#include <RFitBase2D.hh>

Inheritance diagram for RFitBase2D:

Public Member Functions
	RFitBase2D ()

	RFitBase2D (TH2 hptr, TH2 herr=NULL)

	RFitBase2D (TH2 *hptr, const RFitData2D &fit_data)

	RFitBase2D (TH2 hptr, TH2 herr, const RFitData2D &fit_data)

	RFitBase2D (const RFitBase2D &original)

virtual	~RFitBase2D ()

virtual void	SetAngles3D (const Double_t theta, const Double_t phi)

virtual void	Reset ()

virtual void	InitMode ()

virtual void	SetOptions (const UInt_t opts)

virtual void	SetOption (const UInt_t opt, const bool b=true)

virtual void	SetFitMode (const Int_t mode)

virtual void	SetFitLimits (const Double_t x1, const Double_t x2, const Double_t y1, const Double_t y2)

virtual void	SetParValue (const Int_t p, const Double_t val)

virtual string	GetParName (const Int_t p) const

virtual void	FixParameter (const Int_t p, const bool b=true)

TF2 *	GetFitFunction ()

virtual void	SetCalcAll ()=0

virtual void	SetCalcNone ()=0

virtual void	SetFunction ()=0

virtual void	ScaleFunction (const Double_t s)=0

virtual void	NormaliseFunction (const Double_t nor=1.)

virtual void	DrawHisto (const char *opts="", const Double_t zinf=0., const Double_t zsup=0.)

virtual void	DrawFunction (const char *opts="")

virtual void	DrawFctResult (TVirtualPad *pad, const ROptionString &opts="")

virtual void	DrawDifResult (TVirtualPad *pad, const ROptionString &opts="")

virtual void	DrawFitResult (TVirtualPad *pad, const ROptionString &opts="")

virtual void	FillFunctionHisto (TH2 *hptr)

virtual TH2 *	GetFunctionHisto (const char *name)

virtual TH2 *	GetDifferenceHisto (const char *name)

virtual TH2 *	GetSqrtHisto (const char *name)

virtual TH2 *	GetSqrtPosHisto (const char *name)

virtual TH2 *	GetSqrtNegHisto (const char *name)

virtual Double_t	Eval (const Double_t x, const Double_t y)

virtual void	GetRandom (Double_t &x, Double_t &y)

virtual TH2 *	GetRandomHisto (const char *name, const Int_t n)

virtual void	FillRandomHisto (TH2 *hptr, const Int_t n)

virtual void	Preset ()

virtual Double_t	Fit (const char *opts="")

virtual string	GetFitText () const =0

virtual bool	PrintFit (const string &fname) const

virtual bool	PrintFit (FILE *fptr=stdout) const

virtual bool	WriteParam (const string &fname) const

virtual bool	WriteParam (FILE *fptr=stdout) const

virtual bool	WriteOutput (const string &fname) const

virtual bool	WriteOutput (FILE *fptr=stdout) const

virtual RFitData2D *	CreateFitData ()=0

virtual RFitData2D *	GetFitData ()

virtual void	SetFitData (const RFitData2D *fit_data)

	ClassDef (RFitBase2D, 0)

Public Member Functions inherited from RFitData2D
	RFitData2D ()

	RFitData2D (const RFitData2D &original)

RFitData2D &	operator= (const RFitData2D &original)

virtual	~RFitData2D ()

virtual void	GetFitLimits (Double_t &x1, Double_t &x2, Double_t &y1, Double_t &y2) const

virtual Double_t	GetFitYmin () const

virtual Double_t	GetFitYmax () const

virtual void	SetPlotLimits (const Double_t x1, const Double_t x2, const Double_t y1, const Double_t y2)

virtual void	GetPlotLimits (Double_t &x1, Double_t &x2, Double_t &y1, Double_t &y2) const

virtual Double_t	GetPlotYmin () const

virtual Double_t	GetPlotYmax () const

virtual Bool_t	IsLogZ () const

	ClassDef (RFitData2D, 0)

Public Member Functions inherited from RFitData1D
	RFitData1D ()

	RFitData1D (const RFitData1D &original)

