kiesel/TreeWriter/treeWriter.cc

#include<iostream>
#include<math.h>

#include "TSystem.h"

#include "treeWriter.h"

using namespace std;

TreeWriter::TreeWriter(TString inputName, TString outputName) {
        // read the input file
        //TFile *inputFile = TFile::Open( inputName, "read" );
        inputTree = new TChain("susyTree");
        inputTree->Add( inputName );

        event = new susy::Event;
        inputTree->SetBranchAddress("susyEvent", &event);

        // open the output file
        outFile = new TFile( outputName, "recreate" );
        tree = new TTree("susyTree","Tree for single photon analysis");

        // set default parameter
        processNEvents = -1;
        reportEvery = 1000;
        loggingVerbosity = 0;
        skim = true;

}

TreeWriter::~TreeWriter() {
        if (!inputTree) return;
        delete inputTree->GetCurrentFile();
}

float TreeWriter::deltaR( TLorentzVector v1, TLorentzVector v2 ) {
        return sqrt(pow(v1.Eta() - v2.Eta(), 2) + pow(v1.Phi() - v2.Phi(), 2) );
}

float TreeWriter::getPtFromMatchedJet( susy::Photon myPhoton, susy::Event myEvent ) {
        /**
         * \brief Takes jet p_T as photon p_T
         *
         * At first all jets with DeltaR < 0.3 (isolation cone) are searched.
         * If several jets are found, take the one with the minimal pt difference
         * compared to the photon. If no such jets are found, keep the photon_pt
         * TODO: remove photon matched jet from jet-selection?
         */
        std::vector<susy::PFJet> nearJets;
        nearJets.clear();

        std::map<TString,susy::PFJetCollection>::iterator pfJets_it = myEvent.pfJets.find("ak5");
        if(pfJets_it == myEvent.pfJets.end()){
                if(myEvent.pfJets.size() > 0) std::cout << "JetCollection is not available!!!" << std::endl;
        } else {
                susy::PFJetCollection& jetColl = pfJets_it->second;
                for(std::vector<susy::PFJet>::iterator it = jetColl.begin();
                                it != jetColl.end(); it++) {
                        std::map<TString,Float_t>::iterator s_it = it->jecScaleFactors.find("L2L3");
                        if (s_it == it->jecScaleFactors.end()) {
                                std::cout << "JEC is not available for this jet!!!" << std::endl;
                                continue;
                        }
                        float scale = s_it->second;
                        TLorentzVector corrP4 = scale * it->momentum;
                        float deltaR_ = deltaR(myPhoton.momentum, corrP4 );
                        if (deltaR_ > 0.3) continue;
                        if( loggingVerbosity > 0 )
                                std::cout << "gamma pt jet matching factor = " << it->momentum.Et() / myPhoton.momentum.Et() << std::endl;
                        nearJets.push_back( *it );
                }// for jet
        }// if, else

        if ( nearJets.size() == 0 ) {
                //std::cout << "No jet with deltaR < .3 found, do not change photon_pt" << std::endl;
                return myPhoton.momentum.Et();
        }

        float pt = 0;
        float minPtDifferenz = 1E20; // should be very high
        for( std::vector<susy::PFJet>::iterator it = nearJets.begin(), jetEnd = nearJets.end();
                        it != jetEnd; it++ ) {
                float ptDiff = fabs(myPhoton.momentum.Et() - it->momentum.Et());
                if (  ptDiff < minPtDifferenz ) {
                        minPtDifferenz = ptDiff;
                        pt = it->momentum.Et();
                }
        }

        // testing
        if( nearJets.size() > 1 )
                std::cout << "There are several jets matching to this photon. "
                                        << "Please check if the upper assumtion is reasonable" << std::endl;
        return pt;
}


void TreeWriter::Loop() {

        // here the event loop is implemented and the tree is filled
        if (inputTree == 0) return;

