/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_5/src/DQMOffline/RecoB/interface/FlavourHistorgrams2D.h

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#ifndef FlavourHistograms2D_H
#define FlavourHistograms2D_H

#include "DQMServices/Core/interface/DQMStore.h"
#include "DQMServices/Core/interface/MonitorElement.h"
#include "FWCore/ServiceRegistry/interface/Service.h" 

// #include "BTagPlotPrintC.h"

#include "TH2F.h"
#include "TProfile.h"
#include "TCanvas.h"
#include "TROOT.h"
#include "TSystem.h"
#include "TStyle.h"

#include "DQMOffline/RecoB/interface/Tools.h"
#include "DQMOffline/RecoB/interface/HistoProviderDQM.h"

#include <iostream>
#include <vector>
#include <string>
//class DQMStore;

//
// class to describe Histo
//
template <class T, class G>
class FlavourHistograms2D {

public:

  FlavourHistograms2D (TString baseNameTitle_ , TString baseNameDescription_ ,
                      int nBinsX_ , double lowerBoundX_ , double upperBoundX_ ,
                      int nBinsY_ , double lowerBoundY_ , double upperBoundY_ ,
                      bool statistics_ , bool update, std::string folder, unsigned int mc,
                      bool createProfile) ;

  virtual ~FlavourHistograms2D () ;


  // define arrays (if needed)
//   void defineArray ( int * dimension , int max , int indexToPlot ) ;
  
  // fill entry
  // For single variables and arrays (for arrays only a single index can be filled)
  void fill ( const int & flavour,  const T & variableX, const G & variableY) const;
  void fill ( const int & flavour,  const T & variableX, const G & variableY, const float & w) const;

  // For single variables and arrays
  void fill ( const int & flavour,  const T * variableX, const G * variableY) const;
  void fill ( const int & flavour,  const T * variableX, const G * variableY, const float & w) const;


  void settitle(const char* titleX, const char* titleY) ;
  
  // needed for efficiency computations -> this / b
  // (void : alternative would be not to overwrite the histos but to return a cloned HistoDescription)
  void divide ( const FlavourHistograms2D<T, G> & bHD ) const ;

  inline void SetMaximum(const double& max) { theMax = max;}
  inline void SetMinimum(const double& min) { theMin = min;}


  // trivial access functions
  inline std::string  baseNameTitle       () const { return theBaseNameTitle       ; }
  inline std::string  baseNameDescription () const { return theBaseNameDescription ; }
  inline int    nBinsX              () const { return theNBinsX              ; }
  inline int    nBinsY              () const { return theNBinsY              ; }
  inline double lowerBoundX         () const { return theLowerBoundX         ; } 
  inline double upperBoundX         () const { return theUpperBoundX         ; }
  inline double lowerBoundY         () const { return theLowerBoundY         ; } 
  inline double upperBoundY         () const { return theUpperBoundY         ; }
  inline bool   statistics          () const { return theStatistics          ; }

  // access to the histos
  inline TH2F * histo_all  () const { return theHisto_all->getTH2F()  ; }    
  inline TH2F * histo_d    () const { return theHisto_d ->getTH2F()   ; }    
  inline TH2F * histo_u    () const { return theHisto_u->getTH2F()    ; }
  inline TH2F * histo_s    () const { return theHisto_s->getTH2F()    ; }
  inline TH2F * histo_c    () const { return theHisto_c->getTH2F()    ; }
  inline TH2F * histo_b    () const { return theHisto_b->getTH2F()    ; }
  inline TH2F * histo_g    () const { return theHisto_g->getTH2F()    ; }
  inline TH2F * histo_ni   () const { return theHisto_ni->getTH2F()   ; }
  inline TH2F * histo_dus  () const { return theHisto_dus->getTH2F()  ; }
  inline TH2F * histo_dusg () const { return theHisto_dusg->getTH2F() ; }

  TProfile * profile_all  () const { return theProfile_all->getTProfile()  ; }    
  TProfile * profile_d    () const { return theProfile_d ->getTProfile()   ; }    
  TProfile * profile_u    () const { return theProfile_u->getTProfile()    ; }
  TProfile * profile_s    () const { return theProfile_s->getTProfile()    ; }
  TProfile * profile_c    () const { return theProfile_c->getTProfile()    ; }
  TProfile * profile_b    () const { return theProfile_b->getTProfile()    ; }
  TProfile * profile_g    () const { return theProfile_g->getTProfile()    ; }
  TProfile * profile_ni   () const { return theProfile_ni->getTProfile()   ; }
  TProfile * profile_dus  () const { return theProfile_dus->getTProfile()  ; }
  TProfile * profile_dusg () const { return theProfile_dusg->getTProfile() ; }

  std::vector<TH2F*> getHistoVector() const;

  std::vector<TProfile*> getProfileVector() const;