RFitData1D &	operator= (const RFitData1D &original)

virtual	~RFitData1D ()

virtual void	SetFitLimits (Double_t x1, Double_t x2)

virtual void	GetFitLimits (Double_t &x1, Double_t &x2) const

virtual Double_t	GetFitXmin () const

virtual Double_t	GetFitXmax () const

virtual void	SetPlotLimits (Double_t x1, Double_t x2)

virtual void	GetPlotLimits (Double_t &x1, Double_t &x2) const

virtual Double_t	GetPlotXmin () const

virtual Double_t	GetPlotXmax () const

virtual Bool_t	IsLogX () const

virtual Bool_t	IsLogY () const

	ClassDef (RFitData1D, 0)

Public Member Functions inherited from RFitDataBase
	RFitDataBase ()

	RFitDataBase (const RFitDataBase &original)

RFitDataBase &	operator= (const RFitDataBase &original)

virtual	~RFitDataBase ()

virtual UInt_t	GetFitOptions () const

virtual Int_t	GetFitMode () const

virtual Int_t	GetParNumber () const

virtual Int_t	GetFixNumber () const

virtual Double_t	GetParValue (const Int_t p) const

virtual Double_t	GetParError (const Int_t p) const

virtual Double_t	GetCovariance (const Int_t p, const Int_t q) const

virtual bool	IsFixParameter (const Int_t p) const

virtual Int_t	GetFitResult () const

virtual Double_t	GetFitChi2 () const

virtual Int_t	GetFitNDF () const

virtual Double_t	GetFitFCN () const

virtual Double_t	GetFitEDM () const

virtual Double_t	GetFitErrDef () const

virtual Int_t	SaveFitData (const string &fname) const =0

virtual Int_t	LoadFitData (const string &fname)=0

	ClassDef (RFitDataBase, 0)

Static Public Member Functions
static bool	Zero (const Double_t val)

static UInt_t	GetStaticOptions ()

static bool	GetStaticOption (const UInt_t opt)

static Int_t	GetStaticParNumber ()

static void	SetFctLineAtt (const TAttLine att)

static void	SetFctLineAtt (const Color_t c, const Style_t s, const Width_t w)

Protected Member Functions
void	ClassInit ()

virtual bool	SetHisto (TH2 hptr, TH2 herr=NULL)

Protected Member Functions inherited from RFitData2D
virtual Int_t	WriteData (FILE *fp) const

virtual RFitData2D *	ReadFitData (const string &fname)=0

Protected Attributes
TH2 *	histo_ptr
	Pointeur sur l'histogramme � fitter.

TH2 *	herr1_ptr
	Pointeur sur l'histogramme d'erreur n�gatif.

TH2 *	herr2_ptr
	Pointeur sur l'histogramme d'erreur positif.

bool	histo_err
	Indique si l'histo est fitt� avec une erreur.

string	par_name [50]
	tableau des noms de param�tres

Int_t	ix_min
	Borne inf�rieure du fit en canaux de l'histogramme.

Int_t	ix_max
	Borne sup�rieure du fit en canaux de l'histogramme.

Int_t	nx_bin
	Nombre de bins de la zone de fit.

Int_t	iy_min
	Borne inf�rieure du fit en canaux de l'histogramme.

Int_t	iy_max
	Borne sup�rieure du fit en canaux de l'histogramme.

Int_t	ny_bin
	Nombre de bins de la zone de fit.

TF2 *	fct_ptr
	Pointeur sur la fonction de fit.

Protected Attributes inherited from RFitData2D
Double_t	fit_ymin
	Fit limit.

Double_t	fit_ymax
	Fit limit.

Double_t	plot_ymin
	Plot limit.

Double_t	plot_ymax
	Plot limit.

Bool_t	plot_logz
	Log scale for plot.

Protected Attributes inherited from RFitData1D
Double_t	fit_xmin
	Fit limit.

Double_t	fit_xmax
	Fit limit.

Double_t	plot_xmin
	Plot limit.

Double_t	plot_xmax
	Plot limit.

Bool_t	plot_logx
	Log scale for plot.

Bool_t	plot_logy
	Log scale for plot.

Protected Attributes inherited from RFitDataBase
UInt_t	fit_options
	Fit options.

Int_t	fit_mode
	Fit mode (Chi2 or Log-likelyhood)

Int_t	fit_result
	Fit result.

Double_t	fit_chi2
	Chi2.

Int_t	fit_ndf
	Number of degrees of freedom.

Double_t	fit_fcn
	Minimized function value (FCN)

Double_t	fit_edm
	Estimated distance to minimum.

