[ViewVC] Diff of: cvsroot/UserCode/MitHzz4l/Selection/src/applySelection.cc

Comparing UserCode/MitHzz4l/Selection/src/applySelection.cc (file contents):
Revision 1.13 by khahn, Sat May 5 11:04:01 2012 UTC vs.
Revision 1.21 by khahn, Sat May 12 03:00:15 2012 UTC

#	Line 5 \| Line 5
5		#include <iostream> // standard I/O
6		#include <iomanip> // functions to format standard I/O
7		#include <bitset>
8	+	#include <map>
9		using namespace std;
10
11		//
#	Line 34 \| Line 35 \| using namespace std;
35		#include "Vertex.h"
36		#include "PFCandidate.h"
37		#include "PFCandidateCol.h"
38	+	#include "PileupInfoCol.h"
39	+	#include "PileupEnergyDensity.h"
40		#include "TriggerMask.h"
41		#include "TriggerTable.h"
42		#include "Names.h"
#	Line 46 \| Line 49 \| using namespace std;
49		#include "MuonSelection.h"
50		#include "ElectronSelection.h"
51		#include "IsolationSelection.h"
52	<	#include "Selection.h"
52	>
53	>	//#include "Selection.h"
54	>	//#include "ReferenceSelection.h"
55	>	#include "ReferenceSelection2.h"
56	>
57		#include "TriggerUtils.h"
58		#include "PassHLT.h"
59		#include "Angles.h"
#	Line 54 \| Line 61 \| using namespace std;
61		#include "InfoStruct.h"
62		//#include "GenInfoStruct.h"
63		#include "WeightStruct.h"
64	<	#include "GlobalDataAndFuncs.h"
64	>	//#include "GlobalDataAndFuncs.h"
65	>	#include "RunLumiRangeMap.h"
66	>
67		#include "AngleTuple.h"
68	+	#include "FOTuple.h"
69
70		#include "SampleWeight.h"
71		#include "EfficiencyWeightsInterface.h"
72
73	+	#include "SimpleLepton.h"
74	+
75		#ifndef CMSSW_BASE
76		#define CMSSW_BASE "../"
77		#endif
78
79		using namespace mithep;
80
81	+	//
82	+	// globals
83	+	//----------------------------------------------------------------------------
84	+	TH1D * hpu;
85	+	RunLumiRangeMap rlrm;
86	+	vector<SimpleLepton> failingLeptons ; // for fake estimation
87	+	vector<SimpleLepton> passingLeptons; // for fake estimation
88	+	vector<unsigned> cutvec;
89	+	vector<vector<unsigned> > zcutvec;
90	+	vector<vector<unsigned> > zzcutvec;
91	+	map<unsigned,float> evtrhoMap;
92	+	vector<string> cutstrs;
93	+	bool passes_HLT_MC;
94
95	+	//
96	+	// prototypes
97		//----------------------------------------------------------------------------
98		bool setPV(ControlFlags,const mithep::Array<mithep::Vertex>*, mithep::Vertex& );
99	+	void initPUWeights();
100	+	double getPUWeight(unsigned npu);
101	+	void setEffiencyWeights(EventData&, WeightStruct& );
102	+	void initRunLumiRangeMap();
103	+	void initEvtRhoMap(map<unsigned,float> &);
104		//----------------------------------------------------------------------------
105
106	<	//=== MAIN =================================================================================================
106	>
107	>	//
108	>	// MAIN
109	>	//----------------------------------------------------------------------------
110		int main(int argc, char** argv)
111	+	//----------------------------------------------------------------------------
112		{
113	+	cutstrs.push_back(string("skim0")); //0
114	+	cutstrs.push_back(string("skim1")); //1
115	+	cutstrs.push_back(string("trigger")); //2
116	+	// -------------------------------------------------
117	+	cutstrs.push_back(string("Z candidate")); //3
118	+	cutstrs.push_back(string("good Z1")); //4
119	+	// -------------------------------------------------
120	+	cutstrs.push_back(string("4l")); //5
121	+	cutstrs.push_back(string("ZZ candidate")); //6
122	+	cutstrs.push_back(string("good Z2")); //7
123	+	cutstrs.push_back(string("ZZ 20/10")); //8
124	+	cutstrs.push_back(string("resonance")); //9