  

protected:

  void fillVariable ( const int & flavour , const T & varX , const G & varY , const float & w) const;
  
  //
  // the data members
  //
  
//   T *   theVariable   ;

  // for arrays
  int * theArrayDimension ;
  int   theMaxDimension ;
  int   theIndexToPlot ; // in case that not the complete array has to be plotted

  std::string  theBaseNameTitle ;
  std::string  theBaseNameDescription ;
  int    theNBinsX ;
  int    theNBinsY ;
  double theLowerBoundX ;
  double theUpperBoundX ;
  double theLowerBoundY ;
  double theUpperBoundY ;
  bool   theStatistics ;
  double theMin, theMax;

  // the histos
  MonitorElement *theHisto_all  ;    
  MonitorElement *theHisto_d    ;    
  MonitorElement *theHisto_u    ;
  MonitorElement *theHisto_s    ;
  MonitorElement *theHisto_c    ;
  MonitorElement *theHisto_b    ;
  MonitorElement *theHisto_g    ;
  MonitorElement *theHisto_ni   ;
  MonitorElement *theHisto_dus  ;
  MonitorElement *theHisto_dusg ;

  // the profiles
  MonitorElement *theProfile_all  ;    
  MonitorElement *theProfile_d    ;    
  MonitorElement *theProfile_u    ;
  MonitorElement *theProfile_s    ;
  MonitorElement *theProfile_c    ;
  MonitorElement *theProfile_b    ;
  MonitorElement *theProfile_g    ;
  MonitorElement *theProfile_ni   ;
  MonitorElement *theProfile_dus  ;
  MonitorElement *theProfile_dusg ;

  //  DQMStore * dqmStore_; 


  // the canvas to plot
  private:
  FlavourHistograms2D(){}

  unsigned int mcPlots_;
  bool createProfile_;

} ;



template <class T, class G>
FlavourHistograms2D<T, G>::FlavourHistograms2D (TString baseNameTitle_ , TString baseNameDescription_ ,
                                          int nBinsX_ , double lowerBoundX_ , double upperBoundX_ ,
                                          int nBinsY_ , double lowerBoundY_ , double upperBoundY_ ,
                                          bool statistics_ ,
                                          bool update, std::string folder, unsigned int mc, bool createProfile) :
  // BaseFlavourHistograms2D () ,
  // theVariable ( variable_ ) ,
  theMaxDimension(-1), theIndexToPlot(-1), theBaseNameTitle ( baseNameTitle_ ) , theBaseNameDescription ( baseNameDescription_ ) ,
  theNBinsX ( nBinsX_ ) , theNBinsY (nBinsY_), 
  theLowerBoundX ( lowerBoundX_ ) , theUpperBoundX ( upperBoundX_ ) ,
  theLowerBoundY ( lowerBoundY_ ) , theUpperBoundY ( upperBoundY_ ) ,
  theStatistics ( statistics_ ) , theMin(-1.), theMax(-1.), mcPlots_(mc), createProfile_(createProfile)
{
  // defaults for array dimensions
  theArrayDimension = 0  ;
    