Double_t	fit_err_def
	Error matrix status.

Int_t	par_number
	Number of fit parameters (total)

Double_t	par_val [50]
	Parameters values.

Double_t	par_err [50]
	Uncertainties values.

bool	par_fix [50]
	Fix parameters.

Double_t	par_cov [50][50]
	Covariance matrix.

Static Protected Attributes
static Double_t	epsilon = 1.e-12
	Test du z�ro

static UInt_t	fit_options = 0
	Options pour le fit (statique pour �tre vue dans la fonction de fit)

static Int_t	fit_mode = RFitModes::fitChi2
	Mode de fit (Chi2 ou Log-likelyhood)

static Int_t	par_number = 0
	Nombre de param�tres pour le fit.

static Double_t	histo_bin_x = 1.
	Largeur de bin de l'histogramme (pour calcul avec la surface comme param�tre)

static Double_t	histo_bin_y = 1.
	Largeur de bin de l'histogramme (pour calcul avec la surface comme param�tre)

static TAttLine	latt_histo = TAttLine ( 1, 1, 1 )
	Attributs de lignes pour trac� de l'histogramme.

static TAttLine	latt_error = TAttLine ( 17, 1, 0 )
	Attributs de lignes pour trac� de l'erreur.

static TAttFill	fatt_error = TAttFill ( 17, 1000 )
	Attributs de remplissage pour trac� de l'erreur.

static TAttLine	latt_fct = TAttLine ( 2, 1, 1 )
	Attributs de lignes pour trac� de la fonction globale.

static Double_t	pad_theta = 30.
	Angle de vue pour les trac�s 3D (en degr�s)

static Double_t	pad_phi = 30.
	Angle de vue pour les trac�s 3D (en degr�s)

Private Member Functions
	GObjectV (RFitBase2D)

Additional Inherited Members
Static Protected Member Functions inherited from RFitData2D
static Int_t	ReadData (FILE *fp, RFitData2D &fdata)

Static Protected Member Functions inherited from RFitData1D
static Int_t	ReadData (FILE *fp, RFitData1D &fdata)

Static Protected Member Functions inherited from RFitDataBase
static Int_t	ReadData (FILE *fp, RFitDataBase &fdata)

Detailed Description

Base class for 2D fit classes.

Note: Variables and functions used by fitting functions are static, which causes that some of them are defined twice, since they are already defined in the fit data class. The fit classes take care of this problem, so that static and non static variable remain consistant. These variables have to be static so that external fit functions can access them (like options, ...).

Constructor & Destructor Documentation

RFitBase2D::RFitBase2D ( )

Default constructor, used for virtual multiple inheritance.

References ClassInit(), RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, histo_bin_x, histo_bin_y, ix_max, ix_min, iy_max, iy_min, nx_bin, and ny_bin.

RFitBase2D::RFitBase2D	(	TH2 *	hptr,
		TH2 *	herr = `NULL`
	)

Constructeur.

Parameters

hptr	pointer to fitted histogram
herr	pointer to error histogram (default is NULL)

References ClassInit(), histo_ptr, InitMode(), SetFitLimits(), and SetHisto().

RFitBase2D::RFitBase2D	(	TH2 *	hptr,
		const RFitData2D &	fit_data
	)

Constructeur avec initialisation du fit.

Parameters

hptr	pointer to fitted histogram
fit_data	initialization data

References ClassInit(), histo_ptr, SetFitData(), and SetHisto().

RFitBase2D::RFitBase2D	(	TH2 *	hptr,
		TH2 *	herr,
		const RFitData2D &	fit_data
	)

Constructeur avec erreurs et initialisation du fit.

Parameters

hptr	pointer to fitted histogram
herr	pointer to error histogram
fit_data	initialization data

References ClassInit(), histo_ptr, SetFitData(), and SetHisto().

RFitBase2D::RFitBase2D ( const RFitBase2D & original )

Copy constructor: not implemented.

Parameters

original object to copy

References ClassInit().

RFitBase2D::~RFitBase2D ( )

virtual

Destructor.

References fct_ptr, herr1_ptr, herr2_ptr, and histo_ptr.

Member Function Documentation

RFitBase2D::GObjectV ( RFitBase2D )

private

Macro from GCpp library that defines the following functions:

ClassName(): return the real class name of the object
StaticClassName(): return the used class name of the object (that may be a base class of the real object).
IsInstanceOf<T>(): return true if the current object is an instance of the template class name argument
Clone(): return an allocated copy of the object.

void RFitBase2D::ClassInit ( )

protected

Initialization function, called by constructors.