125	+	cutstrs.push_back(string("m4l>70")); //10
126	+	cutstrs.push_back(string("m4l>100")); //11
127	+
128	+
129	+
130	+
131		string cmsswpath(CMSSW_BASE);
132		cmsswpath.append("/src");
133		std::bitset<1024> triggerBits;
134		vector<vector<string> > inputFiles;
135		inputFiles.push_back(vector<string>());
136	<	map<string,double> entrymap; // number of unskimmed entries in each file
136	>	map<string,unsigned> entrymap; // number of unskimmed entries in each file
137	>	for( int i=0; i<cutstrs.size(); i++ ) cutvec.push_back(0);
138	>	for( int i=0; i<2; i++ ) {
139	>	zcutvec.push_back(vector<unsigned>());
140	>	for( int j=0; j<cutstrs.size(); j++ ) zcutvec[i].push_back(0);
141	>	}
142	>	for( int i=0; i<3; i++ ) {
143	>	zzcutvec.push_back(vector<unsigned>());
144	>	for( int j=0; j<cutstrs.size(); j++ ) zzcutvec[i].push_back(0);
145	>	}
146	>
147
148		//
149		// args
#	Line 96 \| Line 160 \| int main(int argc, char argv)**
160		return 1;
161		}
162		ctrl.dump();
99	–	assert( ctrl.mH != 0 );
163
164
165
#	Line 113 \| Line 176 \| int main(int argc, char argv)**
176		if( !(strncmp( fname.c_str(), "#", 1 ) ) ) continue; // skip commented lines
177		cout << "adding inputfile : " << fname.c_str() << endl;
178		entrymap[string(fname.c_str())] = unskimmedEntries(fname.c_str());
179	+	cout << "unskimmed entries: " << entrymap[string(fname.c_str())] << endl;
180		chain->AddFile(fname.c_str());
181		hltchain->AddFile(fname.c_str());
182		}
183		} else {
184		cout << "adding inputfile : " << ctrl.inputfile.c_str() << endl;
185	+	unsigned tmpent = unskimmedEntries(ctrl.inputfile.c_str());
186	+	cout << "tmpent: " << tmpent << endl;
187		entrymap[string(ctrl.inputfile.c_str())] = unskimmedEntries(ctrl.inputfile.c_str());
188	+	cout << "unskimmed entries: " << entrymap[string(ctrl.inputfile.c_str())] << endl;
189		chain->AddFile(ctrl.inputfile.c_str());
190		hltchain->AddFile(ctrl.inputfile.c_str());
191		}
#	Line 149 \| Line 216 \| int main(int argc, char argv)**
216		nt.makeKinematicsBranch(kinematics);
217		nt.makeInfoBranch(evtinfo);
218
219	+	FOTuple foTree( nt.getFile(), (const char*)"FOtree");
220	+	foTree.makeFailedLeptonBranch(failingLeptons);
221	+	foTree.makeZLeptonBranch(passingLeptons);
222	+
223		TH1F * h_w_hpt;
224		if(ctrl.mc) {
225		nt.makeWeightBranch(weights);
226		// nt.makeGenInfoBranch(geninfo);
227		initEfficiencyWeights();
228	+	initPUWeights();
229		/*
230		// Higgs only, pt reweighting
231		if( ctrl.mH <= 140 ) {
#	Line 170 \| Line 242 \| int main(int argc, char argv)**
242		initRunLumiRangeMap();
243		}
244
245	<	initMuonIDMVA();
245	>	// initMuonIDMVA();
246		initMuonIsoMVA();
247		initElectronIDMVA();
248		initElectronIsoMVA();
249		initTrigger();
250	<
251	<
252	<	//##########################################################################
253	<	// Setup tree I/O
182	<	//##########################################################################
250	>
251	>	// hack
252	>	initEvtRhoMap(evtrhoMap);
253	>
254
255		//
256	<	// Access samples and fill histograms
256	>	// Setup tree I/O
257	>	//--------------------------------------------------------------------------------------------------------------
258		TFile *inputFile=0;
259		TTree *eventTree=0;
260		string currentFile("");
261
190	–	// Data structures to store info from TTrees
262		mithep::EventHeader *info = new mithep::EventHeader();
263		// mithep::TGenInfo *ginfo = new mithep::TGenInfo();
264		mithep::Array<mithep::Electron> *electronArr = new mithep::Array<mithep::Electron>();
265		mithep::Array<mithep::Muon> *muonArr = new mithep::Array<mithep::Muon>();
