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#include <iostream>
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#include <fstream>
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#include "FWCore/MessageLogger/interface/MessageLogger.h"
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#include "DataFormats/METReco/interface/GenMET.h"
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#include "UserCode/HbbAnalysis/interface/HistosMET.hh"
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namespace HbbAnalysis {//namespace
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void HistosMET::FillEventHistograms(const edm::Handle<std::vector<pat::MET> > & aCol)
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{
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assert(aCol->size() == 1);
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const pat::MET & lMet = *(aCol->begin());
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p_MET->Fill(lMet.pt());
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p_MEx->Fill(lMet.px());
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p_MEy->Fill(lMet.py());
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p_SumET->Fill(lMet.sumEt());
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p_phi->Fill(lMet.phi());
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p_mEtSig->Fill(lMet.mEtSig());
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const reco::GenMET *lGenMET = lMet.genMET();
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if (lGenMET){
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p_genMET_MET->Fill(lGenMET->pt());
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p_genMET_MEx->Fill(lGenMET->px());
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p_genMET_MEy->Fill(lGenMET->py());
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p_genMET_SumET->Fill(lGenMET->sumEt());
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p_genMET_phi->Fill(lGenMET->phi());
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p_genMET_mEtSig->Fill(lGenMET->mEtSig());
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if (lGenMET->pt()) p_RecoOverGen_MET->Fill(lMet.pt()/lGenMET->pt());
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if (lGenMET->px()) p_RecoOverGen_MEx->Fill(lMet.px()/lGenMET->px());
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if (lGenMET->py()) p_RecoOverGen_MEy->Fill(lMet.py()/lGenMET->py());
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if (lGenMET->sumEt()) p_RecoOverGen_SumET->Fill(lMet.sumEt()/lGenMET->sumEt());
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}
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}
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}//namespace
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