funct::RootHistoPdf Class Reference

#include <HistoPdf.h>

Inheritance diagram for funct::RootHistoPdf:

Public Member Functions
	RootHistoPdf (const TH1 &histo, double fMin, double fMax)
Public Member Functions inherited from funct::HistoPdf
void	dump ()
template<typename Iterator >
	HistoPdf (double xMin, double xMax, const Iterator &begin, const Iterator &end)
	HistoPdf ()
template<typename Iterator >
void	init (double xMin, double xMax, const Iterator &begin, const Iterator &end)
double	operator() (double x) const
void	rebin (unsigned int r)

Detailed Description

Definition at line 71 of file HistoPdf.h.

Constructor & Destructor Documentation

funct::RootHistoPdf::RootHistoPdf ( const TH1 &  histo, double  fMin, double  fMax  )

inlineexplicit

Definition at line 73 of file HistoPdf.h.

References i, funct::HistoPdf::init(), and x().

                                                                       {
      unsigned int nBins = histo.GetNbinsX();
      std::vector<double> y;      
      y.reserve(nBins);
      double xMin = histo.GetXaxis()->GetXmin();
      double xMax = histo.GetXaxis()->GetXmax();
      double deltaX =(xMax - xMin) / nBins;
      for(unsigned int i = 0; i != nBins; ++i) {
    double x = xMin + (i + .5) * deltaX;
    if(x > fMin && x < fMax) {
      y.push_back(histo.GetBinContent(i+1));
    }
      }
      init(fMin, fMax, y.begin(), y.end());
    }