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

HistoChiSquare() [1/2]

template<typename T>

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

inline

Definition at line 12 of file HistoChiSquare.h.

{}

HistoChiSquare() [2/2]

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_, timingPdfMaker::histo, mps_fire::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

function() [1/2]

template<typename T>

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

inline

Definition at line 50 of file HistoChiSquare.h.

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

{ return *t_; }

function() [2/2]

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_; }

numberOfBins()

template<typename T>

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

inline

Definition at line 41 of file HistoChiSquare.h.

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

                                {
      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;
    }

operator()()

template<typename T>

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

inline

Definition at line 24 of file HistoChiSquare.h.

References isoTrack_cff::chi2, fit::HistoChiSquare< T >::cont_, fit::HistoChiSquare< T >::deltaX_, fit::HistoChiSquare< T >::err_, mps_fire::i, fit::HistoChiSquare< T >::nBins_, 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;
    }

setHistos()

template<typename T>

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

inline

Definition at line 35 of file HistoChiSquare.h.

References fit::HistoChiSquare< T >::deltaX_, timingPdfMaker::histo, 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

cont_

template<typename T>

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

private

Definition at line 58 of file HistoChiSquare.h.

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

deltaX_

template<typename T>

double fit::HistoChiSquare< T >::deltaX_

private

Definition at line 57 of file HistoChiSquare.h.

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

err_

template<typename T>

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

private

Definition at line 59 of file HistoChiSquare.h.

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

nBins_

template<typename T>

size_t fit::HistoChiSquare< T >::nBins_

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().

rangeMax_

template<typename T>

double fit::HistoChiSquare< T >::rangeMax_

private

Definition at line 55 of file HistoChiSquare.h.

rangeMin_

template<typename T>

double fit::HistoChiSquare< T >::rangeMin_

private

Definition at line 55 of file HistoChiSquare.h.

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

t_

template<typename T>

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

private

Definition at line 54 of file HistoChiSquare.h.

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

xMax_

template<typename T>

double fit::HistoChiSquare< T >::xMax_

private

Definition at line 57 of file HistoChiSquare.h.

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

xMin_

template<typename T>

double fit::HistoChiSquare< T >::xMin_

private

Definition at line 57 of file HistoChiSquare.h.

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