  if (!update) {
    // book histos
    HistoProviderDQM prov("Btag",folder);
    if(mcPlots_%2 == 0) theHisto_all   = (prov.book2D( theBaseNameTitle + "ALL"  , theBaseNameDescription + " all jets"  , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY )) ; 
    else theHisto_all = 0;
    if (mcPlots_) {  
      if (mcPlots_>2) {
        theHisto_d     = (prov.book2D ( theBaseNameTitle + "D"    , theBaseNameDescription + " d-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY )) ; 
        theHisto_u     = (prov.book2D ( theBaseNameTitle + "U"    , theBaseNameDescription + " u-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
        theHisto_s     = (prov.book2D ( theBaseNameTitle + "S"    , theBaseNameDescription + " s-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
        theHisto_g     = (prov.book2D ( theBaseNameTitle + "G"    , theBaseNameDescription + " g-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
        theHisto_dus   = (prov.book2D ( theBaseNameTitle + "DUS"  , theBaseNameDescription + " dus-jets"  , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
      }
      else {
        theHisto_d = 0;
        theHisto_u = 0;
        theHisto_s = 0;
        theHisto_g = 0;
        theHisto_dus = 0;
      }
      theHisto_c     = (prov.book2D ( theBaseNameTitle + "C"    , theBaseNameDescription + " c-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
      theHisto_b     = (prov.book2D ( theBaseNameTitle + "B"    , theBaseNameDescription + " b-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
      theHisto_ni    = (prov.book2D ( theBaseNameTitle + "NI"   , theBaseNameDescription + " ni-jets"   , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
      theHisto_dusg  = (prov.book2D ( theBaseNameTitle + "DUSG" , theBaseNameDescription + " dusg-jets" , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ;
    }else{
      theHisto_d = 0;
      theHisto_u = 0;
      theHisto_s = 0;
      theHisto_c = 0;
      theHisto_b = 0;
      theHisto_g = 0;
      theHisto_ni = 0;
      theHisto_dus = 0;
      theHisto_dusg = 0;
    }

    if (createProfile_) {
      if(mcPlots_%2 == 0) theProfile_all = (prov.bookProfile( theBaseNameTitle + "_Profile_ALL" , theBaseNameDescription + " all jets" , theNBinsX, theLowerBoundX, theUpperBoundX, theNBinsY, theLowerBoundY, theUpperBoundY));
      else theProfile_all = 0;
      if (mcPlots_) {
        if (mcPlots_>2) {
          theProfile_d     = (prov.bookProfile ( theBaseNameTitle + "_Profile_D"    , theBaseNameDescription + " d-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY )) ; 
          theProfile_u     = (prov.bookProfile ( theBaseNameTitle + "_Profile_U"    , theBaseNameDescription + " u-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
          theProfile_s     = (prov.bookProfile ( theBaseNameTitle + "_Profile_S"    , theBaseNameDescription + " s-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
          theProfile_g     = (prov.bookProfile ( theBaseNameTitle + "_Profile_G"    , theBaseNameDescription + " g-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
          theProfile_dus   = (prov.bookProfile ( theBaseNameTitle + "_Profile_DUS"  , theBaseNameDescription + " dus-jets"  , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
        }
        else {
          theProfile_d = 0;
          theProfile_u = 0;
          theProfile_s = 0;
          theProfile_g = 0;
          theProfile_dus = 0;
        }
        theProfile_c     = (prov.bookProfile ( theBaseNameTitle + "_Profile_C"    , theBaseNameDescription + " c-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
        theProfile_b     = (prov.bookProfile ( theBaseNameTitle + "_Profile_B"    , theBaseNameDescription + " b-jets"    , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
        theProfile_ni    = (prov.bookProfile ( theBaseNameTitle + "_Profile_NI"   , theBaseNameDescription + " ni-jets"   , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ; 
        theProfile_dusg  = (prov.bookProfile ( theBaseNameTitle + "_Profile_DUSG" , theBaseNameDescription + " dusg-jets" , theNBinsX , theLowerBoundX , theUpperBoundX , theNBinsY, theLowerBoundY, theUpperBoundY)) ;
      } else{
          theProfile_d = 0;
          theProfile_u = 0;
          theProfile_s = 0;
          theProfile_c = 0;
          theProfile_b = 0;
          theProfile_g = 0;
          theProfile_ni = 0;
          theProfile_dus = 0;
          theProfile_dusg = 0;
      } 
    }  else {
          theProfile_all = 0;
          theProfile_d = 0;
          theProfile_u = 0;
          theProfile_s = 0;
          theProfile_c = 0;
          theProfile_b = 0;
          theProfile_g = 0;
          theProfile_ni = 0;
          theProfile_dus = 0;
          theProfile_dusg = 0;
    }
      // statistics if requested
    if ( theStatistics ) {
      if(theHisto_all) theHisto_all ->getTH2F()->Sumw2() ; 
      if(createProfile)
        if(theProfile_all) theProfile_all ->getTProfile()->Sumw2() ; 
      if (mcPlots_) {  
        if (mcPlots_>2) {
          theHisto_d   ->getTH2F()->Sumw2() ; 
          theHisto_u   ->getTH2F()->Sumw2() ; 
          theHisto_s   ->getTH2F()->Sumw2() ;
          theHisto_g   ->getTH2F()->Sumw2() ; 
          theHisto_dus ->getTH2F()->Sumw2() ; 
        } 
        theHisto_c   ->getTH2F()->Sumw2() ; 
        theHisto_b   ->getTH2F()->Sumw2() ; 
        theHisto_ni  ->getTH2F()->Sumw2() ; 
        theHisto_dusg->getTH2F()->Sumw2() ;