266		mithep::Array<mithep::Vertex> *vtxArr = new mithep::Array<mithep::Vertex>();
267		mithep::Array<mithep::PFCandidate> *pfArr = new mithep::Array<mithep::PFCandidate>();
268	<	mithep::Array<mithep::PileupEnergyDensity> *puArr = new mithep::Array<mithep::PileupEnergyDensity>();
268	>	mithep::Array<mithep::PileupInfo> *puArr = new mithep::Array<mithep::PileupInfo>();
269	>	mithep::Array<mithep::PileupEnergyDensity> *puDArr = new mithep::Array<mithep::PileupEnergyDensity>();
270		mithep::Array<mithep::Track> *trkArr = new mithep::Array<mithep::Track>();
271		mithep::TriggerMask *trigMask = new mithep::TriggerMask();
272		mithep::TriggerTable *hltTable = new mithep::TriggerTable();
#	Line 205 \| Line 277 \| int main(int argc, char argv)**
277		TString fInfoName(Names::gkEvtHeaderBrn);
278		TString fPrimVtxName(Names::gkPVBrn);
279		TString fPFCandidateName(Names::gkPFCandidatesBrn);
280	+	TString fPileupInfoName(Names::gkPileupInfoBrn);
281		TString fPileupEnergyDensityName(Names::gkPileupEnergyDensityBrn);
282		TString fTrackName(Names::gkTrackBrn);
283		TString fTriggerMaskName(Names::gkHltBitBrn);
#	Line 215 \| Line 288 \| int main(int argc, char argv)**
288		chain->SetBranchAddress(fMuonName, &muonArr);
289		chain->SetBranchAddress(fPrimVtxName, &vtxArr);
290		chain->SetBranchAddress(fPFCandidateName, &pfArr);
291	<	chain->SetBranchAddress(fPileupEnergyDensityName, &puArr);
291	>	if( ctrl.mc ) chain->SetBranchAddress(fPileupInfoName, &puArr);
292	>	chain->SetBranchAddress(fPileupEnergyDensityName, &puDArr);
293		chain->SetBranchAddress(fTrackName, &trkArr);
294		chain->SetBranchAddress(fTriggerMaskName, &trigMask);
295		cout << "hlttable: " << fTriggerTableName << endl;
#	Line 240 \| Line 314 \| int main(int argc, char argv)**
314		cout << "nEntries: " << imax << endl;
315
316
317	<	//##########################################################################
318	<	// Loop !!!!!!!!! should alternate events here and +1 in the training ...
319	<	//##########################################################################
317	>	//
318	>	// Loop !!!!!!!!!
319	>	//--------------------------------------------------------------------------------------------------------------
320		for(UInt_t ientry=0; ientry<imax; ientry++)
321		{
322		chain->GetEntry(ientry);
323		if(!(ientry%1000)) cerr << "entry: " << ientry << endl;
250	–
324		setPV( ctrl, vtxArr, vtx);
325
326	+	cout << "origrho: " << puDArr->At(0)->Rho()
327	+	<< "\torigrholoweta: " << puDArr->At(0)->RhoLowEta()
328	+	<< endl;
329	+
330	+
331	+	//
332	+	// data/MC
333	+	//
334		if(ctrl.mc) {
335	<	weights.w = getWeight(xstab,entrymap,chain);
335	>	//
336	>	// xsec & PU weights
337	>	//
338	>	// weights.w = getWeight(xstab,entrymap,chain)/ctrl.totalMC;
339	>	int npu = -1;
340	>	for(int i=0;i<puArr->GetEntries();i++) {
341	>	if(puArr->At(i)->GetBunchCrossing() == 0)
342	>	npu = puArr->At(i)->GetPU_NumInteractions();
343	>	}
344	>	assert(npu>=0);
345	>	evtinfo.npu;
346	>	weights.npuw = getPUWeight(evtinfo.npu);
347	>	// cout << "weight: " << weights.w << endl;
348	>	//
349	>	// trigger
350	>	//
351	>	if( string(chain->GetFile()->GetEndpointUrl()->GetFile()) != currentFile ) {
352	>	currentFile = string(chain->GetFile()->GetEndpointUrl()->GetFile());
353	>	hltchain->SetBranchAddress(fTriggerTableName, &hltTableStrings);
354	>	hltchain->GetEntry(0);
355	>	hltTable->Clear();
356	>	fillTriggerBits(hltTable, hltTableStrings );
357	>	}
358	>	if( ctrl.debug ) cout << "file is : " << currentFile << endl;
359	>	fillTriggerBits( hltTable, trigMask, triggerBits );
360	>	passes_HLT_MC = true; // passed to apply as extern global, just for sync