        // get number of events to be proceeded
        Long64_t nentries = inputTree->GetEntries();
        if(processNEvents <= 0 || processNEvents > nentries) processNEvents = nentries;

        if( loggingVerbosity > 0 )
                std::cout << "Processing " << processNEvents << " ouf of "
                        << nentries << " events. " << std::endl;

        tree::Photon *thisphoton = new tree::Photon();
        tree::Jet *thisjet = new tree::Jet();

        tree->Branch("photon", &photon);
        tree->Branch("jet", &jet);
        tree->Branch("met", &met, "met/F");
        tree->Branch("ht", &ht, "ht/F");
        tree->Branch("nVertex", &nVertex, "nVertex/I");
        tree->Branch("nElectron", &nElectron, "nElectron/I");


        for (long jentry=0; jentry < processNEvents; jentry++) {
                if ( loggingVerbosity>0 && jentry%reportEvery==0 )
                        std::cout << jentry << " / " << processNEvents << std :: endl;
                inputTree->GetEntry(jentry);

                photon.clear();
                jet.clear();
                ht = 0;

                // photons
                if( loggingVerbosity > 1 )
                        std::cout << std::endl << "Process photons" << std::endl;
                std::map<TString, std::vector<susy::Photon> >::iterator phoMap = event->photons.find("photons");
                for(std::vector<susy::Photon>::iterator it = phoMap->second.begin();
                                it != phoMap->second.end() && phoMap != event->photons.end(); it++ ) {
                        if( ! it->isEB() && skim )
                                continue;
                        thisphoton->pt = getPtFromMatchedJet( *it, *event );
                        if( thisphoton->pt < 80 && skim )
                                continue;
                        thisphoton->eta = it->momentum.Eta();
                        thisphoton->phi = it->momentum.Phi();
                        thisphoton->chargedIso = it->chargedHadronIso;
                        thisphoton->neutralIso = it->neutralHadronIso;
                        thisphoton->photonIso = it->photonIso;
                        if ( it->r9 > 1 && skim ) // if == 1 ?
                                continue;
                        thisphoton->r9 = it->r9;
                        thisphoton->sigmaIetaIeta = it->sigmaIetaIeta;
                        thisphoton->hadTowOverEm = it->hadTowOverEm;
                        thisphoton->pixelseed = it->nPixelSeeds;
                        photon.push_back( *thisphoton );
                        ht += thisphoton->pt;
                        if( loggingVerbosity > 2 )
                                std::cout << " photonpt = " << thisphoton->pt << std::endl;
                }

                if( photon.size() == 0 && skim )
                        continue;
                std::sort( photon.begin(), photon.end(), tree::EtGreater);
                if( loggingVerbosity > 1 )
                        std::cout << "Found " << photon.size() << " photons" << std::endl;

                // jets
                std::map<TString,susy::PFJetCollection>::iterator pfJets_it = event->pfJets.find("ak5");
                if(pfJets_it == event->pfJets.end()){
                        if(event->pfJets.size() > 0) std::cout << "JetCollection is not available!!!" << std::endl;
                } else {

                        susy::PFJetCollection& jetColl = pfJets_it->second;

                        for(std::vector<susy::PFJet>::iterator it = jetColl.begin();
                                        it != jetColl.end(); it++) {
                                std::map<TString,Float_t>::iterator s_it = it->jecScaleFactors.find("L2L3");
                                if (s_it == it->jecScaleFactors.end()) {
                                        std::cout << "JEC is not available for this jet!!!" << std::endl;
                                        continue;
                                }
                                float scale = s_it->second;
                                TLorentzVector corrP4 = scale * it->momentum;

                                if(std::abs(corrP4.Eta()) > 3.0 && skim ) continue;
                                thisjet->pt = corrP4.Et();
                                thisjet->eta = corrP4.Eta();
                                thisjet->phi = corrP4.Phi();
                                jet.push_back( *thisjet );
                                ht += thisjet->pt;
                        }// for jet
                }// if, else
                if( jet.size() < 2 && skim )
                        continue;
                std::sort( jet.begin(), jet.end(), tree::EtGreater);

