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khahn |
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#include "bdtiface.h"
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bdtiface::bdtiface(TString weightDir, TString cutfile)
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{
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binnamev.push_back("s0_pt0");
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binnamev.push_back("s0_pt1");
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binnamev.push_back("s1_pt0");
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binnamev.push_back("s1_pt1");
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binnamev.push_back("s2_pt0");
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binnamev.push_back("s2_pt1");
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for(UInt_t i=0; i<binnamev.size(); i++) {
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readers[binnamev[i]] = new TMVA::Reader( "!Color:!Silent" );
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}
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map<TString,TMVA::Reader*>::iterator it;
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for(it=readers.begin(); it!=readers.end(); it++) {
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(*it).second->AddVariable( "SigmaIEtaIEta", &bdtvarEleSigmaIEtaIEta );
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(*it).second->AddVariable( "DEtaIn", &bdtvarEleDEtaIn );
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(*it).second->AddVariable( "DPhiIn", &bdtvarEleDPhiIn );
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(*it).second->AddVariable( "D0", &bdtvarEleD0 );
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(*it).second->AddVariable( "FBrem", &bdtvarEleFBrem );
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(*it).second->AddVariable( "EOverP", &bdtvarEleEOverP );
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(*it).second->AddVariable( "ESeedClusterOverPout", &bdtvarEleESeedClusterOverPout );
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(*it).second->AddVariable( "SigmaIPhiIPhi", &bdtvarEleSigmaIPhiIPhi );
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(*it).second->AddVariable( "NBrem", &bdtvarEleNBrem );
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(*it).second->AddVariable( "OneOverEMinusOneOverP", &bdtvarEleOneOverEMinusOneOverP );
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(*it).second->AddVariable( "ESeedClusterOverPIn", &bdtvarEleESeedClusterOverPIn );
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(*it).second->AddSpectator("IP3d", &bdtvarEleIP3d);
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(*it).second->AddSpectator("IP3dSig", &bdtvarEleIP3dSig);
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(*it).second->AddSpectator("StandardLikelihood", &bdtvarStandardLikelihood);
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(*it).second->AddSpectator("CicPass", &bdtvarCicPass);
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(*it).second->AddSpectator("pt", &bdtvarPt);
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(*it).second->AddSpectator("eta", &bdtvarEta);
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(*it).second->AddSpectator("sceta", &bdtvarSCeta);
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(*it).second->AddSpectator("pfiso", &bdtvarPFIso);
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(*it).second->AddSpectator("isconv", &bdtvarIsConv);
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(*it).second->AddSpectator("ptweight", &bdtvarWeight);
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(*it).second->AddSpectator("nexphits", &bdtvarNExpHits);
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(*it).second->BookMVA("BDTG",weightDir+"/vN_"+(*it).first+"_BDTG.weights.xml");
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}
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readBDTCuts(cutfile);
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}
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//----------------------------------------------------------------------------------------
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TString bdtiface::getBinName(double pt, double sceta)
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{
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//classify by eta and pt bins
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TString subdet;
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if(fabs(sceta) < 1) subdet = "0";
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else if (fabs(sceta) < 1.479) subdet = "1";
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else subdet = "2";
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TString ptBin("0");
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if(pt > 20) ptBin = "1";
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return "s" + subdet + "_pt" + ptBin;
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}
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//----------------------------------------------------------------------------------------
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void bdtiface::readBDTCuts(TString file)
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{
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// get bdt cut values from file
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ifstream ifs;
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ifs.open(file.Data());
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assert(ifs.is_open());
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string line;
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while(getline(ifs,line)) {
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stringstream ss(line);
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string binname;
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Double_t loosecut,mediumcut,tightcut;
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ss >> binname >> loosecut >> mediumcut >> tightcut;
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loosecuts[binname] = loosecut;
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mediumcuts[binname] = mediumcut;
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tightcuts[binname] = tightcut;
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}
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}
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//----------------------------------------------------------------------------------------
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double bdtiface::getBDTCut(double pt, double sceta, TString tightness)
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{
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TString binname = getBinName(pt,sceta);
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if(tightness=="loose") return loosecuts[binname];
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else if(tightness=="medium") return mediumcuts[binname];
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else if(tightness=="tight") return tightcuts[binname];
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else {cout << "error! bad tightness" << endl; assert(0); return -1;}
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}
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//----------------------------------------------------------------------------------------
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Bool_t bdtiface::passBDT(Double_t pt, Double_t eta, TString tightness)
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{
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double bdtcut = getBDTCut(pt,eta,tightness);
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TMVA::Reader *reader = readers[getBinName(pt,eta)];
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double bdtval = reader->EvaluateMVA("BDTG");
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// cout << "new bdt val: " << bdtval << " new bdt cut: " << bdtcut << endl;
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return bdtval > bdtcut;
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}
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