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root/cvsroot/UserCode/MitHzz4l/Selection/src/applySelection.cc

Comparing UserCode/MitHzz4l/Selection/src/applySelection.cc (file contents):
Revision 1.8 by khahn, Fri Oct 14 11:20:25 2011 UTC vs.
Revision 1.15 by khahn, Sun May 6 23:51:01 2012 UTC

#	Line 4 | Line 4
4		#include <vector>                   // STL vector class
5		#include <iostream>                 // standard I/O
6		#include <iomanip>                  // functions to format standard I/O
7	<	#include <fstream>                  // functions for file I/O
8	<	#include <string>                   // C++ string class
9	<	#include <sstream>                  // class for parsing strings
10	<	#include <assert.h>
11	<	#include <stdlib.h>
12	<	#include <getopt.h>
7	>	#include <bitset>
8		using namespace std;
9
10		//
11	<	// ROOT headers
11	>	// root headers
12		//
13	<	#include <TROOT.h>                  // access to gROOT, entry point to ROOT system
14	<	#include <TSystem.h>                // interface to OS
15	<	#include <TFile.h>                  // file handle class
16	<	#include <TNtuple.h>
17	<	#include <TTree.h>                  // class to access ntuples
18	<	#include <TChain.h>                 //
19	<	#include <TBranch.h>                // class to access branches in TTree
20	<	#include <TClonesArray.h>           // ROOT array class
21	<	#include <TCanvas.h>                // class for drawing
22	<	#include <TH1F.h>                   // 1D histograms
23	<	#include <TBenchmark.h>             // class to track macro running statistics
24	<	#include <TLorentzVector.h>         // 4-vector class
25	<	#include <TVector3.h>               // 3D vector class
13	>	#include <TFile.h>
14	>	#include <TTree.h>
15	>	#include <TChain.h>
16	>	#include <TBranch.h>
17	>	#include <TClonesArray.h>
18	>
19	>
20	>	//
21	>	// TMVA
22	>	//
23	>	#include "TMVA/Reader.h"
24	>	#include "TMVA/Tools.h"
25	>	#include "TMVA/Config.h"
26	>	#include "TMVA/MethodBDT.h"
27
28		//
29		// ntuple format headers
30		//
31	<	#include "HiggsAnaDefs.hh"
32	<	#include "TEventInfo.hh"
33	<	#include "TElectron.hh"
34	<	#include "TMuon.hh"
35	<	#include "TJet.hh"
36	<	#include "SiMVAElectronSelection.h"
37	<	#include "RunLumiRangeMap.h"
31	>	#include "EventHeader.h"
32	>	#include "Electron.h"
33	>	#include "Muon.h"
34	>	#include "Vertex.h"
35	>	#include "PFCandidate.h"
36	>	#include "PFCandidateCol.h"
37	>	#include "TriggerMask.h"
38	>	#include "TriggerTable.h"
39	>	#include "Names.h"
40	>	#include "BaseMod.h"
41
42		//
43	<	// utility headers
43	>	// our headers
44		//
45		#include "ParseArgs.h"
46	+	#include "MuonSelection.h"
47	+	#include "ElectronSelection.h"
48	+	#include "IsolationSelection.h"
49	+
50	+	//#include "Selection.h"
51	+	#include "ReferenceSelection.h"
52	+
53	+	#include "TriggerUtils.h"
54	+	#include "PassHLT.h"
55	+	#include "Angles.h"
56	+	#include "KinematicsStruct.h"
57	+	#include "InfoStruct.h"
58	+	//#include "GenInfoStruct.h"
59	+	#include "WeightStruct.h"
60	+	#include "GlobalDataAndFuncs.h"
61	+
62	+	#include "AngleTuple.h"
63	+	#include "FOTuple.h"
64	+
65		#include "SampleWeight.h"