References fct_ptr, herr1_ptr, herr2_ptr, histo_err, histo_ptr, par_name, and RFIT_MAX_PAR.

Referenced by RFitBase2D().

bool RFitBase2D::Zero ( const Double_t val )

inlinestatic

Test for zero approximation (see static class variable epsilon).

Parameters

val	tested value

References epsilon.

Referenced by RGFitGaus2D::PointsToParamComponent(), RGFitGaus2D::PointsToWidgetComponent(), RFitGaus2D::PresetBg(), RGFitGaus2D::RedrawPoints(), RFitGaus2D::SetAbsAmplitude(), RFitGaus2D::SetAbsFactor(), RFitGaus2D::SetAbsSigma1(), and RFitGaus2D::SetAbsSigma2().

void RFitBase2D::SetAngles3D	(	const Double_t	theta,
		const Double_t	phi
	)

inlinevirtual

Set angles for 3D plot views.

Parameters

theta	inclination angle
phi	azimutal angle

References pad_phi, and pad_theta.

bool RFitBase2D::SetHisto	(	TH2 *	hptr,
		TH2 *	herr = `NULL`
	)

protectedvirtual

Set the histogram to be fitted, and optionnaly the histogram containing the uncertainty (if not set, the first histogram error is considered by default). The error histogram must have the same binning that the fitted histogram.

Parameters

hptr	pointer to histogram to fit
herr	pointer to uncertainty histogram

References fatt_error, fit_mode, RFitModes::fitLikelyhood, herr1_ptr, herr2_ptr, histo_err, histo_ptr, latt_error, and latt_histo.

Referenced by RFitBase2D(), and RFitGaus2D::RFitGaus2D().

void RFitBase2D::Reset ( )

virtual

Reset fit results: parameters, errors and result.

Reimplemented from RFitDataBase.

References par_name, RFitDataBase::Reset(), and RFIT_MAX_PAR.

Referenced by InitMode(), RFitGaus2D::InitMode(), and SetFitData().

void RFitBase2D::InitMode ( )

virtual

Initialize the fitter data, static or not, when fit options are modified.

Reimplemented in RFitGaus2D.

References RFitDataBase::fit_mode, fit_mode, RFitDataBase::fit_options, fit_options, histo_bin_x, histo_bin_y, histo_ptr, par_number, RFitDataBase::par_number, and Reset().

Referenced by RGFitBase2D::GuiReset(), RFitBase2D(), SetFitData(), and SetOption().

void RFitBase2D::SetOptions ( const UInt_t opts )

inlinevirtual

Set all options (option bit pattern).

Parameters

opts	options bit pattern

Reimplemented in RGFitGaus2D.

References fit_options, and SetOption().

Referenced by SetFitData(), and RGFitGaus2D::SetOptions().

void RFitBase2D::SetOption	(	const UInt_t	opt,
		const bool	b = `true`
	)

virtual

Set an option status

Parameters

opt	option (binary mask)
b	status

Reimplemented in RGFitGaus2D.

References fit_options, and InitMode().

Referenced by RGFitGaus2D::CommonCorrelToggled(), RGFitGaus2D::CommonSigmaToggled(), RGFitGaus2D::OptCountsToggled(), RGFitGaus2D::OptErrToggled(), RGFitGaus2D::OptModeThetaToggled(), RGFitGaus2D::SetOption(), and SetOptions().

UInt_t RFitBase2D::GetStaticOptions ( )

inlinestatic

Get options bit pattern.

References fit_options.

Referenced by RGFitGaus2D::GetOptions().

bool RFitBase2D::GetStaticOption ( const UInt_t opt )

inlinestatic

Get status of selected options

Parameters

opt	selected options mask

References fit_options.

Referenced by RFitGaus2D::DrawEllipse(), Fit(), RFitGaus2D::GetAmplitude(), RFitGaus2D::GetAmplitudeError(), RFitGaus2D::GetCounts(), RFitGaus2D::GetCountsError(), RFitGaus2D::GetEllipse(), RFitGaus2D::GetFitText(), RGFitGaus2D::GetOption(), RFitGaus2D::GetTheta(), RFitGaus2D::InitMode(), RFitGaus2DFunction(), RFitGaus2D::SetAbsAmplitude(), RFitGaus2D::SetAmplitude(), and RFitGaus2D::SetRelativeSigma().