361	>	if( !passHLTMC(triggerBits, info->RunNum(), info->EvtNum() ) ) {
362	>	passes_HLT_MC = false;
363	>	}
364		} else {
365	+	//
366	+	// JSON
367	+	//
368	+	/*
369	+	RunLumiRangeMap::RunLumiPairType rl(info->RunNum(), info->LumiSec());
370	+	if( !(rlrm.HasRunLumi(rl)) ) {
371	+	if( ctrl.debug ) cout << "\tfails JSON" << endl;
372	+	continue;
373	+	}
374	+	*/
375	+	//
376	+	// trigger
377	+	//
378		if( string(chain->GetFile()->GetEndpointUrl()->GetFile()) != currentFile ) {
379		currentFile = string(chain->GetFile()->GetEndpointUrl()->GetFile());
380		hltchain->SetBranchAddress(fTriggerTableName, &hltTableStrings);
#	Line 261 \| Line 383 \| int main(int argc, char argv)**
383		fillTriggerBits(hltTable, hltTableStrings );
384		}
385		if( ctrl.debug ) cout << "file is : " << currentFile << endl;
386	+	/*
387		fillTriggerBits( hltTable, trigMask, triggerBits );
265	–	}
266	–
267	–
268	–	//
269	–	// trigger
270	–	//
271	–	if( !ctrl.mc ) {
388		if( !passHLT(triggerBits, info->RunNum(), info->EvtNum() ) ) {
389		if( ctrl.debug ) cout << "\tfails trigger ... " << endl;
390		continue;
391		}
392	+	*/
393		}
394	<
394	>
395		//
396		// lepton/kinematic selection ...
397		//
398	+	failingLeptons.clear();
399	+	passingLeptons.clear();
400		EventData ret4l =
401	<	apply_HZZ4L_selection(ctrl, info,
401	>
402	>	/*
403	>	apply_HZZ4L_reference2_selection(ctrl, info,
404	>	vtx,
405	>	pfArr,
406	>	puDArr,
407	>	electronArr,
408	>	&electronReferencePreSelection,
409	>	&electronReferenceIDMVASelection,
410	>	&electronReferenceIsoSelection,
411	>	muonArr,
412	>	&muonReferencePreSelection,
413	>	&muonIDPFSelection,
414	>	&muonReferenceIsoSelection);
415	>	*/
416	>	apply_HZZ4L_reference2_selection(ctrl, info,
417		vtx,
418		pfArr,
419	<	puArr,
419	>	puDArr,
420		electronArr,
421	<	&electronPreSelection,
422	<	// &electronBDTSelection,
289	<	&electronIDMVASelection,
290	<	// &electronIsoSelection,
421	>	&electronReferencePreSelection,
422	>	&electronReferenceIDMVASelection,
423		&electronIsoMVASelection,
424		muonArr,
425	<	&muonPreSelection,
425	>	&muonReferencePreSelection,
426		&muonIDPFSelection,
295	–	// &muonIDMVASelection,
296	–	// &passMuonSelection,
427		&muonIsoMVASelection);
428	+
429	+
430	+
431		if( ctrl.debug ) cout << endl;
432	+
433	+
434	+	int Z1type=0, Z2type=0;
435	+	if( ret4l.status.selectionBits.to_ulong() >= PASS_ZCANDIDATE ) {
436	+	if( abs(ret4l.Z1leptons[0].type) == 11 ) Z1type = 11;
437	+	if( abs(ret4l.Z1leptons[0].type) == 13 ) Z1type = 13;
438	+	}
439	+	if( ret4l.status.selectionBits.to_ulong() >= PASS_ZZCANDIDATE ) {
440	+	if( abs(ret4l.Z2leptons[0].type) == 11 ) Z2type = 11;
441	+	if( abs(ret4l.Z2leptons[0].type) == 13 ) Z2type = 13;
442	+	}
443	+
444	+	cout << "bits: " << ret4l.status.selectionBits << "\t"
445	+	<< "Z1: " << Z1type << "\t"
446	+	<< "Z2: " << Z2type << endl;
447	+	cout << endl;
448	+
449
450		if( ret4l.status.pass() ) {
301	–
451		fillAngles(ret4l,angles);
452		fillKinematics(ret4l,kinematics);
453		fillEventInfo(info,evtinfo);
454	<	//if(ctrl.mc) fillGenInfo(ginfo,geninfo);
454	>	if( ctrl.mc) {
455	>	// fillGenInfo(ginfo,geninfo);
456	>	setEffiencyWeights(ret4l, weights);
457	>	if(ctrl.debug)
458	>	cout << "w: " << weights.w << "\t"
459	>	<< "won: " << weights.won << "\t"
460	>	<< "woff: " << weights.woff << endl;
461	>	}
462
463		/*
464		// only for Higgs < 140
#	Line 323 \| Line 479 \| int main(int argc, char argv)**
479		pass++;
480		// if( pass > 3 ) break;
481
482	<	}
482	>	} else if( ret4l.status.selectionBits.test(PASS_GOODZ1) ) { // save for fakes ...