66	<	#include "Selection.h"
67	<	#include "HZZCiCElectronSelection.h"
68	<	#include "HZZLikelihoodElectronSelection.h"
69	<	#include "HZZBDTElectronSelection.h"
70	<	#include "SampleWeight.h"
66	>	#include "EfficiencyWeightsInterface.h"
67	>
68	>	#ifndef CMSSW_BASE
69	>	#define CMSSW_BASE "../"
70	>	#endif
71	>
72	>	using namespace mithep;
73
74	<	//#define BDTFAIL_THEIR_EVENTS
75	<	//#define THEIR_EVENTS
74	>	#include "SimpleLepton.h"
75	>	vector<SimpleLepton> failedLeptons; // for fake estimation
76	>
77	>	//----------------------------------------------------------------------------
78	>	bool setPV(ControlFlags,const mithep::Array<mithep::Vertex>*, mithep::Vertex& );
79	>	//----------------------------------------------------------------------------
80
81		//=== MAIN =================================================================================================
82		int main(int argc, char** argv)
83		{
84	<
84	>	string cmsswpath(CMSSW_BASE);
85	>	cmsswpath.append("/src");
86	>	std::bitset<1024> triggerBits;
87		vector<vector<string> > inputFiles;
88		inputFiles.push_back(vector<string>());
89	+	map<string,double> entrymap; // number of unskimmed entries in each file
90
91		//
92		// args
93		//--------------------------------------------------------------------------------------------------------------
94		ControlFlags ctrl;
95		parse_args( argc, argv, ctrl );
96	<	if( ctrl.inputfile.empty() ||
97	<	ctrl.inputfile.empty() ) {
98	<	cerr << "usage: applySelection.exe <flags> " << endl;
99	<	cerr << "\tmandoatory flags : " << endl;
100	<	cerr << "\t--inputfile |  file containing a list of ntuples to run over" << endl;
101	<	cerr << "\t--outputfile | file to store  selected evet" << endl;
102	<	return 1;
103	<	}
96	>	if( ctrl.inputfiles.empty() &&ctrl.inputfile.empty() )
97	>	{
98	>	cerr << "usage: applySelection.exe <flags> " << endl;
99	>	cerr << "\tmandoatory flags : " << endl;
100	>	cerr << "\t--inputfiles |  file containing a list of ntuples to run over" << endl;
101	>	cerr << "\t--inputfile |  a file to run over" << endl;
102	>	cerr << "\t--outputfile | file to store  selected evet" << endl;
103	>	return 1;
104	>	}
105		ctrl.dump();
106
107	<	map<string,double> entrymap; // number of unskimmed entries in each file
107	>
108
109		//
110		// File I/O
111		//--------------------------------------------------------------------------------------------------------------
112		TChain * chain = new TChain("Events");
113	<	ifstream f(ctrl.inputfile.c_str());
113	>	TChain * hltchain = new TChain("HLT");
114	>
115		string fname;
116	<	while (f >> fname) {
117	<	if( !(strncmp( fname.c_str(), "#", 1 ) ) ) continue; // skip commented lines
118	<	cout << "adding inputfile : " << fname.c_str() << endl;
119	<	entrymap[string(fname.c_str())] = unskimmedEntries(fname.c_str());
120	<	chain->AddFile(fname.c_str());
116	>	if( !ctrl.inputfiles.empty() ) {
117	>	ifstream f(ctrl.inputfiles.c_str());
118	>	while (f >> fname) {
119	>	if( !(strncmp( fname.c_str(), "#", 1 ) ) ) continue; // skip commented lines
120	>	cout << "adding inputfile : " << fname.c_str() << endl;