Int_t RFitBase2D::GetStaticParNumber ( )

inlinestatic

Get the number of fit parameters.

References par_number.

Referenced by FixParameter(), GetParName(), and SetParValue().

void RFitBase2D::SetFitMode ( const Int_t mode )

inlinevirtual

Set the fit mode: chi2 minimisation or maximum likelyhood, see namespace RFitModes).

Parameters

mode	selected mode

Reimplemented in RGFitBase2D.

References fit_mode, RFitModes::fitChi2, and RFitModes::fitLikelyhood.

Referenced by SetFitData(), and RGFitBase2D::SetFitMode().

void RFitBase2D::SetFitLimits	(	const Double_t	x1,
		const Double_t	x2,
		const Double_t	y1,
		const Double_t	y2
	)

virtual

Set the fit limits. They are adjusted to fit with histogram binning. Lower and upper bins are calculated.

Parameters

x1	lower X limit
x2	upper X limit
y1	lower Y limit
y2	upper Y limit

Reimplemented from RFitData2D.

Reimplemented in RGFitBase2D, RGFitGaus2D, and RFitGaus2D.

References RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, histo_bin_x, histo_bin_y, histo_ptr, ix_max, ix_min, iy_max, iy_min, nx_bin, and ny_bin.

Referenced by RGFitBase2D::FitXInfLimitTextChanged(), RGFitBase2D::FitXSupLimitTextChanged(), RGFitBase2D::FitYInfLimitTextChanged(), RGFitBase2D::FitYSupLimitTextChanged(), RFitBase2D(), SetFitData(), RFitGaus2D::SetFitLimits(), and RGFitBase2D::SetFitLimits().

void RFitBase2D::SetParValue	(	const Int_t	p,
		const Double_t	val
	)

inlinevirtual

Initialize a fit parameter.

Parameters

p	parameter number
val	parameter vaue

References GetStaticParNumber(), and RFitDataBase::par_val.

string RFitBase2D::GetParName ( const Int_t p ) const

inlinevirtual

Get fit parameter name.

Parameters

p	parameter number

References GetStaticParNumber(), and par_name.

Referenced by RFitGaus2D::GetFitText().

void RFitBase2D::FixParameter	(	const Int_t	p,
		const bool	b = `true`
	)

virtual

Fix (or release) a fit parameter.

Parameters

p	parameter number
b	fix (true) or release (false)

References GetStaticParNumber(), and RFitDataBase::par_fix.

Referenced by RGFitGaus2D::BgPreset(), RGFitGaus2D::CommonCorrelToggled(), RGFitGaus2D::CommonSigmaToggled(), RGFitGaus2D::ComponentPreset(), RGFitGaus2D::FixCorrelClicked(), RGFitGaus2D::FixParamClicked(), RGFitGaus2D::FixSigma1Clicked(), RGFitGaus2D::FixSigma2Clicked(), RGFitGaus2D::WidgetsToParamBg(), and RGFitGaus2D::WidgetsToParamComponent().

TF2 * RFitBase2D::GetFitFunction ( )

inline

Return the pointer to the ROOT function used for fitting. Warning: the function should not be modified outside the fitter object !

References fct_ptr.

void RFitBase2D::SetFctLineAtt ( const TAttLine att )

inlinestatic

Set fit function line attributes for plot.

Parameters

att	line attributes

References latt_fct.

void RFitBase2D::SetFctLineAtt	(	const Color_t	c,
		const Style_t	s,
		const Width_t	w
	)

inlinestatic

Set fit function line attributes for plot.

Parameters

c	color
s	style
w	width

References latt_fct.

virtual void RFitBase2D::SetCalcAll ( )

pure virtual

Indicate that all components of the fit function must be included.

Implemented in RFitGaus2D.

Referenced by Fit(), GetDifferenceHisto(), GetFunctionHisto(), GetSqrtNegHisto(), and GetSqrtPosHisto().

virtual void RFitBase2D::SetCalcNone ( )

pure virtual

Indicate that none of the components of the fit function must be included.

Implemented in RFitGaus2D.

void RFitBase2D::SetFunction ( )

pure virtual

Defines the fit function and the parameters.

Initialization of the function and parameters. The function should be overloaded according to the type of fit.