        if(createProfile) {
          if (mcPlots_>2) {
            theProfile_d   ->getTProfile()->Sumw2() ; 
            theProfile_u   ->getTProfile()->Sumw2() ; 
            theProfile_s   ->getTProfile()->Sumw2() ;
            theProfile_g   ->getTProfile()->Sumw2() ; 
            theProfile_dus ->getTProfile()->Sumw2() ; 
          } 
          theProfile_c   ->getTProfile()->Sumw2() ; 
          theProfile_b   ->getTProfile()->Sumw2() ; 
          theProfile_ni  ->getTProfile()->Sumw2() ; 
          theProfile_dusg->getTProfile()->Sumw2() ;
        }
      }
    }
  } else {
    HistoProviderDQM prov("Btag",folder);
    if(theHisto_all) theHisto_all   = prov.access(theBaseNameTitle + "ALL" ) ; 
    if (mcPlots_) {  
      if (mcPlots_>2) {
        theHisto_d     = prov.access(theBaseNameTitle + "D"   ) ; 
        theHisto_u     = prov.access(theBaseNameTitle + "U"   ) ; 
        theHisto_s     = prov.access(theBaseNameTitle + "S"   ) ;
        theHisto_g     = prov.access(theBaseNameTitle + "G"   ) ; 
        theHisto_dus   = prov.access(theBaseNameTitle + "DUS" ) ; 
      } 
      theHisto_c     = prov.access(theBaseNameTitle + "C"   ) ; 
      theHisto_b     = prov.access(theBaseNameTitle + "B"   ) ; 
      theHisto_ni    = prov.access(theBaseNameTitle + "NI"  ) ; 
      theHisto_dusg  = prov.access(theBaseNameTitle + "DUSG") ;
    }

    if(createProfile_) {
      if(theProfile_all) theProfile_all = prov.access(theBaseNameTitle + "_Profile_ALL");
      if(mcPlots_) {
        if (mcPlots_>2) {
          theProfile_d     = prov.access(theBaseNameTitle + "_Profile_D"   ) ; 
          theProfile_u     = prov.access(theBaseNameTitle + "_Profile_U"   ) ; 
          theProfile_s     = prov.access(theBaseNameTitle + "_Profile_S"   ) ;
          theProfile_g     = prov.access(theBaseNameTitle + "_Profile_G"   ) ; 
          theProfile_dus   = prov.access(theBaseNameTitle + "_Profile_DUS" ) ; 
        } 
        theProfile_c     = prov.access(theBaseNameTitle + "_Profile_C"   ) ; 
        theProfile_b     = prov.access(theBaseNameTitle + "_Profile_B"   ) ; 
        theProfile_ni    = prov.access(theBaseNameTitle + "_Profile_NI"  ) ; 
        theProfile_dusg  = prov.access(theBaseNameTitle + "_Profile_DUSG") ;
      }
    }
  }
}


template <class T, class G>
FlavourHistograms2D<T, G>::~FlavourHistograms2D () {}


// define arrays (if needed)
// template <class T, class G>
// void FlavourHistograms2D<T, G>::defineArray ( int * dimension , int max , int indexToPlot ) {
//   // indexToPlot < 0 if all to be plotted
//   theArrayDimension = dimension ;
//   theMaxDimension   = max ;
//   theIndexToPlot    = indexToPlot ;
// }
  
// fill entry
template <class T, class G> void
  FlavourHistograms2D<T, G>::fill ( const int & flavour,  const T & variableX, const G & variableY, const float & w) const 
{
  // For single variables and arrays (for arrays only a single index can be filled)
  fillVariable ( flavour , variableX , variableY , w ) ;
}

template <class T, class G> void
FlavourHistograms2D<T, G>::fill ( const int & flavour,  const T & variableX, const G & variableY) const 
{
  fill ( flavour , variableX , variableY , 1. ) ;
}

template <class T, class G> void
  FlavourHistograms2D<T, G>::fill ( const int & flavour,  const T * variableX, const G * variableY, const float & w) const
{
  if ( theArrayDimension == 0 ) {       
    // single variable
    fillVariable ( flavour , *variableX, *variableY , w) ;
  } else {
    // array      
    int iMax = *theArrayDimension ;
    if ( *theArrayDimension > theMaxDimension ) iMax = theMaxDimension ;
    //
    for ( int i = 0 ; i != iMax ; ++i ) {
      // check if only one index to be plotted (<0: switched off -> plot all)
      if ( ( theIndexToPlot < 0 ) || ( i == theIndexToPlot ) ) { 
        fillVariable ( flavour , *(variableX+i) , *(variableY+i) , w) ;
      }
    }