121	>	entrymap[string(fname.c_str())] = unskimmedEntries(fname.c_str());
122	>	chain->AddFile(fname.c_str());
123	>	hltchain->AddFile(fname.c_str());
124	>	}
125	>	} else {
126	>	cout << "adding inputfile : " << ctrl.inputfile.c_str() << endl;
127	>	entrymap[string(ctrl.inputfile.c_str())] = unskimmedEntries(ctrl.inputfile.c_str());
128	>	chain->AddFile(ctrl.inputfile.c_str());
129	>	hltchain->AddFile(ctrl.inputfile.c_str());
130		}
131
132	+	const char * ofname;
133	+	if( strcmp( ctrl.outputfile.c_str(), "") ) {
134	+	ofname = ctrl.outputfile.c_str();
135	+	} else {
136	+	ofname = "tmp.root";
137	+	}
138		// table of cross section values
139	<	SimpleTable xstab("./data/xs.dat");
139	>	string xspath = (cmsswpath+string("/MitPhysics/data/xs.dat"));
140	>	cout << "xspath: " << xspath.c_str() << endl;
141	>	SimpleTable xstab(xspath.c_str());
142	>
143
144		//
145		// Setup
146		//--------------------------------------------------------------------------------------------------------------
147	<	TH1F * h_evt = new TH1F("hevt", "hevt", 2, 0, 2 );
148	<	TH1F * h_evtfail = new TH1F("hevtfail", "hevtfail", 1024, 0, 1024 );
149	<	//  TNtuple * passtuple = new TNtuple( "passtuple", "passtuple", "run:evt:lumi:channel:mZ1:mZ2:m4l:pt4l:w" );
150	<	TTree * passtuple = new TTree("passtuple", "passtuple" );
151	<	unsigned run, evt, lumi, channel;
105	<	float mZ1, mZ2, m4l, pt4l;
106	<	double w;
107	<	passtuple->Branch("run", &run);
108	<	passtuple->Branch("evt", &evt);
109	<	passtuple->Branch("lumi", &lumi);
110	<	passtuple->Branch("mZ1", &mZ1);
111	<	passtuple->Branch("mZ2", &mZ2);
112	<	passtuple->Branch("m4l", &m4l);
113	<	passtuple->Branch("pt4l", &pt4l);
114	<	passtuple->Branch("w", &w);
115	<	initCiCSelection();
116	<	if(ctrl.eleSele=="lik") initLikSelection();
117	<	if(ctrl.eleSele=="bdt") initBDTSelection();
118	<	if(ctrl.eleSele=="si" ) initSiMVAElectronSelection();
119	<	initRunLumiRangeMap();
147	>	Angles angles;
148	>	KinematicsStruct kinematics;
149	>	InfoStruct evtinfo;
150	>	WeightStruct weights;
151	>	//  GenInfoStruct geninfo;
152
153	<	//
154	<	// Loop
155	<	//--------------------------------------------------------------------------------------------------------------
153	>
154	>	AngleTuple nt( (const char*)ofname, (const char*)"zznt");
155	>	nt.makeAngleBranch(angles);
156	>	nt.makeKinematicsBranch(kinematics);
157	>	nt.makeInfoBranch(evtinfo);
158	>	FOTuple foTree( nt.getFile(), (const char*)"fo");
159	>	foTree.makeSimpleLeptonBranch(failedLeptons);
160	>
161	>	TH1F * h_w_hpt;
162	>	if(ctrl.mc) {
163	>	nt.makeWeightBranch(weights);
164	>	//    nt.makeGenInfoBranch(geninfo);
165	>	initEfficiencyWeights();
166	>	/*
167	>	// Higgs only, pt reweighting
168	>	if( ctrl.mH <= 140 ) {
169	>	char wptname[256];
170	>	sprintf( wptname, "/data/blue/pharris/Flat/ntupler/root/weight_ptH_%i.root", ctrl.mH );
171	>	TFile * f_hpt = new TFile(wptname);
172	>	f_hpt->Print();
173	>	sprintf(wptname, "weight_hqt_fehipro_fit_%i", ctrl.mH);
174	>	h_w_hpt  = (TH1F*)(f_hpt->FindObjectAny(wptname));
175	>	h_w_hpt->Print();
176	>	}
177	>	*/
178	>	} else {
179	>	initRunLumiRangeMap();
180	>	}
181	>