Implemented in RFitGaus2D.

References fct_ptr, RFitDataBase::par_fix, par_name, par_number, and RFitDataBase::par_val.

Referenced by Eval(), FillRandomHisto(), Fit(), GetDifferenceHisto(), GetFunctionHisto(), GetSqrtNegHisto(), and GetSqrtPosHisto().

virtual void RFitBase2D::ScaleFunction ( const Double_t s )

pure virtual

Scale the function, and adjust parameters according to the scale.

Parameters

s	scaling factor

Implemented in RFitGaus2D.

Referenced by NormaliseFunction().

void RFitBase2D::NormaliseFunction ( const Double_t nor = 1. )

virtual

Function that modifies normalises the function integral. In derived classes for specific type of fits, the parameters should be adjusted.

Parameters

nor	normalization value

References fct_ptr, RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, and ScaleFunction().

void RFitBase2D::DrawHisto	(	const char *	opts = `""`,
		const Double_t	zinf = `0.`,
		const Double_t	zsup = `0.`
	)

virtual

Plot the histogram, including uncertainty if it is defined.

Parameters

opts	ROOT plotting options
zinf	lower plotting Z value
zsup	upper plotting Z value

References histo_ptr.

Referenced by DrawFctResult(), and RFitGaus2D::DrawFctResult().

void RFitBase2D::DrawFunction ( const char * opts = "" )

virtual

Plot fit functions, with all components.

Parameters

opts	ROOT plot options (see ROOT class TF1)

References GetFunctionHisto(), and histo_ptr.

Referenced by DrawFctResult(), and RFitGaus2D::DrawFctResult().

void RFitBase2D::DrawFctResult	(	TVirtualPad *	pad,
		const ROptionString &	opts = `""`
	)

virtual

Plot the histogram, the fit function and its components in an existing pad.

Parameters

pad	pad pointer
opts	results plot options

Reimplemented in RFitGaus2D.

References DrawFunction(), DrawHisto(), RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, histo_bin_x, histo_bin_y, histo_ptr, pad_phi, and pad_theta.

Referenced by RGFitDisplayer2D::DrawFitResult(), and DrawFitResult().

void RFitBase2D::DrawDifResult	(	TVirtualPad *	pad,
		const ROptionString &	opts = `""`
	)

virtual

Plot the difference between histogram and fit function in an existing pad.

Parameters

pad	pad pointer
opts	results plot options

References RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, GetDifferenceHisto(), histo_bin_x, histo_bin_y, pad_phi, pad_theta, and RSetPaletteZero().

Referenced by DrawFitResult().

void RFitBase2D::DrawFitResult	(	TVirtualPad *	pad,
		const ROptionString &	opts = `""`
	)

virtual

Plot the histogram, the fit function and its components in an existing pad, and the difference between histogram and fit result.

The options are:

LOGX log-scale on X axis
LOGY log-scale on Y axis
LOGZ log-scale on Z axis
FIT3D 3D plot for fit function (default is 2D)
DIF3D 3D plot for difference (default is 2D)
ALL3D 3D plot for all (default is 2D)

Parameters

pad	pad pointer
opts	results plot options

References DrawDifResult(), and DrawFctResult().

Referenced by RGFitDisplayer2D::DrawFitResult().

void RFitBase2D::FillFunctionHisto ( TH2 * hptr )

virtual

Fill an existing histogram with fit function values.

Parameters

hptr	histogram pointer

References fct_ptr.

Referenced by RFitGaus2D::GetBgHisto(), RFitGaus2D::GetComponentHisto(), and GetFunctionHisto().

TH2 * RFitBase2D::GetFunctionHisto ( const char * name )

virtual

Allocate a new histogram filled with fit function values. The returned histogram must be deleted by calling program.

Parameters

name	histogram name

References FillFunctionHisto(), RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, latt_fct, nx_bin, ny_bin, SetCalcAll(), and SetFunction().

Referenced by RGFitGaus2D::CalcFunctions(), RGFitBase2D::CalcFunctions(), DrawFunction(), and FillRandomHisto().

TH2 * RFitBase2D::GetDifferenceHisto ( const char * name )

virtual

Fonction qui renvoit un histogramme avec la diff�rence entre l'histogramme et la fonction de fit. (erreur statistique).

