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70da6c5a | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | // | |
16 | // Task for Efficiency studies | |
17 | // Used for testing classes AliHFEcontainer and AliHFEfilter | |
18 | // Creates Efficiency Histograms | |
19 | // | |
20 | // Author: | |
21 | // Markus Fasel <M.Fasel@gsi.de> | |
22 | // | |
23 | #include <TAxis.h> | |
24 | #include <TCanvas.h> | |
25 | #include <TFile.h> | |
26 | #include <TGraphErrors.h> | |
27 | #include <TH1F.h> | |
28 | #include <TH2.h> | |
29 | #include <TIterator.h> | |
30 | #include <TLegend.h> | |
31 | #include <TObjArray.h> | |
32 | #include <TPad.h> | |
33 | ||
91c7e1ec | 34 | #include "AliAnalysisManager.h" |
70da6c5a | 35 | #include "AliCFAcceptanceCuts.h" |
91c7e1ec | 36 | #include "AliCFTrackIsPrimaryCuts.h" |
70da6c5a | 37 | #include "AliCFContainer.h" |
38 | #include "AliCFEffGrid.h" | |
39 | #include "AliESDEvent.h" | |
40 | #include "AliHFEcollection.h" | |
41 | #include "AliHFEcontainer.h" | |
42 | #include "AliHFEcutStep.h" | |
43 | #include "AliHFEefficiency.h" | |
44 | #include "AliHFEextraCuts.h" | |
45 | #include "AliHFEtrackFilter.h" | |
46 | #include "AliHFEtools.h" | |
47 | #include "AliMCEvent.h" | |
91c7e1ec | 48 | #include "AliMCEventHandler.h" |
70da6c5a | 49 | |
50 | ClassImp(AliHFEefficiency) | |
51 | ||
52 | AliHFEefficiency::AliHFEefficiency(): | |
53 | AliAnalysisTaskSE(), | |
54 | fFilter(NULL), | |
55 | fMCcut(NULL), | |
56 | fAcceptanceCuts(NULL), | |
57 | fEfficiency(NULL), | |
58 | fOutput(NULL), | |
59 | fCutTRD(kFALSE) | |
60 | { | |
61 | // | |
62 | // Default constructor | |
63 | // | |
64 | } | |
65 | ||
66 | AliHFEefficiency::AliHFEefficiency(const Char_t *name): | |
67 | AliAnalysisTaskSE(name), | |
68 | fFilter(NULL), | |
69 | fMCcut(NULL), | |
70 | fAcceptanceCuts(NULL), | |
71 | fEfficiency(NULL), | |
72 | fOutput(NULL), | |
73 | fCutTRD(kFALSE) | |
74 | { | |
75 | // | |
76 | // Main Constructor | |
77 | // | |
78 | DefineOutput(1, AliHFEcontainer::Class()); | |
79 | DefineOutput(2, TList::Class()); | |
80 | } | |
81 | ||
82 | AliHFEefficiency::~AliHFEefficiency(){ | |
83 | // | |
84 | // Destructor | |
85 | // | |
86 | if(fFilter) delete fFilter; | |
87 | if(fEfficiency) delete fEfficiency; | |
88 | if(fAcceptanceCuts) delete fAcceptanceCuts; | |
89 | if(fOutput) delete fOutput; | |
90 | } | |
91 | ||
92 | void AliHFEefficiency::UserCreateOutputObjects(){ | |
93 | // | |
94 | // Create the output objects | |
95 | // | |
96 | fEfficiency = new AliHFEcontainer("Efficiency"); | |
97 | fEfficiency->SetNumberOfVariables(4); | |
98 | // InitializeVariables | |
99 | fEfficiency->SetVariableName(0, "pt"); | |
100 | fEfficiency->MakeLogarithmicBinning(0, 40, 0.1, 10); | |
101 | fEfficiency->SetVariableName(1, "Eta"); | |
102 | fEfficiency->MakeLinearBinning(1, 20, -0.9, 0.9); | |
103 | fEfficiency->SetVariableName(2, "phi"); | |
104 | fEfficiency->MakeLinearBinning(2 , 18, 0, 2 * TMath::Pi()); | |
105 | fEfficiency->SetVariableName(3, "Charge"); | |
106 | fEfficiency->MakeLinearBinning(3, 2, -1.1, 1.1); | |
107 | // New container | |
108 | fEfficiency->CreateContainer("MCFilter", "Efficiency for MC Studies", 2); | |
109 | AliCFContainer *cont = fEfficiency->GetCFContainer("MCFilter"); | |
110 | cont->SetStepTitle(0, "MC Signal"); | |