182	>	//  initMuonIDMVA();
183	>	initMuonIsoMVA();
184	>	initElectronIDMVA();
185	>	initElectronIsoMVA();
186	>	initTrigger();
187	>
188	>
189	>
190	>	//##########################################################################
191	>	// Setup tree I/O
192	>	//##########################################################################
193
194		//
195		// Access samples and fill histograms
196		TFile *inputFile=0;
197		TTree *eventTree=0;
198	<
130	<	// Data structures to store info from TTrees
131	<	mithep::TEventInfo *info    = new mithep::TEventInfo();
132	<	TClonesArray *electronArr   = new TClonesArray("mithep::TElectron");
133	<	TClonesArray *muonArr       = new TClonesArray("mithep::TMuon");
134	<
135	<
136	<	TBranch *infoBr;
137	<	TBranch *electronBr;
138	<	TBranch *muonBr;
139	<
140	<	//   chain->SetBranchStatus("*",0); //disable all branches
141	<	//   chain->SetBranchStatus("Info", 1);
142	<	//   chain->SetBranchStatus("Muon", 1);
143	<	//   chain->SetBranchStatus("Electron", 1);
144	<
145	<	chain->SetBranchAddress("Info",       &info);
146	<	chain->SetBranchAddress("Electron", &electronArr);
147	<	chain->SetBranchAddress("Muon", &muonArr);
148	<
149	<
150	<
151	<	cout << "nEntries: " << chain->GetEntries() << endl;
152	<	for(UInt_t ientry=0; ientry<chain->GetEntries(); ientry++) {
153	<
154	<	chain->GetEntry(ientry);
155	<	if(!(ientry%100000)) cout << "entry: " << ientry << endl;
156	<
157	<	// get event weight for this file
158	<	double eventweight=1;
159	<	if(ctrl.mc) eventweight = getWeight(xstab,entrymap,chain);
160	<
161	<	#ifdef THEIR_EVENTS
162	<	if( !( info->evtNum == 504867308  ||
163	<	info->evtNum == 368148849  ||
164	<	info->evtNum == 129514273  ||
165	<	info->evtNum == 286336207  ||
166	<	info->evtNum == 344708580  ||
167	<	info->evtNum == 30998576   ||
168	<	info->evtNum == 155679852  ||
169	<	info->evtNum == 394010457  ||
170	<	info->evtNum == 917379387  ||
171	<	info->evtNum == 78213037   ||
172	<	info->evtNum == 337493970  ||
173	<	info->evtNum == 1491724484 ||
174	<	info->evtNum == 480301165  ||
175	<	info->evtNum == 1038911933 ||
176	<	info->evtNum == 876658967  ||
177	<	info->evtNum == 966824024  ||
178	<	info->evtNum == 141954801  ||
179	<	info->evtNum == 160966858  ||
180	<	info->evtNum == 191231387  ||
181	<	info->evtNum == 66033190   ||
182	<	info->evtNum == 10347106   ||
183	<	info->evtNum == 107360878  ) ) continue;
184	<	#endif
185	<
186	<
187	<	#ifdef BDTFAIL_THEIR_EVENTS
188	<	if( !( info->evtNum == 78213037   ||
189	<	info->evtNum == 876658967  ) ) continue;
190	<
191	<	#endif
192	<
193	<	unsigned evtfail = fails_HZZ4L_selection(ctrl, info, electronArr, muonArr, eventweight, passtuple);
194	<	h_evtfail->Fill( evtfail, eventweight );
195	<
196	<
197	<	} //end loop over data
198	<
199	<
200	<
201	<	delete info;
202	<	delete electronArr;
203	<	delete muonArr;
204	<
205	<
206	<
207	<	//--------------------------------------------------------------------------------------------------------------
208	<	// Save Histograms;
209	<	//==============================================================================================================