                // met
                std::map<TString, susy::MET>::iterator met_it = event->metMap.find("pfMet");
                susy::MET* metobj = &(met_it->second);
                met = metobj->met();

                // electrons
                //std::vector<susy::Electron> eVector = event->electrons["gsfElectrons"];
                //nElectron = eVector.size();

                // vertices

                nVertex = event->vertices.size();

                if( ht < 450 && skim)
                        continue;

                tree->Fill();
        } // for jentry


        tree->Write();
        outFile->cd();
        outFile->Write();
        outFile->Close();
}

Revision:	1.5
Committed:	Tue Apr 9 07:28:02 2013 UTC (12 years ago) by kiesel
Content type:	text/plain
Branch:	MAIN
Changes since 1.4:	+36 -64 lines
Log Message:	Working with root macro now, not with executable
#	User	Rev	Content
1	kiesel	1.2	#include<iostream>
2	kiesel	1.4	#include<math.h>
3	kiesel	1.2
4	kiesel	1.5	#include "TSystem.h"
5
6			#include "treeWriter.h"
7
8			using namespace std;
9	kiesel	1.1
10			TreeWriter::TreeWriter(TString inputName, TString outputName) {
11			// read the input file
12	kiesel	1.5	//TFile *inputFile = TFile::Open( inputName, "read" );
13			inputTree = new TChain("susyTree");
14			inputTree->Add( inputName );
15
16	kiesel	1.1	event = new susy::Event;
17			inputTree->SetBranchAddress("susyEvent", &event);
18
19			// open the output file
20			outFile = new TFile( outputName, "recreate" );
21			tree = new TTree("susyTree","Tree for single photon analysis");
22
23			// set default parameter
24			processNEvents = -1;
25			reportEvery = 1000;
26			loggingVerbosity = 0;
27	kiesel	1.5	skim = true;
28	kiesel	1.1
29			}
30
31			TreeWriter::~TreeWriter() {
32			if (!inputTree) return;
33			delete inputTree->GetCurrentFile();
34			}
35
36	kiesel	1.4	float TreeWriter::deltaR( TLorentzVector v1, TLorentzVector v2 ) {
37			return sqrt(pow(v1.Eta() - v2.Eta(), 2) + pow(v1.Phi() - v2.Phi(), 2) );
38			}
39
40	kiesel	1.5	float TreeWriter::getPtFromMatchedJet( susy::Photon myPhoton, susy::Event myEvent ) {
41	kiesel	1.4	/**
42			* \brief Takes jet p_T as photon p_T
43			*
44			* At first all jets with DeltaR < 0.3 (isolation cone) are searched.
45			* If several jets are found, take the one with the minimal pt difference
46	kiesel	1.5	* compared to the photon. If no such jets are found, keep the photon_pt
47	kiesel	1.4	* TODO: remove photon matched jet from jet-selection?
48			*/
49			std::vector<susy::PFJet> nearJets;
50			nearJets.clear();
51
52	kiesel	1.5	std::map<TString,susy::PFJetCollection>::iterator pfJets_it = myEvent.pfJets.find("ak5");
53			if(pfJets_it == myEvent.pfJets.end()){
54			if(myEvent.pfJets.size() > 0) std::cout << "JetCollection is not available!!!" << std::endl;
55	kiesel	1.4	} else {
56			susy::PFJetCollection& jetColl = pfJets_it->second;
57			for(std::vector<susy::PFJet>::iterator it = jetColl.begin();
58			it != jetColl.end(); it++) {
59			std::map<TString,Float_t>::iterator s_it = it->jecScaleFactors.find("L2L3");
