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Reference Guide
TF12 Class Reference

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 25 of file TF12.h.

Public Member Functions

 TF12 ()
 TF12 default constructor. More...
 
 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 TF1DrawCopy (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, Double_t xmax, Option_t *option)
 Same constructor as above (for TFormula based function) but passing an option strings available options VEC - vectorize the formula expressions (not possible for lambda based expressions) NL - function is not stores in the global list of functions GL - function will be always stored in the global list of functions , independently of the global setting of TF1::DefaultAddToGlobalList. More...
 
 TF1 (const char *name, const char *formula, Double_t xmin=0, Double_t xmax=1, EAddToList addToGlobList=EAddToList::kDefault, bool vectorize=false)
 F1 constructor using a formula definition. More...
 
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 *, EAddToList addToGlobList=EAddToList::kDefault)
 
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)
 
 TF1 (const char *name, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim=1, EAddToList addToGlobList=EAddToList::kDefault)
 F1 constructor using name of an interpreted 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, EAddToList addToGlobList=EAddToList::kDefault)
 Constructor using a pointer to real 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, EAddToList addToGlobList=EAddToList::kDefault)
 Constructor using a pointer to a real function. More...
 
template<typename Func >
 TF1 (const char *name, Func f, Double_t xmin, Double_t xmax, Int_t npar, const char *, 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)
 
 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)
 Constructor using the Functor class. More...
 
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. More...
 
 TF1 (const TF1 &f1)
 
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 if the function was already in the list false if not) More...
 
virtual void Browse (TBrowser *b)
 Browse. 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...
 
TObjectClone (const char *newname=0) const
 Make a complete copy of the underlying object. More...
 
virtual TH1CreateHistogram ()
 
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. 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. 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. 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 TObjectDrawDerivative (Option_t *option="al")
 Draw derivative of this function. More...
 
virtual void DrawF1 (Double_t xmin, Double_t xmax, Option_t *option="")
 Draw function between xmin and xmax. More...
 
virtual TObjectDrawIntegral (Option_t *option="al")
 Draw integral of this function. More...
 
template<class T >
EvalPar (const T *x, const Double_t *params=0)
 EvalPar for vectorized. More...
 
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 TString GetExpFormula (Option_t *option="") const
 
virtual TFormulaGetFormula ()
 
virtual const TFormulaGetFormula () const
 
virtual TH1GetHistogram () const
 Return a pointer to the histogram used to visualise the function. More...
 
virtual const TObjectGetLinearPart (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 GetMaximumStored () const
 
virtual Double_t GetMaximumX (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const
 Returns the X value corresponding to the maximum value of the function. More...
 
TMethodCallGetMethodCall () const
 
virtual Double_t GetMinimum (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const
 Returns the minimum value of the function on the (xmin, xmax) interval. More...
 
virtual Double_t GetMinimumStored () const
 
virtual Double_t GetMinimumX (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const
 Returns the X value corresponding to the minimum value of the function on the (xmin, xmax) interval. More...
 
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 GetNdim () const
 
virtual Int_t GetNpar () const
 
virtual Int_t GetNpx () const
 
virtual Int_t GetNumber () const
 
virtual Int_t GetNumberFitPoints () const
 
virtual Int_t GetNumberFreeParameters () const
 Return the number of free parameters. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Redefines TObject::GetObjectInfo. More...
 
virtual Double_t GetParameter (const TString &name) const
 
virtual Double_t GetParameter (Int_t ipar) const
 
virtual Double_tGetParameters () const
 
virtual void GetParameters (Double_t *params)
 
TObjectGetParent () const
 
virtual Double_t GetParError (Int_t ipar) const
 Return value of parameter number ipar. More...
 
virtual const Double_tGetParErrors () const
 
virtual void GetParLimits (Int_t ipar, Double_t &parmin, Double_t &parmax) const
 Return limits for parameter ipar. More...
 
virtual const char * GetParName (Int_t ipar) const
 
virtual Int_t GetParNumber (const char *name) const
 
virtual Double_t GetProb () const
 Return the fit probability. 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 GetVariable (const TString &name)
 
virtual Double_t GetX (Double_t y, Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const
 Returns the X value corresponding to the function value fy for (xmin<x<xmax). More...
 
TAxisGetXaxis () const
 Get x axis of the function. More...
 
virtual Double_t GetXmax () const
 
virtual Double_t GetXmin () const
 
TAxisGetYaxis () const
 Get y axis of the function. More...
 