210	<	const char * ofname;
211	<	if( strcmp( ctrl.outputfile.c_str(), "") ) {
212	<	ofname = ctrl.outputfile.c_str();
213	<	} else {
214	<	ofname = "tmp.root";
215	<	}
198	>	string currentFile("");
199
200	<	TFile *file = new TFile(ofname, "RECREATE");
201	<	h_evt->Write();
202	<	h_evtfail->Write();
203	<	passtuple->Write();
204	<	file->Close();
205	<	delete file;
206	<
207	<	// map<TString,TMVA::Reader*>::iterator it;
208	<	// for(it=readers.begin(); it!=readers.end(); it++) delete (*it).second;
200	>	// Data structures to store info from TTrees
201	>	mithep::EventHeader *info    = new mithep::EventHeader();
202	>	//  mithep::TGenInfo    *ginfo  = new mithep::TGenInfo();
203	>	mithep::Array<mithep::Electron>             *electronArr   = new mithep::Array<mithep::Electron>();
204	>	mithep::Array<mithep::Muon>                 *muonArr       = new mithep::Array<mithep::Muon>();
205	>	mithep::Array<mithep::Vertex>               *vtxArr        = new mithep::Array<mithep::Vertex>();
206	>	mithep::Array<mithep::PFCandidate>          *pfArr         = new mithep::Array<mithep::PFCandidate>();
207	>	mithep::Array<mithep::PileupEnergyDensity>  *puArr         = new mithep::Array<mithep::PileupEnergyDensity>();
208	>	mithep::Array<mithep::Track>                *trkArr        = new mithep::Array<mithep::Track>();
209	>	mithep::TriggerMask                         *trigMask      = new mithep::TriggerMask();
210	>	mithep::TriggerTable                        *hltTable      = new mithep::TriggerTable();
211	>	vector<string>                              *hltTableStrings  = new vector<string>();
212	>
213	>	TString fElectronName(Names::gkElectronBrn);
214	>	TString fMuonName(Names::gkMuonBrn);
215	>	TString fInfoName(Names::gkEvtHeaderBrn);
216	>	TString fPrimVtxName(Names::gkPVBrn);
217	>	TString fPFCandidateName(Names::gkPFCandidatesBrn);
218	>	TString fPileupEnergyDensityName(Names::gkPileupEnergyDensityBrn);
219	>	TString fTrackName(Names::gkTrackBrn);
220	>	TString fTriggerMaskName(Names::gkHltBitBrn);
221	>	TString fTriggerTableName(Names::gkHltTableBrn);
222	>
223	>	chain->SetBranchAddress(fInfoName,        &info);
224	>	chain->SetBranchAddress(fElectronName,    &electronArr);
225	>	chain->SetBranchAddress(fMuonName,        &muonArr);
226	>	chain->SetBranchAddress(fPrimVtxName,     &vtxArr);
227	>	chain->SetBranchAddress(fPFCandidateName, &pfArr);
228	>	chain->SetBranchAddress(fPileupEnergyDensityName, &puArr);
229	>	chain->SetBranchAddress(fTrackName, &trkArr);
230	>	chain->SetBranchAddress(fTriggerMaskName, &trigMask);
231	>	cout << "hlttable: " << fTriggerTableName << endl;
232	>	hltchain->SetBranchAddress(fTriggerTableName, &hltTableStrings);
233	>
234	>	mithep::Vertex              vtx;          // best primary vertex in the event
235	>
236	>	//  ginfo = NULL;
237	>	// if( ctrl.mc ) { chain->SetBranchAddress("Gen",        &ginfo);}
238	>
239	>	int count=0, pass=0;
240	>	float passcorr=0., passcorr_errup=0., passcorr_errdown=0.;
241	>	float denom[3]={0.,0.,0.};
242	>	float numer[3]={0.,0.,0.};
243	>	float numercorr[3]={0.,0.,0.};
244	>
245	>	// only 1 HLT table / file ???