483	>	// if(ctrl.debug) {
484	>	cout << "failingLeptons : " << failingLeptons.size() << endl;
485	>	for( int f=0; f<failingLeptons.size(); f++ ) {
486	>	SimpleLepton l = failingLeptons[f];
487	>	cout << "f: " << f << "\t"
488	>	<< "type: " << l.type << "\t"
489	>	<< "pT: " << l.vec.Pt() << "\t"
490	>	<< "eta: " << l.vec.Eta()
491	>	<< endl;
492	>	// }
493	>	}
494	>	foTree.Fill();
495	>	}
496		}
497
498	+
499	+	foTree.getFile()->cd();
500	+	foTree.getTree()->Write();
501		nt.WriteClose();
502	+
503	+	cout << endl;
504	+	cout << endl;
505	+	for( int i=0; i<cutvec.size(); i++ ) {
506	+	cout << "cut: " << i << "\t"
507	+	<< "pass: " << cutvec[i];
508	+
509	+	if( i>PASS_TRIGGER&&i<=PASS_GOODZ1 )
510	+	cout << "\t2e: " << zcutvec[0][i]
511	+	<< "\t2m: " << zcutvec[1][i];
512	+
513	+	if( i>PASS_ZCANDIDATE )
514	+	cout << "\t4e: " << zzcutvec[0][i]
515	+	<< "\t4m: " << zzcutvec[1][i]
516	+	<< "\t2e2m: " << zzcutvec[2][i];
517	+
518	+	cout << "\t" << cutstrs[i] << endl;
519	+
520	+	cout << endl;
521	+	}
522	+
523		}
524
525		//----------------------------------------------------------------------------
#	Line 382 \| Line 575 \| bool setPV(ControlFlags ctrl,
575		vtx.SetErrors(bestPV->XErr(),bestPV->YErr(),bestPV->ZErr());
576		return true;
577		};
578	+
579	+
580	+
581	+	//----------------------------------------------------------------------------
582	+	void setEffiencyWeights(EventData & evtdat, WeightStruct & weights )
583	+	//----------------------------------------------------------------------------
584	+	{
585	+	vector<SimpleLepton> lepvec = evtdat.Z1leptons;
586	+	lepvec.insert(lepvec.end(), evtdat.Z2leptons.begin(), evtdat.Z2leptons.end());
587	+	double w_offline=-1, werr_offline=0;
588	+	double w_online=-1, werr_online=0;
589	+
590	+	vector< pair <double,double> > wlegs; // pair here is eff & err
591	+	vector< pair <float,float> > mvec; // pair here is eta & pt
592	+
593	+	// vector< pair <float,float> > evec; // pair here is eta & pt
594	+	// now deal with medium vs loose
595	+	vector< pair< bool, pair <float,float> > > evec; // pair here is eta & pt
596	+
597	+	for( int k=0; k<lepvec.size(); k++ ) {
598	+	if( abs(lepvec[k].type) == 13 ) {
599	+	mvec.push_back( std::pair<float,float> (fabs(lepvec[k].vec.Eta()), lepvec[k].vec.Pt()) );
600	+	wlegs.push_back( muonPerLegOfflineEfficiencyWeight( fabs(lepvec[k].vec.Eta()),
601	+	lepvec[k].vec.Pt() ) );
602	+	} else {
603	+
604	+	// now deal with medium vs loose
605	+	// evec.push_back( std::pair<float,float> (fabs(lepvec[k].vec.Eta()), lepvec[k].vec.Pt()) );
606	+
607	+	std::pair<float,float> tmppair(fabs(lepvec[k].vec.Eta()), lepvec[k].vec.Pt());
608	+	evec.push_back( std::pair<bool, std::pair<float,float> > (lepvec[k].isTight, tmppair) );
609	+
610	+	// wlegs.push_back( elePerLegOfflineEfficiencyWeight( fabs(lepvec[k].vec.Eta()),
611	+	// lepvec[k].vec.Pt() ) );
612	+