111 | cont->SetStepTitle(1, "MC Signal in acceptance"); | |
112 | ||
113 | fFilter = new AliHFEtrackFilter("testfilter"); | |
114 | fFilter->GenerateCutSteps(); | |
115 | fFilter->InitCF(fEfficiency); | |
116 | fMCcut = fFilter->GetMCSignalCuts(); | |
117 | if(fCutTRD){ | |
118 | AliHFEcutStep *hfeTRD = fFilter->GetCutStep("HFETRD"); | |
119 | AliHFEextraCuts *hfecuts = dynamic_cast<AliHFEextraCuts *>(hfeTRD->GetCut("HFETRDCuts")); | |
120 | hfecuts->SetMinTrackletsTRD(4); | |
121 | } | |
122 | AliHFEcutStep *hfeITS = fFilter->GetCutStep("HFEITS"); | |
123 | AliHFEextraCuts *hfeitscuts = dynamic_cast<AliHFEextraCuts *>(hfeITS->GetCut("HFEPixelsCuts")); | |
124 | hfeitscuts->SetRequireITSpixel(AliHFEextraCuts::kFirst); | |
125 | ||
91c7e1ec | 126 | AliHFEcutStep *primary = fFilter->GetCutStep("Primary"); |
127 | AliCFTrackIsPrimaryCuts *primcuts = dynamic_cast<AliCFTrackIsPrimaryCuts *>(primary->GetCut("PrimaryCuts")); | |
128 | primcuts->SetMaxDCAToVertexXY(3); | |
129 | primcuts->SetMaxDCAToVertexZ(5); | |
130 | ||
70da6c5a | 131 | fAcceptanceCuts = new AliCFAcceptanceCuts("Acceptance", "MC Acceptance Cuts"); |
132 | fAcceptanceCuts->SetMinNHitITS(3); | |
133 | fAcceptanceCuts->SetMinNHitTPC(2); | |
134 | fAcceptanceCuts->SetMinNHitTRD(0); | |
135 | ||
136 | // create additional histos for testing purpose | |
137 | fOutput = new AliHFEcollection("histos", "QA histograms"); | |
138 | fOutput->CreateTH1F("hNtracks","Number of Tracks per Event", 100, 0, 100); | |
139 | fOutput->CreateTH1F("hPt","Pt of the tracks", 40, 0.1, 10); | |
140 | fOutput->BinLogAxis("hPt", 0); | |
141 | fOutput->CreateTH1F("kinkIndex", "Kink Index", 400, -200, 200); | |
142 | fOutput->CreateTH1F("itspixel", "ITS PIXEL", 2, 0, 2); | |
143 | fOutput->CreateTH1F("mcmother", "Mother PDG", 1000, -500, 500); | |
144 | fOutput->CreateTH2F("ptres", "Pt Resolution", 40, 0.1, 10, 200, -1.5, 1.5); | |
145 | fOutput->BinLogAxis("ptres", 0); | |
146 | } | |
147 | ||
148 | void AliHFEefficiency::UserExec(Option_t *){ | |
149 | // | |
150 | // Event Loop | |
151 | // Filter track, fill Efficiency container | |
152 | // | |
153 | fEfficiency->NewEvent(); | |
154 | fFilter->SetRecEvent(fInputEvent); | |
155 | if(fMCEvent){ | |
91c7e1ec | 156 | AliMCEventHandler *mcH = dynamic_cast<AliMCEventHandler *>(AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler()); |
157 | if(!mcH->InitOk()) return; | |
158 | if(!mcH->TreeK()) return; | |
159 | if(!mcH->TreeTR()) return; | |
70da6c5a | 160 | fFilter->SetMC(fMCEvent); |
161 | FilterMC(); | |
162 | } | |
163 | fFilter->FilterTracks(dynamic_cast<AliESDEvent *>(fInputEvent)); | |
164 | TObjArray *tracks = fFilter->GetFilteredTracks(); | |
165 | TIterator *iter = tracks->MakeIterator(); | |
166 | fOutput->Fill("hNtracks", tracks->GetEntriesFast()); | |
167 | AliESDtrack *track = NULL; | |
168 | while((track = dynamic_cast<AliESDtrack *>(iter->Next()))){ | |
169 | fOutput->Fill("hPt", track->Pt()); | |
170 | fOutput->Fill("kinkIndex", track->GetKinkIndex(0)); | |
171 | if(TESTBIT(track->GetITSClusterMap(), 0)) | |
172 | fOutput->Fill("itspixel",1); | |
173 | else | |
174 | fOutput->Fill("itspixel",0); | |
175 | AliMCParticle *mctrack = dynamic_cast<AliMCParticle *>(fMCEvent->GetTrack(TMath::Abs(track->GetLabel()))); | |
91c7e1ec | 176 | if(mctrack){ |