246	>	hltchain->GetEntry(0);
247	>	cerr << "here... " << endl;
248	>
249	>	int imax = chain->GetEntries();
250	>	cout << "nEntries: " << imax << endl;
251	>
252	>
253	>	//##########################################################################
254	>	// Loop !!!!!!!!! should alternate events here and +1 in the training ...
255	>	//##########################################################################
256	>	for(UInt_t ientry=0; ientry<imax; ientry++)
257	>	{
258	>	chain->GetEntry(ientry);
259	>	if(!(ientry%1000)) cerr << "entry: " << ientry << endl;
260	>
261	>	setPV( ctrl, vtxArr, vtx);
262	>
263	>	if(ctrl.mc) {
264	>	weights.w = getWeight(xstab,entrymap,chain);
265	>	} else {
266	>	if( string(chain->GetFile()->GetEndpointUrl()->GetFile()) != currentFile ) {
267	>	currentFile = string(chain->GetFile()->GetEndpointUrl()->GetFile());
268	>	hltchain->SetBranchAddress(fTriggerTableName, &hltTableStrings);
269	>	hltchain->GetEntry(0);
270	>	hltTable->Clear();
271	>	fillTriggerBits(hltTable, hltTableStrings );
272	>	}
273	>	if( ctrl.debug ) cout << "file is : " << currentFile  << endl;
274	>	fillTriggerBits( hltTable, trigMask, triggerBits );
275	>	}
276	>
277	>
278	>	//
279	>	// trigger
280	>	//
281	>	if( !ctrl.mc ) {
282	>	if( !passHLT(triggerBits, info->RunNum(), info->EvtNum() ) ) {
283	>	if( ctrl.debug ) cout << "\tfails trigger ... " << endl;
284	>	continue;
285	>	}
286	>	}
287	>
288	>	//
289	>	// lepton/kinematic selection ...
290	>	//
291	>	EventData ret4l =
292	>	apply_HZZ4L_reference_selection(ctrl, info,
293	>	vtx,
294	>	pfArr,
295	>	puArr,
296	>	electronArr,
297	>	&electronReferencePreSelection,
298	>	&electronReferenceIDMVASelection,
299	>	&electronReferenceIsoSelection,
300	>	muonArr,
301	>	&muonReferencePreSelection,
302	>	&muonIDPFSelection,
303	>	&muonReferenceIsoSelection);
304	>	/*
305	>	apply_HZZ4L_reference_selection(ctrl, info,
306	>	vtx,
307	>	pfArr,
308	>	puArr,
309	>	electronArr,
310	>	&electronPreSelection,
311	>	&electronIDMVASelection,
312	>	&electronIsoMVASelection,
313	>	muonArr,
314	>	&muonPreSelection,
315	>	&muonIDPFSelection,
316	>	&muonIsoMVASelection);
317	>	*/
318	>
319	>	if( ctrl.debug ) cout << endl;
320	>
321	>	cout << "bits: " << ret4l.status.selectionBits << endl;
322	>
323	>	if( ret4l.status.pass() ) {
324	>
325	>	fillAngles(ret4l,angles);
326	>	fillKinematics(ret4l,kinematics);
327	>	fillEventInfo(info,evtinfo);
328	>	//if(ctrl.mc) fillGenInfo(ginfo,geninfo);
329	>
330	>	/*
331	>	// only for Higgs < 140
332	>	geninfo.weight *= h_w_hpt->GetBinContent(h_w_hpt->FindBin(geninfo.pt_zz));
333	>	angles.bdt = reader->EvaluateMVA("BDTG");
334	>	*/
335	>	nt.Fill();
336	>
337	>	cerr  << "PASS:: "
338	>	<< "\trun: " << evtinfo.run
339	>	<< "\tevt: " << evtinfo.evt
340	>	<< "\tlumi: " << evtinfo.lumi
341	>	<< "\tcostheta1: " << angles.costheta1
342	>	<< "\tcostheta2: " << angles.costheta2
343	>	<< "\tcostheta*: " << angles.costhetastar
344	>	<< "\tbdt: " << angles.bdt
345	>	<< endl;
346	>	pass++;
347	>	//      if( pass > 3 ) break;
348	>
349	>	} else if( ret4l.status.selectionBits.test(8) ) { // save for fakes ...