Parameters

name	nom de l'histogramme

References fct_ptr, RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, histo_bin_x, histo_bin_y, histo_ptr, ix_min, iy_min, nx_bin, ny_bin, SetCalcAll(), and SetFunction().

Referenced by RGFitGaus2D::CalcFunctions(), RGFitBase2D::CalcFunctions(), and DrawDifResult().

TH2 * RFitBase2D::GetSqrtHisto ( const char * name )

inlinevirtual

Get a pointer to an histogram filled with the square root of the fit function (statistical uncertainty). The function is supposed to be positive: if this is not the case, the bin values are set to 0.

Parameters

name	histogram name

References GetSqrtPosHisto().

TH2 * RFitBase2D::GetSqrtPosHisto ( const char * name )

virtual

Fonction qui renvoit un histogramme avec la racine carr�e de la fonction (erreur statistique). La fonction est suppos�e �tre positive ! Si ce n'est pas le cas, les canaux sont mis � 0.

Parameters

name	nom de l'histogramme

References fct_ptr, RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, histo_bin_x, histo_bin_y, latt_fct, nx_bin, ny_bin, SetCalcAll(), and SetFunction().

Referenced by RGFitGaus2D::CalcFunctions(), RGFitBase2D::CalcFunctions(), and GetSqrtHisto().

TH2 * RFitBase2D::GetSqrtNegHisto ( const char * name )

virtual

Fonction qui renvoit un histogramme avec le n�gatif de la racine carr�e de la fonction (erreur statistique). La fonction est suppos�e �tre positive ! Si ce n'est pas le cas, les canaux sont mis � 0.

Parameters

name	nom de l'histogramme

References fct_ptr, RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, histo_bin_x, histo_bin_y, latt_fct, nx_bin, ny_bin, SetCalcAll(), and SetFunction().

Referenced by RGFitGaus2D::CalcFunctions(), and RGFitBase2D::CalcFunctions().

Double_t RFitBase2D::Eval	(	const Double_t	x,
		const Double_t	y
	)

virtual

Evalue la valeur de la fonction, avec les param�tres en cours.

Parameters

x	coordonn�e X du point pour lequel la fonction doit �tre calcul�e
y	coordonn�e Y du point pour lequel la fonction doit �tre calcul�e

References fct_ptr, and SetFunction().

void RFitBase2D::GetRandom	(	Double_t &	x,
		Double_t &	y
	)

virtual

Tirage al�atoire d'une valeur selon la fonction.

Parameters

x	coordonn�e X du point al�atoire
y	coordonn�e Y du point al�atoire

References fct_ptr, RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, and RFitData2D::fit_ymin.

TH2 * RFitBase2D::GetRandomHisto	(	const char *	name,
		const Int_t	n
	)

virtual

Cr�ation d'un histogramme � partir d'un tirage al�atoire sur la fonction de fit.

Parameters

name	nom de l'histogramme
n	nombre d'entr�es de l'histogramme

References FillRandomHisto(), RFitData1D::fit_xmax, RFitData1D::fit_xmin, RFitData2D::fit_ymax, RFitData2D::fit_ymin, nx_bin, and ny_bin.

void RFitBase2D::FillRandomHisto	(	TH2 *	hptr,
		const Int_t	n
	)

virtual

Remplissage d'un histogramme � partir d'un tirage al�atoire sur la fonction de fit. Pour �viter de recalculer la normalisation � chaque fois (ce qui peut �tre tr�s long pour un nombre de tiages important), la fonction est pass�e dans un histogramme, qui sert pour le remplissage. Pour tirer des valeur al�atoires directement de la fonction de fit, voir la fonction GetRandom.

Parameters

hptr	pointeur de l'histogramme
n	nombre d'entr�es de l'histogramme

References GetFunctionHisto(), and SetFunction().

Referenced by GetRandomHisto().

void RFitBase2D::Preset ( )

inlinevirtual

Parameters preset function before fit: in the base class, nothing is done (it may be overloaded in derived classes).

Referenced by RGFitBase2D::GuiPreset().

Double_t RFitBase2D::Fit ( const char * opts = "" )

virtual

Fonction qui r�alise le fit de l'histogramme, et retourne le chi2 normalis� obtenu. En cas de normalisation des erreurs par le chi2, la valeur retourn�e est la valeur du chi2 avant la normalisation (ben, oui, apr�s, il vaut 1, �a n'a pas tellement d'int�r�t...).

Parameters