613	+	wlegs.push_back( elePerLegOfflineEfficiencyWeight( fabs(lepvec[k].vec.Eta()),
614	+	lepvec[k].vec.Pt(),
615	+	lepvec[k].isTight ) );
616	+
617	+	}
618	+	}
619	+
620	+	pair<double,double> offpair = getOfflineEfficiencyWeight( wlegs );
621	+	weights.woff = offpair.first;
622	+	weights.werroff = offpair.second;
623	+
624	+	pair<double,double> onpair = getOnlineEfficiencyWeight( mvec, evec );
625	+	weights.won = onpair.first;
626	+	weights.werron = onpair.second;
627	+	}
628	+
629	+
630	+	//----------------------------------------------------------------------------
631	+	void initRunLumiRangeMap()
632	+	//----------------------------------------------------------------------------
633	+	{
634	+	/*
635	+	rlrm.AddJSONFile(std::string("./data/Cert_136033-149442_7TeV_Apr21ReReco_Collisions10_JSON.txt"));
636	+	// rlrm.AddJSONFile(std::string("./data/Cert_160404-173244_7TeV_PromptReco_Collisions11_JSON_v2.txt"));
637	+	rlrm.AddJSONFile(std::string("./data/Cert_160404-178078_7TeV_PromptReco_Collisions11_JSON.txt"));
638	+	rlrm.AddJSONFile(std::string("./data/Cert_160404-163869_7TeV_May10ReReco_Collisions11_JSON_v3.txt"));
639	+	rlrm.AddJSONFile(std::string("./data/Cert_170249-172619_7TeV_ReReco5Aug_Collisions11_JSON.txt"));
640	+	// r11b
641	+	rlrm.AddJSONFile(std::string("./data/Cert_160404-180252_7TeV_PromptReco_Collisions11_JSON.txt"));
642	+	*/
643	+	};
644	+
645	+
646	+	//----------------------------------------------------------------------------
647	+	void initPUWeights()
648	+	//----------------------------------------------------------------------------
649	+	{
650	+	TFile * puf = new TFile("data/PileupReweighting.Summer11DYmm_To_Full2011.root");
651	+	hpu = (TH1D*)(puf->Get("puWeights"));
652	+	}
653	+
654	+	//----------------------------------------------------------------------------
655	+	double getPUWeight(unsigned npu)
656	+	//----------------------------------------------------------------------------
657	+	{
658	+	return hpu->GetBinContent(hpu->FindBin(npu));
659	+	}
660	+
661	+	//----------------------------------------------------------------------------
662	+	void initEvtRhoMap( map<unsigned, float> & evtrhoMap )
663	+	//----------------------------------------------------------------------------
664	+	{
665	+	unsigned evt;
666	+	float rho;
667	+
668	+	FILE * f = fopen("evtrho.dat", "r");
669	+	while( fscanf( f, "%u:%f", &evt, &rho ) ) {
670	+	evtrhoMap[evt] = rho;
671	+	}
672	+
673	+	}

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Comparing UserCode/MitHzz4l/Selection/src/applySelection.cc (file contents): Revision 1.13 by khahn, Sat May 5 11:04:01 2012 UTC vs. Revision 1.21 by khahn, Sat May 12 03:00:15 2012 UTC

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Comparing UserCode/MitHzz4l/Selection/src/applySelection.cc (file contents):
Revision 1.13 by khahn, Sat May 5 11:04:01 2012 UTC vs.
Revision 1.21 by khahn, Sat May 12 03:00:15 2012 UTC