    // if single index to be filled but not enough entries: fill 0.0 (convention!)
    if ( theIndexToPlot >= iMax ) { 
      // cout << "==>> The index to be filled is too big -> fill 0.0 : " << theBaseNameTitle << " : " << theIndexToPlot << " >= " << iMax << endl ;
      const T& theZeroT = static_cast<T> ( 0.0) ;
      const G& theZeroG = static_cast<T> ( 0.0 );
      fillVariable ( flavour , theZeroT , theZeroG , w ) ;
    }
  }
} 

template <class T, class G> void
  FlavourHistograms2D<T, G>::fill ( const int & flavour,  const T * variableX, const G * variableY) const
{
  fill ( flavour,  variableX , variableY , 1. );
}

template <class T, class G>
void FlavourHistograms2D<T, G>::settitle(const char* titleX, const char* titleY) {
 if(theHisto_all) theHisto_all ->setAxisTitle(titleX) ;
 if(theHisto_all) theHisto_all ->setAxisTitle(titleY, 2) ;
    if (mcPlots_) {  
      
      if(theHisto_d)  theHisto_d   ->setAxisTitle(titleX) ;
      if(theHisto_u)  theHisto_u   ->setAxisTitle(titleX) ;
      if(theHisto_s)  theHisto_s   ->setAxisTitle(titleX) ;
      if(theHisto_c)  theHisto_c   ->setAxisTitle(titleX) ;
      if(theHisto_b)  theHisto_b   ->setAxisTitle(titleX) ;
      if(theHisto_g)  theHisto_g   ->setAxisTitle(titleX) ;
      if(theHisto_ni) theHisto_ni  ->setAxisTitle(titleX) ;
      if(theHisto_dus) theHisto_dus ->setAxisTitle(titleX) ;
      if(theHisto_dusg)theHisto_dusg->setAxisTitle(titleX) ;
      if(theHisto_d)  theHisto_d   ->setAxisTitle(titleY, 2) ;
      if(theHisto_u)  theHisto_u   ->setAxisTitle(titleY, 2) ;
      if(theHisto_s)  theHisto_s   ->setAxisTitle(titleY, 2) ;
      if(theHisto_c)  theHisto_c   ->setAxisTitle(titleY, 2) ;
      if(theHisto_b)  theHisto_b   ->setAxisTitle(titleY, 2) ;
      if(theHisto_g)  theHisto_g   ->setAxisTitle(titleY, 2) ;
      if(theHisto_ni) theHisto_ni  ->setAxisTitle(titleY, 2) ;
      if(theHisto_dus) theHisto_dus ->setAxisTitle(titleY, 2) ;
      if(theHisto_dusg)theHisto_dusg->setAxisTitle(titleY, 2) ;
    }

  if(createProfile_) {
    if(theProfile_all) theProfile_all ->setAxisTitle(titleX) ;
    if(theProfile_all) theProfile_all ->setAxisTitle(titleY, 2) ;
    if (mcPlots_) {  
      