TAxisGetZaxis () const
 Get z axis of the function. (In case this object is a TF2 or TF3) More...
 
virtual void GradientPar (const Double_t *x, Double_t *grad, Double_t eps=0.01)
 Compute the gradient wrt parameters. More...
 
template<class T >
void GradientPar (const T *x, T *grad, Double_t eps=0.01)
 
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...
 
template<class T >
GradientPar (Int_t ipar, const T *x, Double_t eps=0.01)
 
template<class T >
void GradientParTempl (const T *x, T *grad, Double_t eps=0.01)
 
template<class T >
GradientParTempl (Int_t ipar, const T *x, Double_t eps=0.01)
 
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 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 parametric function between a and b due to the parameter uncertainties and their covariance matrix from the fit. 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 parametric function with dimension larger than 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, Double_t epsrel, Double_t &relerr)
 See more general prototype below. 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 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 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...
 
bool IsVectorized ()
 
virtual Double_t Mean (Double_t a, Double_t b, const Double_t *params=0, Double_t epsilon=0.000001)
 
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...
 
template<class 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
 
TF1operator= (const TF1 &rhs)
 Operator =. More...
 
virtual void Paint (Option_t *option="")
 Paint this function with its current attributes. More...
 
virtual void Print (Option_t *option="") const
 Print TNamed name and title. 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<typename Func >
void SetFunction (Func f)
 
template<class PtrObj , typename MemFn >
void SetFunction (PtrObj &p, MemFn memFn)
 
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 SetNormalized (Bool_t flag)
 
virtual void SetNpx (Int_t npx=100)
 Set the number of points used to draw the function. More...
 
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_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 SetParent (TObject *p=0)
 
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 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 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 SetVectorized (Bool_t vectorized)
 
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 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 TNamed &named)
 TNamed copy ctor. More...
 
 TNamed (const TString &name, const TString &title)
 
virtual ~TNamed ()
 TNamed destructor. More...
 
virtual void Clear (Option_t *option="")
 Set name and title to empty strings (""). 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 ls (Option_t *option="") const
 List TNamed name and title. More...
 
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator. More...
 
virtual void SetName (const char *name)
 Set the name of the TNamed. More...
 
virtual void SetNameTitle (const char *name, const char *title)
 Set all the TNamed parameters (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 constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. 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...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
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. 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 TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. 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 void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual Option_tGetOption () const
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
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. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. 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...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. 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...
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
void SetBit (UInt_t f)
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. 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 SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
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 void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. 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...
 
- 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 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 SetLineColorAlpha (Color_t lcolor, Float_t lalpha)
 Set a transparent line color. More...
 
- Public Member Functions inherited from TAttFill
 TAttFill ()
 AttFill default constructor. More...
 
 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 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 SetFillColorAlpha (Color_t fcolor, Float_t falpha)
 Set a transparent fill color. More...
 
- Public Member Functions inherited from TAttMarker
 TAttMarker ()
 TAttMarker default constructor. More...
 
 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 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 SetMarkerColorAlpha (Color_t mcolor, Float_t malpha)
 Set a transparent marker color. More...
 

Protected Attributes

Int_t fCase
 
TF2fF2
 
Double_t fXY
 
- Protected Attributes inherited from TF1
std::vector< Double_tfAlpha
 Integral of function binned on fNpx bins. More...
 
std::vector< Double_tfBeta
 Array alpha. for each bin in x the deconvolution r of fIntegral. More...
 
Double_t fChisquare {}
 
std::unique_ptr< TF1AbsCompositionfComposition
 
TF1AbsCompositionfComposition_ptr {nullptr}
 Pointer to composition (NSUM or CONV) More...
 
TFormulafFormula {nullptr}
 Functor object to wrap any C++ callable object. More...
 
TF1FunctorPointerfFunctor {nullptr}
 
std::vector< Double_tfGamma
 Array beta. is approximated by x = alpha +beta*r *gamma*r**2. More...
 
TH1fHistogram {nullptr}
 Parent object hooking this function (if one) More...
 
std::vector< Double_tfIntegral
 
Double_t fMaximum {-1111}
 
TMethodCallfMethodCall {nullptr}
 Pointer to histogram used for visualisation. More...
 
Double_t fMinimum {-1111}
 
Int_t fNDF {}
 
Int_t fNdim {}
 
Bool_t fNormalized {false}
 Pointer to MethodCall in case of interpreted function. More...
 
Double_t fNormIntegral {}
 
Int_t fNpar {}
 
Int_t fNpfits {}
 
Int_t fNpx {100}
 
TF1ParametersfParams {nullptr}
 
TObjectfParent {nullptr}
 Array gamma. More...
 
std::vector< Double_tfParErrors
 
std::vector< Double_tfParMax
 
std::vector< Double_tfParMin
 
std::vector< Double_tfSave
 
EFType fType {EFType::kTemplScalar}
 
Double_t fXmax {-1111}
 
Double_t fXmin {-1111}
 
- Protected Attributes inherited from TNamed
TString fName
 
TString fTitle
 
- Protected Attributes inherited from TAttLine
Color_t fLineColor
 Line color. More...
 
