APWeightSumEnsemble.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
 
 
#ifndef APWeightSumEnsemble_h
#define APWeightSumEnsemble_h
 
#include "APWeightSum.h"
#include <vector>
 
class TH1F;
class TVirtualFitter;
class APWeightEntry;
 
class APWeightSumEnsemble : public APWeightSum {
  
public:
  APWeightSumEnsemble();                                                         
  virtual ~APWeightSumEnsemble();                                                
  void SetRelPrecision(double rel_prec);                                         
  void AddWeightToEvt(APWeightEntry* weight);                                    
  void FinishEvt(double ext_weight = 1.0);                                       
  double GetQuantile(const double prob);                                         
  double GetRandom();                                                            
  double GetEnsemblePDFMode();                                                   
  double GetEnsemblePDFStdDev();                                                 
  TH1F *GetPDF();                                                                
  ClassDef(APWeightSumEnsemble,1)
 
private:
  void Compute();                                                                
  std::vector< std::vector< APWeightEntry* > > m_weight_vector;                   
  std::vector< APWeightEntry* > m_current_evt_pdfs;                               
  std::vector< double > m_ext_weights;                                            
  double m_rel_prec;                                                              
  TH1F *m_pdf;                                                                    
  double m_ensemble_mode;                                                         
  double m_ensemble_sigma;                                                        
  bool m_ensembleTest_done;                                                       
};
 
#endif