/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_5/src/Validation/RecoEgamma/plugins/ConversionPostprocessing.cc

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#include <iostream>
//

#include "Validation/RecoEgamma/plugins/ConversionPostprocessing.h"

//

using namespace std;


ConversionPostprocessing::ConversionPostprocessing(const edm::ParameterSet& pset)
{

  dbe_ = 0;
  dbe_ = edm::Service<DQMStore>().operator->();
  dbe_->setVerbose(0);
  parameters_ = pset;


  standAlone_ = pset.getParameter<bool>("standAlone");
  batch_ = pset.getParameter<bool>("batch");
  outputFileName_ = pset.getParameter<string>("OutputFileName");
  inputFileName_  = pset.getParameter<std::string>("InputFileName");


  etMin = parameters_.getParameter<double>("etMin");
  etMax = parameters_.getParameter<double>("etMax");
  etBin = parameters_.getParameter<int>("etBin");

  etaMin = parameters_.getParameter<double>("etaMin");
  etaMax = parameters_.getParameter<double>("etaMax");
  etaBin = parameters_.getParameter<int>("etaBin");
  etaBin2 = parameters_.getParameter<int>("etaBin2");

  phiMin = parameters_.getParameter<double>("phiMin");
  phiMax = parameters_.getParameter<double>("phiMax");
  phiBin = parameters_.getParameter<int>("phiBin");

  rMin = parameters_.getParameter<double>("rMin");
  rMax = parameters_.getParameter<double>("rMax");
  rBin = parameters_.getParameter<int>("rBin");

  zMin = parameters_.getParameter<double>("zMin");
  zMax = parameters_.getParameter<double>("zMax");
  zBin = parameters_.getParameter<int>("zBin");



}



ConversionPostprocessing::~ConversionPostprocessing()
{}

void ConversionPostprocessing::beginJob()
{

}

void ConversionPostprocessing::analyze(const edm::Event& e, const edm::EventSetup& esup)
{}


void ConversionPostprocessing::endJob() {

if(standAlone_) runPostprocessing();

}

void ConversionPostprocessing::endRun(const edm::Run& run, const edm::EventSetup& setup) {

  if(!standAlone_) runPostprocessing();

}



void ConversionPostprocessing::runPostprocessing()
{



  std::string simInfoPathName = "EgammaV/ConversionValidator/SimulationInfo/";
  std::string convPathName    = "EgammaV/ConversionValidator/ConversionInfo/";
  std::string effPathName     = "EgammaV/ConversionValidator/EfficienciesAndFakeRate/";


  if(batch_)  dbe_->open(inputFileName_);

  dbe_->setCurrentFolder(effPathName);
  // Conversion reconstruction efficiency
  std::string histname = "convEffVsEtaTwoTracks";
  convEffEtaTwoTracks_ =  dbe_->book1D(histname,histname,etaBin2,etaMin, etaMax);

  histname = "convEffVsPhiTwoTracks";
  convEffPhiTwoTracks_ =  dbe_->book1D(histname,histname,phiBin,phiMin,phiMax);

  histname = "convEffVsRTwoTracks";
  convEffRTwoTracks_ =  dbe_->book1D(histname,histname,rBin,rMin, rMax);

  histname = "convEffVsZTwoTracks";
  convEffZTwoTracks_ =  dbe_->book1D(histname,histname,zBin,zMin,zMax);

  histname = "convEffVsEtTwoTracks";
  convEffEtTwoTracks_ =  dbe_->book1D(histname,histname,etBin,etMin, etMax);
  //
  histname = "convEffVsEtaTwoTracksAndVtxProbGT0";
  convEffEtaTwoTracksAndVtxProbGT0_ =  dbe_->book1D(histname,histname,etaBin2,etaMin, etaMax);
  histname = "convEffVsEtaTwoTracksAndVtxProbGT0005";
  convEffEtaTwoTracksAndVtxProbGT0005_ =  dbe_->book1D(histname,histname,etaBin2,etaMin, etaMax);
  histname = "convEffVsRTwoTracksAndVtxProbGT0";
  convEffRTwoTracksAndVtxProbGT0_ =  dbe_->book1D(histname,histname,rBin,rMin,rMax);
  histname = "convEffVsRTwoTracksAndVtxProbGT0005";
  convEffRTwoTracksAndVtxProbGT0005_ =  dbe_->book1D(histname,histname,rBin,rMin,rMax);
  //
  // Fake rate
  histname = "convFakeRateVsEtaTwoTracks";
  convFakeRateEtaTwoTracks_ =  dbe_->book1D(histname,histname,etaBin2,etaMin, etaMax);
  histname = "convFakeRateVsPhiTwoTracks";
  convFakeRatePhiTwoTracks_ =  dbe_->book1D(histname,histname,phiBin,phiMin,phiMax);
  histname = "convFakeRateVsRTwoTracks";
  convFakeRateRTwoTracks_ =  dbe_->book1D(histname,histname,rBin,rMin, rMax);
  histname = "convFakeRateVsZTwoTracks";
  convFakeRateZTwoTracks_ =  dbe_->book1D(histname,histname,zBin,zMin,zMax);
  histname = "convFakeRateVsEtTwoTracks";
  convFakeRateEtTwoTracks_ =  dbe_->book1D(histname,histname,etBin,etMin, etMax);