Style_t fLineStyle
 Line style. More...
 
Width_t fLineWidth
 Line width. More...
 
- Protected Attributes inherited from TAttFill
Color_t fFillColor
 Fill area color. More...
 
Style_t fFillStyle
 Fill area style. More...
 
- Protected Attributes inherited from TAttMarker
Color_t fMarkerColor
 Marker color. More...
 
Size_t fMarkerSize
 Marker size. More...
 
Style_t fMarkerStyle
 Marker style. More...
 

Additional Inherited Members

- Public Types inherited from TF1
enum  EAddToList { EAddToList::kDefault, EAddToList::kAdd, EAddToList::kNo }
 
enum  EStatusBits { kNotGlobal = BIT(10), kNotDraw = BIT(9) }
 
- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from TF1
static void AbsValue (Bool_t reject=kTRUE)
 Static function: set the fgAbsValue flag. 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 Bool_t DefaultAddToGlobalList (Bool_t on=kTRUE)
 Static method to add/avoid to add automatically functions to the global list (gROOT->GetListOfFunctions() ) After having called this static method, all the functions created afterwards will follow the desired behaviour. More...
 
static Double_t DerivativeError ()
 Static function returning the error of the last call to the of Derivative's functions. More...
 
static TF1GetCurrent ()
 Static function returning the current function being processed. More...
 
static void InitStandardFunctions ()
 Create the basic function objects. More...
 
static Bool_t RejectedPoint ()
 See TF1::RejectPoint above. 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 void SetCurrent (TF1 *f1)
 Static function setting the current function. More...
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- Static Public Member Functions inherited from TAttMarker
static Width_t GetMarkerLineWidth (Style_t style)
 Internal helper function that returns the line width of the given marker style (0 = filled marker) More...
 
static Style_t GetMarkerStyleBase (Style_t style)
 Internal helper function that returns the corresponding marker style with line width 1 for the given style. More...
 
- Protected Types inherited from TF1
enum  EFType {
  kFormula = 0, kPtrScalarFreeFcn, kInterpreted, kTemplVec,
  kTemplScalar, kCompositionFcn
}
 
- Protected Member Functions inherited from 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)
 General constructor for TF1. Most of the other constructors delegate on it. More...
 
virtual TH1DoCreateHistogram (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...
 
void DoInitialize (EAddToList addToGlobList)
 Common initialization of the TF1. More...
 
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...
 
void IntegrateForNormalization ()
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
void MakeZombie ()
 
- Static Protected Attributes inherited from TF1
static std::atomic< Bool_tfgAbsValue
 
static std::atomic< Bool_tfgAddToGlobList
 
static TF1fgCurrent = 0
 
static Bool_t fgRejectPoint = kFALSE
 

#include <TF12.h>

Inheritance diagram for TF12:
[legend]

Constructor & Destructor Documentation

◆ TF12() [1/3]

TF12::TF12 ( )

TF12 default constructor.

Definition at line 37 of file TF12.cxx.

◆ TF12() [2/3]

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 52 of file TF12.cxx.

◆ TF12() [3/3]

TF12::TF12 ( const TF12 f12)

Copy constructor.

Definition at line 87 of file TF12.cxx.

◆ ~TF12()

TF12::~TF12 ( )
virtual

F2 default destructor.

Definition at line 79 of file TF12.cxx.

Member Function Documentation

◆ Copy()

void TF12::Copy ( TObject f12) const
virtual

Copy this F2 to a new F2.

Reimplemented from TF1.

Definition at line 96 of file TF12.cxx.

◆ 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 122 of file TF12.cxx.

◆ Eval()

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 137 of file TF12.cxx.

◆ EvalPar()

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 155 of file TF12.cxx.

◆ GetXY()

virtual Double_t TF12::GetXY ( ) const
inlinevirtual

Definition at line 53 of file TF12.h.

◆ SavePrimitive()

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 174 of file TF12.cxx.

◆ SetXY()

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 188 of file TF12.cxx.

Member Data Documentation

◆ fCase

Int_t TF12::fCase
protected

Definition at line 35 of file TF12.h.

◆ fF2

TF2* TF12::fF2
protected

Definition at line 36 of file TF12.h.

◆ fXY

Double_t TF12::fXY
protected

Definition at line 34 of file TF12.h.

Libraries for TF12:
[legend]

The documentation for this class was generated from the following files:
TF12::TF12
TF12()
TF12 default constructor.
Definition: TF12.cxx:37
TF12
Definition: TF12.h:25
TF2
Definition: TF2.h:29
TF1::Draw
virtual void Draw(Option_t *option="")
Draw this function with its current attributes.
Definition: TF1.cxx:1338