      if(theProfile_d)  theProfile_d   ->setAxisTitle(titleX) ;
      if(theProfile_u)  theProfile_u   ->setAxisTitle(titleX) ;
      if(theProfile_s)  theProfile_s   ->setAxisTitle(titleX) ;
      if(theProfile_c)  theProfile_c   ->setAxisTitle(titleX) ;
      if(theProfile_b)  theProfile_b   ->setAxisTitle(titleX) ;
      if(theProfile_g)  theProfile_g   ->setAxisTitle(titleX) ;
      if(theProfile_ni) theProfile_ni  ->setAxisTitle(titleX) ;
      if(theProfile_dus) theProfile_dus ->setAxisTitle(titleX) ;
      if(theProfile_dusg)theProfile_dusg->setAxisTitle(titleX) ;
      if(theProfile_d)  theProfile_d   ->setAxisTitle(titleY, 2) ;
      if(theProfile_u)  theProfile_u   ->setAxisTitle(titleY, 2) ;
      if(theProfile_s)  theProfile_s   ->setAxisTitle(titleY, 2) ;
      if(theProfile_c)  theProfile_c   ->setAxisTitle(titleY, 2) ;
      if(theProfile_b)  theProfile_b   ->setAxisTitle(titleY, 2) ;
      if(theProfile_g)  theProfile_g   ->setAxisTitle(titleY, 2) ;
      if(theProfile_ni) theProfile_ni  ->setAxisTitle(titleY, 2) ;
      if(theProfile_dus) theProfile_dus ->setAxisTitle(titleY, 2) ;
      if(theProfile_dusg)theProfile_dusg->setAxisTitle(titleY, 2) ;
    }
  }
}

// needed for efficiency computations -> this / b
// (void : alternative would be not to overwrite the histos but to return a cloned HistoDescription)
template <class T, class G>
void FlavourHistograms2D<T, G>::divide ( const FlavourHistograms2D<T, G> & bHD ) const {
  // divide histos using binomial errors
  //
  // ATTENTION: It's the responsability of the user to make sure that the HistoDescriptions
  //            involved in this operation have been constructed with the statistics option switched on!!
  //
  if(theHisto_all) theHisto_all  ->getTH2F()-> Divide ( theHisto_all->getTH2F()  , bHD.histo_all () , 1.0 , 1.0 , "b" ) ;    
    if (mcPlots_) {  
      if (mcPlots_>2) {
        theHisto_d    ->getTH2F()-> Divide ( theHisto_d ->getTH2F()   , bHD.histo_d   () , 1.0 , 1.0 , "b" ) ;    
        theHisto_u    ->getTH2F()-> Divide ( theHisto_u ->getTH2F()   , bHD.histo_u   () , 1.0 , 1.0 , "b" ) ;
        theHisto_s    ->getTH2F()-> Divide ( theHisto_s ->getTH2F()   , bHD.histo_s   () , 1.0 , 1.0 , "b" ) ;
        theHisto_g    ->getTH2F()-> Divide ( theHisto_g  ->getTH2F()  , bHD.histo_g   () , 1.0 , 1.0 , "b" ) ;
        theHisto_dus  ->getTH2F()-> Divide ( theHisto_dus->getTH2F()  , bHD.histo_dus () , 1.0 , 1.0 , "b" ) ;
      }
      theHisto_c    ->getTH2F()-> Divide ( theHisto_c ->getTH2F()   , bHD.histo_c   () , 1.0 , 1.0 , "b" ) ;
      theHisto_b    ->getTH2F()-> Divide ( theHisto_b ->getTH2F()   , bHD.histo_b   () , 1.0 , 1.0 , "b" ) ;
      theHisto_ni   ->getTH2F()-> Divide ( theHisto_ni->getTH2F()   , bHD.histo_ni  () , 1.0 , 1.0 , "b" ) ;
      theHisto_dusg ->getTH2F()-> Divide ( theHisto_dusg->getTH2F() , bHD.histo_dusg() , 1.0 , 1.0 , "b" ) ;
    }
}
  

template <class T, class G>
  void FlavourHistograms2D<T, G>::fillVariable ( const int & flavour , const T & varX , const G & varY , const float & w) const {
  // all
  if(theHisto_all) theHisto_all->Fill ( varX, varY,w ) ;
  if(createProfile_)
    //if(theProfile_all) theProfile_all->Fill( varX, varY, w );
    if(theProfile_all) theProfile_all->Fill( varX, varY);

  //exit(-1);
  // flavour specific
  if (!mcPlots_) return;

