Binning.h

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2016 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Thomas Keck                                              *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
 
#pragma once
 
#ifndef INCLUDE_GUARD_BELLE2_MVA_BINNING_HEADER
#define INCLUDE_GUARD_BELLE2_MVA_BINNING_HEADER
 
#include <vector>
 
namespace Belle2 {
  namespace MVA {
 
    class Binning {
    public:
      explicit Binning(unsigned int nBins = 0);
 
      unsigned int getBin(float datapoint) const;
 
      void normalizePDFs();
 
      void calculateCDFsFromPDFs();
 
      double m_signal_yield; 
      double m_bckgrd_yield; 
      std::vector<float> m_signal_pdf; 
      std::vector<float> m_signal_cdf; 
      std::vector<float> m_bckgrd_pdf; 
      std::vector<float> m_bckgrd_cdf; 
      std::vector<float>
      m_boundaries; 
      static Binning CreateEqualFrequency(const std::vector<float>& data, const std::vector<float>& weights,
                                          const std::vector<bool>& isSignal, unsigned int nBins);
 
      static Binning CreateEquidistant(const std::vector<float>& data, const std::vector<float>& weights,
                                       const std::vector<bool>& isSignal, unsigned int nBins);
 
    };
 
  }
}
 
#endif