, Double_t eps=3.0e-11)
	Type safe interface (static method) The number of sampling points are taken from the TGraph. More...

Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...

static void	SetDtorOnly (void *obj)
	Set destructor only flag. More...

static Bool_t	GetObjectStat ()
	Get status of object stat flag. More...

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable. More...

Protected Types inherited from TF1
enum	{ kNotGlobal = BIT(10) }

Protected Member Functions inherited from TF1
void	DoInitialize ()
	Common initialization of the TF1. More...

void	IntegrateForNormalization ()

virtual Double_t	GetMinMaxNDim (Double_t *x, Bool_t findmax, Double_t epsilon=0, Int_t maxiter=0) const
	Find the minimum of a function of whatever dimension. More...

virtual void	GetRange (Double_t xmin, Double_t xmax) const
	Return range of a generic N-D function. More...

virtual TH1 *	DoCreateHistogram (Double_t xmin, Double_t xmax, Bool_t recreate=kFALSE)
	Create histogram with bin content equal to function value computed at the bin center This histogram will be used to paint the function A re-creation is forced and a new histogram is done if recreate=true. More...

Protected Member Functions inherited from TObject
void	MakeZombie ()

virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

Static Protected Attributes inherited from TF1
static Bool_t	fgAbsValue = kFALSE

static Bool_t	fgRejectPoint = kFALSE

static Bool_t	fgAddToGlobList = kTRUE

static TF1 *	fgCurrent = 0

#include <TF12.h>

Inheritance diagram for TF12:

[legend]

Constructor & Destructor Documentation

TF12::TF12 ( )

Referenced by DrawCopy().

TF12::TF12	(	const char *	name,
		TF2 *	f2,
		Double_t	xy,
		Option_t *	option = `"x"`
	)

TF12 normal constructor.

Create a TF12 (special TF1) from a projection of a TF2 for a fix value of Y if option="X" or X if option="Y" This value may be changed at any time via TF12::SetXY(xy)

Definition at line 48 of file TF12.cxx.

TF12::TF12 ( const TF12 & f12 )

Copy constructor.

Definition at line 83 of file TF12.cxx.

TF12::~TF12 ( )

virtual

F2 default destructor.

Definition at line 75 of file TF12.cxx.

Member Function Documentation

void TF12::Copy ( TObject & f12 ) const

virtual

Copy this F2 to a new F2.

Reimplemented from TF1.

Definition at line 92 of file TF12.cxx.

Referenced by DrawCopy().

TF1 * TF12::DrawCopy ( Option_t * option = "" ) const

virtual

Draw a copy of this function with its current attributes.

This function MUST be used instead of Draw when you want to draw the same function with different parameters settings in the same canvas.

Possible option values are:

option	description
"SAME"	superimpose on top of existing picture
"L"	connect all computed points with a straight line
"C"	connect all computed points with a smooth curve

Note that the default value is "F". Therefore to draw on top of an existing picture, specify option "SL"

Reimplemented from TF1.

Definition at line 118 of file TF12.cxx.

Double_t TF12::Eval	(	Double_t	x,
		Double_t	y = `0`,
		Double_t	z = `0`,
		Double_t	t = `0`
	)		const

virtual

Evaluate this formula.

Computes the value of the referenced TF2 for a fix value of X or Y

Reimplemented from TF1.

Definition at line 133 of file TF12.cxx.

Double_t TF12::EvalPar	(	const Double_t *	x,
		const Double_t *	params = `0`
	)

virtual

Evaluate this function at point x[0].

x[0] is the value along X if fCase =0, the value along Y if fCase=1 if params is non null, the array will be used instead of the internal TF2 parameters

Reimplemented from TF1.

Definition at line 151 of file TF12.cxx.

virtual Double_t TF12::GetXY ( ) const

inlinevirtual

Definition at line 46 of file TF12.h.

void TF12::SavePrimitive	(	std::ostream &	out,
		Option_t *	option = `""`
	)

virtual

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

Reimplemented from TF1.

Definition at line 170 of file TF12.cxx.

void TF12::SetXY ( Double_t xy )

virtual

Set the value of the constant for the TF2.

constant in X when projecting along Y constant in Y when projecting along X The function title is set to include the value of the constant The current pad is updated

Definition at line 184 of file TF12.cxx.

Referenced by TF12().