ROOT  6.06/09
Reference Guide
Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
TF1NormSum Class Reference
Histogram Library

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...
 
double operator() (double *x, double *p)
 Overload the parenthesis to add the functions. More...
 
std::vector< double > GetParameters () const
 Return array of parameters. More...
 
void SetScale (Double_t scale)
 
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...
 
Int_t GetNpar () const
 
Double_t GetScale () const
 
const char * GetParName (Int_t ipar) const
 

Protected Member Functions

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

Protected Attributes

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

#include <TF1NormSum.h>

+ Collaboration diagram for TF1NormSum:

Constructor & Destructor Documentation

TF1NormSum::TF1NormSum ( )

Definition at line 108 of file TF1NormSum.cxx.

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::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::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::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

Int_t TF1NormSum::GetNpar ( ) const

Definition at line 362 of file TF1NormSum.cxx.

Referenced by TFitEditor::GetFitFunction(), GetParameters(), and InitializeDataMembers().

std::vector< double > TF1NormSum::GetParameters ( ) const

Return array of parameters.

Definition at line 293 of file TF1NormSum.cxx.

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

Definition at line 70 of file TF1NormSum.h.

Referenced by TFitEditor::GetFitFunction(), and InitializeDataMembers().

Double_t TF1NormSum::GetScale ( ) const
inline

Definition at line 68 of file TF1NormSum.h.

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.

Referenced by TF1NormSum().

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

Overload the parenthesis to add the functions.

Definition at line 277 of file TF1NormSum.cxx.

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.

Referenced by operator()(), and SetParameters().

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.

void TF1NormSum::SetScale ( Double_t  scale)
inline

Definition at line 59 of file TF1NormSum.h.

Member Data Documentation

std::vector< Double_t > TF1NormSum::fCoeffs
protected

Definition at line 36 of file TF1NormSum.h.

Referenced by GetParameters(), InitializeDataMembers(), operator()(), SetParameters(), and TF1NormSum().

std::vector< Int_t > TF1NormSum::fCstIndexes
protected

Definition at line 41 of file TF1NormSum.h.

Referenced by GetNpar(), GetParameters(), InitializeDataMembers(), SetParameters(), and TF1NormSum().

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

Definition at line 35 of file TF1NormSum.h.

Referenced by GetNpar(), GetParameters(), InitializeDataMembers(), operator()(), SetParameters(), and TF1NormSum().

unsigned int TF1NormSum::fNOfFunctions
protected

Definition at line 32 of file TF1NormSum.h.

Referenced by GetNpar(), GetParameters(), InitializeDataMembers(), operator()(), SetParameters(), and TF1NormSum().

std::vector< TString > TF1NormSum::fParNames
protected

Definition at line 42 of file TF1NormSum.h.

Referenced by InitializeDataMembers().

Double_t TF1NormSum::fScale
protected

Number of functions to add.

Definition at line 34 of file TF1NormSum.h.

Referenced by GetScale(), InitializeDataMembers(), operator()(), and TF1NormSum().

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