350	>	cout << "failedLeptons : " << failedLeptons.size() << endl;
351	>	for( int f=0; f<failedLeptons.size(); f++ ) {
352	>	cout << "f: " << f << "\t"
353	>	<< "type: " << failedLeptons[f].type << "\t"
354	>	<< "pT: " << failedLeptons[f].vec->Pt()
355	>	<< endl;
356	>	}
357	>	cout << endl;
358	>	//      foTree.Fill();
359	>	//      break;
360	>	}
361	>	}
362
363	<	cerr << "done!" << endl;
363	>	//  foTree.getTree()->Write();
364	>	nt.WriteClose();
365		}
366
367	<
368	<
367	>	//----------------------------------------------------------------------------
368	>	//
369	>	// Get primary vertices
370	>	// Assumes primary vertices are ordered by sum-pT^2 (as should be in CMSSW)
371	>	// NOTE: if no PV is found from fitting tracks, the beamspot is used
372	>	//
373	>	//----------------------------------------------------------------------------
374	>	bool setPV(ControlFlags ctrl,
375	>	const mithep::Array<mithep::Vertex> * vtxArr,
376	>	mithep::Vertex & vtx)
377	>	//----------------------------------------------------------------------------
378	>	{
379	>	const Vertex *bestPV = 0;
380	>	float best_sumpt=-1;
381	>
382	>	// good PV requirements
383	>	const UInt_t   fMinNTracksFit = 0;
384	>	const Double_t fMinNdof       = 4;
385	>	const Double_t fMaxAbsZ       = 24;
386	>	const Double_t fMaxRho        = 2;
387	>
388	>	for(int i=0; i<vtxArr->GetEntries(); ++i) {
389	>	const Vertex *pv = (Vertex*)(vtxArr->At(i));
390	>	if( ctrl.debug ) cout << "vertex :: " << i << "\tntrks: " << pv->NTracks() << endl;
391	>
392	>	// Select best PV for corrected d0; if no PV passing cuts, the first PV in the collection will be used
393	>	//  if(!pv->IsValid()) continue;
394	>	if(pv->NTracksFit()       < fMinNTracksFit)       continue;
395	>	if(pv->Ndof()                 < fMinNdof)         continue;
396	>	if(fabs(pv->Z()) > fMaxAbsZ)                      continue;
397	>	if(pv->Position().Rho()   > fMaxRho)              continue;
398	>
399	>	// take the first ...
400	>	bestPV = pv;
401	>	break;
402	>
403	>	// this never reached ...
404	>	float tmp_sumpt=0;
405	>	for( int t=0; t<pv->NTracks(); t++ )
406	>	tmp_sumpt += pv->Trk(t)->Pt();
407	>
408	>	if( tmp_sumpt > best_sumpt  ) {
409	>	bestPV = pv;
410	>	best_sumpt = tmp_sumpt;
411	>	if( ctrl.debug) cout << "new PV set, pt : " << best_sumpt << endl;
412	>	}
413	>	}
414	>
415	>	if(!bestPV) bestPV = vtxArr->At(0);
416	>	vtx.SetPosition(bestPV->X(),bestPV->Y(),bestPV->Z());
417	>	vtx.SetErrors(bestPV->XErr(),bestPV->YErr(),bestPV->ZErr());
418	>	return true;
419	>	};

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