  // efficiencies
  dividePlots(dbe_->get(effPathName+"convEffVsEtaTwoTracks"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksEta"),dbe_->get(simInfoPathName+"h_VisSimConvEta"),"effic");
  dividePlots(dbe_->get(effPathName+"convEffVsPhiTwoTracks"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksPhi"),dbe_->get(simInfoPathName+"h_VisSimConvPhi"),"effic");
  dividePlots(dbe_->get(effPathName+"convEffVsRTwoTracks"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksR"),dbe_->get(simInfoPathName+"h_VisSimConvR"),"effic");
  dividePlots(dbe_->get(effPathName+"convEffVsZTwoTracks"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksZ"),dbe_->get(simInfoPathName+"h_VisSimConvZ"),"effic");
  dividePlots(dbe_->get(effPathName+"convEffVsEtTwoTracks"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksEt"),dbe_->get(simInfoPathName+"h_VisSimConvEt"),"effic");
  dividePlots(dbe_->get(effPathName+"convEffVsEtaTwoTracksAndVtxProbGT0"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksEtaAndVtxPGT0"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksEta"),"effic");
  dividePlots(dbe_->get(effPathName+"convEffVsEtaTwoTracksAndVtxProbGT0005"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksEtaAndVtxPGT0005"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksEta"),"effic");
  dividePlots(dbe_->get(effPathName+"convEffVsRTwoTracksAndVtxProbGT0"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksRAndVtxPGT0"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksR"),"effic");
  dividePlots(dbe_->get(effPathName+"convEffVsRTwoTracksAndVtxProbGT0005"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksRAndVtxPGT0005"),dbe_->get(simInfoPathName+"h_SimConvTwoMTracksR"),"effic");


  // fake rate
  dividePlots(dbe_->get(effPathName+"convFakeRateVsEtaTwoTracks"),dbe_->get(convPathName+"convEtaAss2"),dbe_->get(convPathName+"convEta2"),"fakerate");
  dividePlots(dbe_->get(effPathName+"convFakeRateVsPhiTwoTracks"),dbe_->get(convPathName+"convPhiAss"),dbe_->get(convPathName+"convPhi"),"fakerate");
  dividePlots(dbe_->get(effPathName+"convFakeRateVsRTwoTracks"),dbe_->get(convPathName+"convRAss"),dbe_->get(convPathName+"convR"),"fakerate");
  dividePlots(dbe_->get(effPathName+"convFakeRateVsZTwoTracks"),dbe_->get(convPathName+"convZAss"),dbe_->get(convPathName+"convZ"),"fakerate");
  dividePlots(dbe_->get(effPathName+"convFakeRateVsEtTwoTracks"),dbe_->get(convPathName+"convPtAss"),dbe_->get(convPathName+"convPt"),"fakerate");



  if(standAlone_) dbe_->save(outputFileName_);
  else if(batch_) dbe_->save(inputFileName_);
}


void ConversionPostprocessing::endLuminosityBlock(const edm::LuminosityBlock& lumi, const edm::EventSetup& setup)
{


}



void  ConversionPostprocessing::dividePlots(MonitorElement* dividend, MonitorElement* numerator, MonitorElement* denominator, std::string type ){
  double value,err;
  
  //quick fix to avoid seg. faults due to null pointers.
  if (dividend==0 || numerator==0 || denominator==0)return;

  for (int j=1; j<=numerator->getNbinsX(); j++){

    if (denominator->getBinContent(j)!=0){
      if (type=="effic")
        value = ((double) numerator->getBinContent(j))/((double) denominator->getBinContent(j));
      else if (type=="fakerate")
        value = 1-((double) numerator->getBinContent(j))/((double) denominator->getBinContent(j));
      else return;
      err = sqrt( value*(1-value) / ((double) denominator->getBinContent(j)) );
      dividend->setBinContent(j, value);
      if ( err !=0 ) dividend->setBinError(j,err);
    }
    else {
      dividend->setBinContent(j, 0);
      dividend->setBinError(j,0);
    }

  }


}


void  ConversionPostprocessing::dividePlots(MonitorElement* dividend, MonitorElement* numerator, double denominator){
  double value,err;

  //quick fix to avoid seg. faults due to null pointers.
  if (dividend==0 || numerator==0 )return;

  for (int j=1; j<=numerator->getNbinsX(); j++){
    if (denominator!=0){
      value = ((double) numerator->getBinContent(j))/denominator;
      err = sqrt( value*(1-value) / denominator);
      dividend->setBinContent(j, value);
      dividend->setBinError(j,err);
    }
    else {
      dividend->setBinContent(j, 0);
    }
  }

}