/cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/ReweightUtils/ReweightUtils/APReweightND.h

#ifndef APReweightND_h
#define APReweightND_h

#include "APReweightBase.h"
#include <vector>
#include <map>

class TTree;
class THnSparse;
class TAxis;
class APWeightEntry;

class APReweightND : public APReweightBase {

public:
  APReweightND();                                                                
  APReweightND(THnSparse* denominator_in, THnSparse* numerator_in, bool isTrig = false); 
  virtual ~APReweightND();                                                       
  void ReadEfficiency(THnSparse* efficiency_in, THnSparse* err_low_in, THnSparse* err_high_in = 0); 
  APWeightEntry* GetBinWeight(const int bin[]);                                  
  APWeightEntry* GetWeight(double value[]);                                      
  double GetSampleScale() const;                                                 
  unsigned int NBins() const;                                                    
  THnSparse* GetDenominatorHist() const;                                         
  THnSparse* GetNumeratorHist() const;                                           
  void SetSystUncert(double rel_uncert);                                         
  void SetQuietMode(bool isQuiet = true);                                        
  //ClassDef(APReweightND, 1)

private:
  unsigned int _n_dim;                                                           
  THnSparse* _denominator_hist;                                                  
  THnSparse* _numerator_hist;                                                    
  std::map< std::vector<int> , APWeightEntry* > _weights;                        
  std::vector< TAxis* > _axes;                                                   
};

#endif

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