60			if (s_it == it->jecScaleFactors.end()) {
61			std::cout << "JEC is not available for this jet!!!" << std::endl;
62			continue;
63			}
64			float scale = s_it->second;
65			TLorentzVector corrP4 = scale * it->momentum;
66	kiesel	1.5	float deltaR_ = deltaR(myPhoton.momentum, corrP4 );
67	kiesel	1.4	if (deltaR_ > 0.3) continue;
68	kiesel	1.5	if( loggingVerbosity > 0 )
69			std::cout << "gamma pt jet matching factor = " << it->momentum.Et() / myPhoton.momentum.Et() << std::endl;
70	kiesel	1.4	nearJets.push_back( *it );
71			}// for jet
72			}// if, else
73
74			if ( nearJets.size() == 0 ) {
75	kiesel	1.5	//std::cout << "No jet with deltaR < .3 found, do not change photon_pt" << std::endl;
76			return myPhoton.momentum.Et();
77	kiesel	1.4	}
78
79			float pt = 0;
80			float minPtDifferenz = 1E20; // should be very high
81			for( std::vector<susy::PFJet>::iterator it = nearJets.begin(), jetEnd = nearJets.end();
82			it != jetEnd; it++ ) {
83	kiesel	1.5	float ptDiff = fabs(myPhoton.momentum.Et() - it->momentum.Et());
84	kiesel	1.4	if ( ptDiff < minPtDifferenz ) {
85			minPtDifferenz = ptDiff;
86			pt = it->momentum.Et();
87			}
88			}
89
90			// testing
91			if( nearJets.size() > 1 )
92			std::cout << "There are several jets matching to this photon. "
93			<< "Please check if the upper assumtion is reasonable" << std::endl;
94			return pt;
95			}
96
97
98	kiesel	1.1	void TreeWriter::Loop() {
99	kiesel	1.4
100	kiesel	1.1	// here the event loop is implemented and the tree is filled
101			if (inputTree == 0) return;
102
103			// get number of events to be proceeded
104			Long64_t nentries = inputTree->GetEntries();
105			if(processNEvents <= 0 \|\| processNEvents > nentries) processNEvents = nentries;
106
107			if( loggingVerbosity > 0 )
108			std::cout << "Processing " << processNEvents << " ouf of "
109			<< nentries << " events. " << std::endl;
110
111			tree::Photon *thisphoton = new tree::Photon();
112			tree::Jet *thisjet = new tree::Jet();
113
114			tree->Branch("photon", &photon);
115			tree->Branch("jet", &jet);
116			tree->Branch("met", &met, "met/F");
117	kiesel	1.5	tree->Branch("ht", &ht, "ht/F");
118	kiesel	1.1	tree->Branch("nVertex", &nVertex, "nVertex/I");
119	kiesel	1.4	tree->Branch("nElectron", &nElectron, "nElectron/I");
120	kiesel	1.1
121
122			for (long jentry=0; jentry < processNEvents; jentry++) {
123	kiesel	1.4	if ( loggingVerbosity>0 && jentry%reportEvery==0 )
124	kiesel	1.1	std::cout << jentry << " / " << processNEvents << std :: endl;
125			inputTree->GetEntry(jentry);
126
127			photon.clear();
128			jet.clear();
129	kiesel	1.5	ht = 0;
130	kiesel	1.1
131			// photons
132	kiesel	1.5	if( loggingVerbosity > 1 )
133			std::cout << std::endl << "Process photons" << std::endl;
134	kiesel	1.1	std::map<TString, std::vector<susy::Photon> >::iterator phoMap = event->photons.find("photons");
135			for(std::vector<susy::Photon>::iterator it = phoMap->second.begin();
136			it != phoMap->second.end() && phoMap != event->photons.end(); it++ ) {