  switch( flavour ) {
    case 1:
      if (mcPlots_>2) {
        theHisto_d->Fill( varX, varY,w );
        theHisto_dus->Fill( varX, varY,w );
      }
      theHisto_dusg->Fill( varX, varY,w );
      if(createProfile_) {
        //theProfile_d->Fill(varX, varY,w);
        //theProfile_dus->Fill(varX, varY,w);
        //theProfile_dusg->Fill(varX, varY,w);
        if (mcPlots_>2) {
          theProfile_d->Fill(varX, varY);
          theProfile_dus->Fill(varX, varY);
        }
        theProfile_dusg->Fill(varX, varY);
      }
      return;
    case 2:
      if (mcPlots_>2) {
        theHisto_u->Fill( varX, varY,w );
        theHisto_dus->Fill( varX, varY,w );
      }
      theHisto_dusg->Fill( varX, varY,w );
      if(createProfile_) {
        //theProfile_u->Fill(varX, varY,w);
        //theProfile_dus->Fill(varX, varY,w);
        //theProfile_dusg->Fill(varX, varY,w);
        if (mcPlots_>2) {
          theProfile_u->Fill(varX, varY);
          theProfile_dus->Fill(varX, varY);
        }
        theProfile_dusg->Fill(varX, varY);
      }
      return;
    case 3:
      if (mcPlots_>2) {
        theHisto_s->Fill( varX, varY,w );
        theHisto_dus->Fill( varX, varY,w );
      }
      theHisto_dusg->Fill( varX, varY,w );
      if(createProfile_) {
        //theProfile_s->Fill(varX, varY,w);
        //theProfile_dus->Fill(varX, varY,w);
        //theProfile_dusg->Fill(varX, varY,w);
        if (mcPlots_>2) {
          theProfile_s->Fill(varX, varY);
          theProfile_dus->Fill(varX, varY);
        }
        theProfile_dusg->Fill(varX, varY);
      }
      return;
    case 4:
      theHisto_c->Fill( varX, varY,w );
      //if(createProfile_) theProfile_c->Fill(varX, varY,w);
      if(createProfile_) theProfile_c->Fill(varX, varY);
      return;
    case 5:
      theHisto_b->Fill( varX, varY,w );
      //if(createProfile_) theProfile_b->Fill(varX, varY,w);
      if(createProfile_) theProfile_b->Fill(varX, varY);
      return;
    case 21:
      if (mcPlots_>2) theHisto_g->Fill( varX, varY,w );
      theHisto_dusg->Fill( varX, varY,w );
      if(createProfile_) {
        //theProfile_g->Fill(varX, varY,w);
        //theProfile_dusg->Fill(varX, varY,w);
        if (mcPlots_>2) theProfile_g->Fill(varX, varY);
        theProfile_dusg->Fill(varX, varY);
      }
      return;
    default:
      theHisto_ni->Fill( varX, varY,w );
      //if(createProfile_) theProfile_ni->Fill(varX, varY,w);
      if(createProfile_) theProfile_ni->Fill(varX, varY);
      return;
  }
}

template <class T, class G>
std::vector<TH2F*> FlavourHistograms2D<T, G>::getHistoVector() const
{
  std::vector<TH2F*> histoVector;
  if(theHisto_all) histoVector.push_back ( theHisto_all->getTH2F() );
    if (mcPlots_) {  
      if (mcPlots_>2) {
        histoVector.push_back ( theHisto_d->getTH2F()   );
        histoVector.push_back ( theHisto_u->getTH2F()   );
        histoVector.push_back ( theHisto_s->getTH2F()   );
        histoVector.push_back ( theHisto_g ->getTH2F()  );
        histoVector.push_back ( theHisto_dus->getTH2F() );
      }
      histoVector.push_back ( theHisto_c->getTH2F()   );
      histoVector.push_back ( theHisto_b->getTH2F()   );
      histoVector.push_back ( theHisto_ni->getTH2F()  );
      histoVector.push_back ( theHisto_dusg->getTH2F());
    }
  return histoVector;
}

template <class T, class G>
std::vector<TProfile*> FlavourHistograms2D<T, G>::getProfileVector() const
{
  std::vector<TProfile*> profileVector;
  if(createProfile_) {
    if(theProfile_all) profileVector.push_back ( theProfile_all->getTProfile() );
      if (mcPlots_) {  
        if (mcPlots_>2) {
          profileVector.push_back ( theProfile_d->getTProfile()   );
          profileVector.push_back ( theProfile_u->getTProfile()   );
          profileVector.push_back ( theProfile_s->getTProfile()   );
          profileVector.push_back ( theProfile_g ->getTProfile()  );
          profileVector.push_back ( theProfile_dus->getTProfile() );
        }
        profileVector.push_back ( theProfile_c->getTProfile()   );
        profileVector.push_back ( theProfile_b->getTProfile()   );
        profileVector.push_back ( theProfile_ni->getTProfile()  );
        profileVector.push_back ( theProfile_dusg->getTProfile());
      }
  }
  return profileVector;
}

#endif