TF1NormSum Class Reference

Class adding two functions: c1*f1+c2*f2.

Definition at line 26 of file TF1NormSum.h.

Public Member Functions
	TF1NormSum ()
	TF1NormSum (const std::vector< TF1 *> &functions, const std::vector< Double_t > &coeffs, Double_t scale=1.)
	TF1NormSum (TF1 *function1, TF1 *function2, Double_t coeff1=1., Double_t coeff2=1., Double_t scale=1.)
	TF1NormSum constructor taking 2 functions, and 2 coefficients (if not equal to 1) More...
	TF1NormSum (TF1 *function1, TF1 *function2, TF1 *function3, Double_t coeff1=1., Double_t coeff2=1., Double_t coeff3=1., Double_t scale=1.)
	TF1NormSum constructor taking 3 functions, and 3 coefficients (if not equal to 1) More...
	TF1NormSum (const TString &formula, Double_t xmin, Double_t xmax)
	TF1NormSum constructor taking any addition of formulas with coefficient or not. More...
Int_t	GetNpar () const
std::vector< double >	GetParameters () const
	Return array of parameters. More...
const char *	GetParName (Int_t ipar) const
Double_t	GetScale () const
double	operator() (double *x, double *p)
	Overload the parenthesis to add the functions. More...
void	SetParameters (const double *params)
	Initialize array of all parameters. More...
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.)
	Initialize array of all parameters. More...
void	SetScale (Double_t scale)

Protected Member Functions
void	InitializeDataMembers (const std::vector< std::shared_ptr< TF1 >> &functions, const std::vector< Double_t > &coeffs, Double_t scale)

Protected Attributes
std::vector< Double_t >	fCoeffs
std::vector< Int_t >	fCstIndexes
std::vector< std::shared_ptr< TF1 > >	fFunctions
unsigned int	fNOfFunctions
std::vector< TString >	fParNames
Double_t	fScale
	Number of functions to add. More...

#include <TF1NormSum.h>

Constructor & Destructor Documentation

TF1NormSum() [1/5]

TF1NormSum::TF1NormSum

(

)

Definition at line 108 of file TF1NormSum.cxx.

TF1NormSum() [2/5]

TF1NormSum::TF1NormSum	(	const std::vector< TF1 *> &	functions,
		const std::vector< Double_t > &	coeffs,
		Double_t	scale = 1.
	)

Definition at line 119 of file TF1NormSum.cxx.

TF1NormSum() [3/5]

TF1NormSum::TF1NormSum	(	TF1 *	function1,
		TF1 *	function2,
		Double_t	coeff1 = 1.,
		Double_t	coeff2 = 1.,
		Double_t	scale = 1.
	)

TF1NormSum constructor taking 2 functions, and 2 coefficients (if not equal to 1)

Definition at line 133 of file TF1NormSum.cxx.

TF1NormSum() [4/5]

TF1NormSum::TF1NormSum	(	TF1 *	function1,
		TF1 *	function2,
		TF1 *	function3,
		Double_t	coeff1 = 1.,
		Double_t	coeff2 = 1.,
		Double_t	coeff3 = 1.,
		Double_t	scale = 1.
	)

TF1NormSum constructor taking 3 functions, and 3 coefficients (if not equal to 1)

Definition at line 163 of file TF1NormSum.cxx.

TF1NormSum() [5/5]

TF1NormSum::TF1NormSum	(	const TString &	formula,
		Double_t	xmin,
		Double_t	xmax
	)

TF1NormSum constructor taking any addition of formulas with coefficient or not.

• example 1 : 2.*expo + gauss + 0.5* gauss
• example 2 : expo + 0.3*f1 if f1 is defined in the list of fucntions

Definition at line 202 of file TF1NormSum.cxx.

Member Function Documentation

GetNpar()

Int_t TF1NormSum::GetNpar

(

)

const

Definition at line 362 of file TF1NormSum.cxx.

GetParameters()

std::vector< double > TF1NormSum::GetParameters

(

)

const

Return array of parameters.

Definition at line 293 of file TF1NormSum.cxx.

GetParName()

const char* TF1NormSum::GetParName ( Int_t  ipar ) const

inline

Definition at line 70 of file TF1NormSum.h.

GetScale()

Double_t TF1NormSum::GetScale ( ) const

inline

Definition at line 68 of file TF1NormSum.h.

InitializeDataMembers()

void TF1NormSum::InitializeDataMembers ( const std::vector< std::shared_ptr< TF1 >> &  functions, const std::vector< Double_t > &  coeffs, Double_t  scale  )

protected

Definition at line 65 of file TF1NormSum.cxx.

operator()()

double TF1NormSum::operator()	(	double *	x,
		double *	p
	)

Overload the parenthesis to add the functions.

Definition at line 277 of file TF1NormSum.cxx.

SetParameters() [1/2]

void TF1NormSum::SetParameters

(

const double *

params

)

Initialize array of all parameters.

double *params must contains first an array of the coefficients, then an array of the parameters.

Definition at line 317 of file TF1NormSum.cxx.

SetParameters() [2/2]

void TF1NormSum::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.
	)

Initialize array of all parameters.

Overload the TF1::SetParameters() method. A maximum of 10 parameters must be used, with first the coefficients, then the parameters

Definition at line 354 of file TF1NormSum.cxx.

SetScale()

void TF1NormSum::SetScale ( Double_t  scale )

inline

Definition at line 59 of file TF1NormSum.h.

Member Data Documentation

fCoeffs

std::vector< Double_t > TF1NormSum::fCoeffs

protected

Definition at line 36 of file TF1NormSum.h.

fCstIndexes

std::vector< Int_t > TF1NormSum::fCstIndexes

protected

Definition at line 41 of file TF1NormSum.h.

fFunctions

std::vector< std::shared_ptr < TF1 > > TF1NormSum::fFunctions

protected

Definition at line 35 of file TF1NormSum.h.

fNOfFunctions

unsigned int TF1NormSum::fNOfFunctions

protected

Definition at line 32 of file TF1NormSum.h.

fParNames

std::vector< TString > TF1NormSum::fParNames

protected

Definition at line 42 of file TF1NormSum.h.

fScale

Double_t TF1NormSum::fScale

protected

Number of functions to add.

Definition at line 34 of file TF1NormSum.h.

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

• hist/hist/inc/TF1NormSum.h
• hist/hist/src/TF1NormSum.cxx