137	kiesel	1.4	if( ! it->isEB() && skim )
138	kiesel	1.1	continue;
139	kiesel	1.4	thisphoton->pt = getPtFromMatchedJet( it, event );
140			if( thisphoton->pt < 80 && skim )
141	kiesel	1.1	continue;
142			thisphoton->eta = it->momentum.Eta();
143	kiesel	1.4	thisphoton->phi = it->momentum.Phi();
144	kiesel	1.1	thisphoton->chargedIso = it->chargedHadronIso;
145			thisphoton->neutralIso = it->neutralHadronIso;
146			thisphoton->photonIso = it->photonIso;
147	kiesel	1.4	if ( it->r9 > 1 && skim ) // if == 1 ?
148	kiesel	1.1	continue;
149			thisphoton->r9 = it->r9;
150			thisphoton->sigmaIetaIeta = it->sigmaIetaIeta;
151			thisphoton->hadTowOverEm = it->hadTowOverEm;
152			thisphoton->pixelseed = it->nPixelSeeds;
153			photon.push_back( *thisphoton );
154	kiesel	1.5	ht += thisphoton->pt;
155			if( loggingVerbosity > 2 )
156			std::cout << " photonpt = " << thisphoton->pt << std::endl;
157	kiesel	1.1	}
158	kiesel	1.5
159	kiesel	1.4	if( photon.size() == 0 && skim )
160	kiesel	1.1	continue;
161			std::sort( photon.begin(), photon.end(), tree::EtGreater);
162	kiesel	1.5	if( loggingVerbosity > 1 )
163			std::cout << "Found " << photon.size() << " photons" << std::endl;
164	kiesel	1.1
165			// jets
166			std::map<TString,susy::PFJetCollection>::iterator pfJets_it = event->pfJets.find("ak5");
167			if(pfJets_it == event->pfJets.end()){
168			if(event->pfJets.size() > 0) std::cout << "JetCollection is not available!!!" << std::endl;
169			} else {
170
171			susy::PFJetCollection& jetColl = pfJets_it->second;
172
173			for(std::vector<susy::PFJet>::iterator it = jetColl.begin();
174			it != jetColl.end(); it++) {
175			std::map<TString,Float_t>::iterator s_it = it->jecScaleFactors.find("L2L3");
176			if (s_it == it->jecScaleFactors.end()) {
177			std::cout << "JEC is not available for this jet!!!" << std::endl;
178			continue;
179			}
180			float scale = s_it->second;
181			TLorentzVector corrP4 = scale * it->momentum;
182
183	kiesel	1.4	if(std::abs(corrP4.Eta()) > 3.0 && skim ) continue;
184	kiesel	1.1	thisjet->pt = corrP4.Et();
185			thisjet->eta = corrP4.Eta();
186	kiesel	1.4	thisjet->phi = corrP4.Phi();
187	kiesel	1.1	jet.push_back( *thisjet );
188	kiesel	1.5	ht += thisjet->pt;
189	kiesel	1.1	}// for jet
190			}// if, else
191	kiesel	1.4	if( jet.size() < 2 && skim )
192			continue;
193			std::sort( jet.begin(), jet.end(), tree::EtGreater);
194	kiesel	1.1
195			// met
196			std::map<TString, susy::MET>::iterator met_it = event->metMap.find("pfMet");
197			susy::MET* metobj = &(met_it->second);
198			met = metobj->met();
199
200	kiesel	1.4	// electrons
201	kiesel	1.5	//std::vector<susy::Electron> eVector = event->electrons["gsfElectrons"];
202			//nElectron = eVector.size();
203	kiesel	1.4
204	kiesel	1.1	// vertices
205
206			nVertex = event->vertices.size();
207
208	kiesel	1.5	if( ht < 450 && skim)
209			continue;
210	kiesel	1.4
211	kiesel	1.1	tree->Fill();
212			} // for jentry
213
214
215
216			tree->Write();
217			outFile->cd();
218			outFile->Write();
219			outFile->Close();
220			}
221	kiesel	1.3