CMSSW_4_4_3_patch1/src/TopQuarkAnalysis/TopEventSelection/src/TtSemiLRSignalSelCalc.cc

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//
// Author:  Jan Heyninck
// Created: Tue Apr  3 17:33:23 PDT 2007
//
// $Id: TtSemiLRSignalSelCalc.cc,v 1.3 2008/02/17 11:18:10 rwolf Exp $
//
#include "TopQuarkAnalysis/TopEventSelection/interface/TtSemiLRSignalSelCalc.h"

// constructor with path; default should not be used
TtSemiLRSignalSelCalc::TtSemiLRSignalSelCalc(TString fitInputPath, std::vector<int> observables) 
{
  std::cout << "=== Constructing a TtSemiLRSignalSelCalc... " << std::endl; 
  myLR = new LRHelpFunctions();
  addPurity = false;
  if(observables[0] == -1) addPurity = true;
  myLR -> readObsHistsAndFits(fitInputPath, observables, addPurity);
  std::cout << "=== done." << std::endl; 
}

TtSemiLRSignalSelCalc::~TtSemiLRSignalSelCalc() 
{
  delete myLR;
}

void  TtSemiLRSignalSelCalc::operator()(TtSemiEvtSolution & sol)
{
  // find the used observables
  std::vector<double> obsVals;
  for(unsigned int o = 0; o<100; o++){
    if( myLR->obsFitIncluded(o) ) obsVals.push_back(sol.getLRSignalEvtObsVal(o)); 
  }
  
  // calculate the logLR and the purity
  double logLR = myLR->calcLRval(obsVals);
  double prob  = -999.;
  if(addPurity) prob = myLR->calcProb(logLR);
  
  // fill these values to the members in the TtSemiEvtSolution
  sol.setLRSignalEvtLRval(logLR);
  sol.setLRSignalEvtProb(prob);
}