fit::HistoChiSquare< T > Class Template Reference

#include <HistoChiSquare.h>

Public Member Functions
T &	function ()
const T &	function () const
	HistoChiSquare ()
	HistoChiSquare (T &t, TH1 *histo, double rangeMin, double rangeMax)
size_t	numberOfBins () const
double	operator() () const
void	setHistos (TH1 *histo)

Private Attributes
std::vector< double >	cont_
double	deltaX_
std::vector< double >	err_
size_t	nBins_
double	rangeMax_
double	rangeMin_
T *	t_
double	xMax_
double	xMin_

Detailed Description

template<typename T>
class fit::HistoChiSquare< T >

Definition at line 10 of file HistoChiSquare.h.

Constructor & Destructor Documentation

template<typename T>

fit::HistoChiSquare< T >::HistoChiSquare ( )

inline

Definition at line 12 of file HistoChiSquare.h.

{ }

template<typename T>

fit::HistoChiSquare< T >::HistoChiSquare ( T &  t, TH1 *  histo, double  rangeMin, double  rangeMax  )

inline

Definition at line 13 of file HistoChiSquare.h.

References fit::HistoChiSquare< T >::cont_, fit::HistoChiSquare< T >::deltaX_, fit::HistoChiSquare< T >::err_, i, fit::HistoChiSquare< T >::nBins_, fit::HistoChiSquare< T >::xMax_, and fit::HistoChiSquare< T >::xMin_.

                                                                       : 
      t_(&t), rangeMin_(rangeMin), rangeMax_(rangeMax) { 
      nBins_ = histo->GetNbinsX();
      xMin_ = histo->GetXaxis()->GetXmin();
      xMax_ = histo->GetXaxis()->GetXmax();
      deltaX_ =(xMax_ - xMin_) / nBins_;
      for(size_t i = 0; i < nBins_; ++i) { 
    cont_.push_back( histo->GetBinContent(i+1) );
    err_.push_back( histo->GetBinError(i+1) );
      }
    }

Member Function Documentation

template<typename T>

T& fit::HistoChiSquare< T >::function ( )

inline

Definition at line 50 of file HistoChiSquare.h.

References fit::HistoChiSquare< T >::t_.

{ return * t_; }

template<typename T>

const T& fit::HistoChiSquare< T >::function ( ) const

inline

Definition at line 51 of file HistoChiSquare.h.

References fit::HistoChiSquare< T >::t_.

{ return * t_; }

template<typename T>

size_t fit::HistoChiSquare< T >::numberOfBins ( ) const

inline

Definition at line 41 of file HistoChiSquare.h.

References fit::HistoChiSquare< T >::deltaX_, i, fit::HistoChiSquare< T >::nBins_, fit::HistoChiSquare< T >::rangeMin_, x(), and fit::HistoChiSquare< T >::xMin_.

Referenced by fit::RootMinuitResultPrinter< HistoChiSquare< T > >::print().

                                {
      size_t fullBins = 0;
      for(size_t i = 0; i < nBins_; ++i) { 
    double x = xMin_ + ( i +.5 ) * deltaX_;
    if((x > rangeMin_)&&(x < rangeMax_)&&(err_[i] > 0))  
      fullBins++;
      }
      return fullBins; 
    }

template<typename T>

double fit::HistoChiSquare< T >::operator() ( ) const

inline

Definition at line 24 of file HistoChiSquare.h.

References HLT_FULL_cff::chi2, fit::HistoChiSquare< T >::cont_, fit::HistoChiSquare< T >::deltaX_, fit::HistoChiSquare< T >::err_, i, fit::HistoChiSquare< T >::nBins_, alignCSCRings::r, fit::HistoChiSquare< T >::rangeMin_, x(), and fit::HistoChiSquare< T >::xMin_.

                              { 
      double chi2 = 0;
      for(size_t i = 0; i < nBins_; ++i) { 
    double x = xMin_ + ( i +.5 ) * deltaX_;
    if((x > rangeMin_)&&(x < rangeMax_)&&(err_[i] > 0)) { 
      double r = ( cont_[i] - (*t_)(x) )/err_[i];
      chi2 += (r * r);
    }
      }
     return chi2;
    }

template<typename T>

void fit::HistoChiSquare< T >::setHistos ( TH1 *  histo )

inline

Definition at line 35 of file HistoChiSquare.h.

References fit::HistoChiSquare< T >::deltaX_, fit::HistoChiSquare< T >::nBins_, fit::HistoChiSquare< T >::xMax_, and fit::HistoChiSquare< T >::xMin_.

                               { 
      nBins_ = histo->GetNbinsX();
      xMin_ = histo->GetXaxis()->GetXmin();
      xMax_ = histo->GetXaxis()->GetXmax();
      deltaX_ =(xMax_ - xMin_) / nBins_;
    }

Member Data Documentation

template<typename T>

std::vector<double> fit::HistoChiSquare< T >::cont_

private

Definition at line 57 of file HistoChiSquare.h.

Referenced by fit::HistoChiSquare< T >::HistoChiSquare(), and fit::HistoChiSquare< T >::operator()().

template<typename T>

double fit::HistoChiSquare< T >::deltaX_

private

Definition at line 56 of file HistoChiSquare.h.

Referenced by fit::HistoChiSquare< T >::HistoChiSquare(), fit::HistoChiSquare< T >::numberOfBins(), fit::HistoChiSquare< T >::operator()(), and fit::HistoChiSquare< T >::setHistos().

template<typename T>

std::vector<double> fit::HistoChiSquare< T >::err_

private

Definition at line 58 of file HistoChiSquare.h.

Referenced by fit::HistoChiSquare< T >::HistoChiSquare(), and fit::HistoChiSquare< T >::operator()().

template<typename T>

size_t fit::HistoChiSquare< T >::nBins_

private

Definition at line 55 of file HistoChiSquare.h.

Referenced by fit::HistoChiSquare< T >::HistoChiSquare(), fit::HistoChiSquare< T >::numberOfBins(), fit::HistoChiSquare< T >::operator()(), and fit::HistoChiSquare< T >::setHistos().

template<typename T>

double fit::HistoChiSquare< T >::rangeMax_

private

Definition at line 54 of file HistoChiSquare.h.

template<typename T>

double fit::HistoChiSquare< T >::rangeMin_

private

Definition at line 54 of file HistoChiSquare.h.

Referenced by fit::HistoChiSquare< T >::numberOfBins(), and fit::HistoChiSquare< T >::operator()().

template<typename T>

T* fit::HistoChiSquare< T >::t_

private

Definition at line 53 of file HistoChiSquare.h.

Referenced by fit::HistoChiSquare< T >::function().

template<typename T>

double fit::HistoChiSquare< T >::xMax_

private

Definition at line 56 of file HistoChiSquare.h.

Referenced by fit::HistoChiSquare< T >::HistoChiSquare(), and fit::HistoChiSquare< T >::setHistos().

template<typename T>

double fit::HistoChiSquare< T >::xMin_

private

Definition at line 56 of file HistoChiSquare.h.

Referenced by fit::HistoChiSquare< T >::HistoChiSquare(), fit::HistoChiSquare< T >::numberOfBins(), fit::HistoChiSquare< T >::operator()(), and fit::HistoChiSquare< T >::setHistos().