177 | Int_t motherLabel = mctrack->Particle()->GetFirstMother(); | |
178 | if(motherLabel){ | |
179 | AliMCParticle *mother = dynamic_cast<AliMCParticle *>(fMCEvent->GetTrack(motherLabel)); | |
180 | fOutput->Fill("mcmother", mother->Particle()->GetPdgCode()); | |
181 | } | |
182 | fOutput->Fill("ptres", mctrack->Pt(), (track->Pt() - mctrack->Pt())/mctrack->Pt()); | |
183 | } | |
70da6c5a | 184 | } |
185 | delete iter; | |
186 | fFilter->Flush(); | |
187 | PostData(1, fEfficiency); | |
188 | PostData(2, fOutput->GetList()); | |
189 | } | |
190 | ||
191 | void AliHFEefficiency::Terminate(Option_t *){ | |
192 | // | |
193 | // Evaluate Results | |
194 | // | |
195 | fEfficiency = dynamic_cast<AliHFEcontainer *>(GetOutputData(1)); | |
196 | if(!fEfficiency) return; | |
197 | PostProcess(); | |
198 | ||
199 | TList *l = dynamic_cast<TList *>(GetOutputData(2)); | |
200 | DrawPtResolution(l); | |
201 | } | |
202 | ||
203 | void AliHFEefficiency::FilterMC(){ | |
204 | // | |
205 | // Cut MC tracks | |
206 | // | |
207 | Double_t cont[4] = {0., 0., 0., 0.}; | |
208 | AliMCParticle *track = NULL; | |
209 | for(Int_t itrack = 0; itrack < fMCEvent->GetNumberOfTracks(); itrack++){ | |
210 | track = dynamic_cast<AliMCParticle *>(fMCEvent->GetTrack(itrack)); | |
211 | if(!fMCcut->IsSelected(track)) continue; | |
212 | cont[0] = track->Pt(); | |
213 | cont[1] = track->Eta(); | |
214 | cont[2] = track->Phi(); | |
215 | cont[3] = track->Charge()/3; | |
216 | //AliMCParticle *mother = dynamic_cast<AliMCParticle *>(fMCEvent->GetTrack(track->Particle()->GetFirstMother())); | |
217 | //if(TMath::Abs(mother->Particle()->GetPdgCode()) != 443) continue; | |
218 | fEfficiency->FillCFContainer("MCFilter", 0, cont); | |
219 | if(!fAcceptanceCuts->IsSelected(track)) continue; | |
220 | fEfficiency->FillCFContainer("MCFilter", 1, cont); | |
221 | } | |
222 | } | |
223 | ||
224 | void AliHFEefficiency::Load(const char* filename){ | |
225 | TFile *input = TFile::Open(filename); | |
226 | AliHFEcontainer *cin = dynamic_cast<AliHFEcontainer *>(input->Get("Efficiency")); | |
227 | fEfficiency = dynamic_cast<AliHFEcontainer *>(cin->Clone()); | |
228 | input->Close(); | |
229 | delete input; | |
230 | } | |
231 | ||
232 | void AliHFEefficiency::PostProcess(){ | |
233 | // | |
234 | // Calculate Efficiencies | |
235 | // | |
236 | fEfficiency->Print(); | |
237 | ||
238 | // Prepare containers | |
239 | AliCFContainer *crec = fEfficiency->MakeMergedCFContainer("merged", "Merged Container", "MCFilter:testfilter_container_signal"); | |
240 | AliCFContainer *cmc = fEfficiency->MakeMergedCFContainer("merged", "Merged Container", "MCFilter:testfilter_container_signalMC"); | |
241 | AliCFEffGrid *gridRec = new AliCFEffGrid("effrec", "Efficiency Calculation using rec vars", *crec); | |
242 | AliCFEffGrid *gridMC = new AliCFEffGrid("effmc", "Efficiency Calculation using mc vars", *cmc); | |
243 | ||
244 | TCanvas *ctmp = NULL; | |
245 | for(Int_t ivar = 0; ivar < crec->GetNVar(); ivar++){ | |
246 | ctmp = new TCanvas(Form("cEffSignal%s", crec->GetVarTitle(ivar)), Form("Signal Efficiency (%s)", crec->GetVarTitle(ivar))); | |
247 | ctmp->cd(); | |
248 | DrawSignalEfficiency(gridRec, crec, ivar); | |
249 | ||
250 | ctmp = new TCanvas(Form("cCutEff%s", crec->GetVarTitle(ivar)), Form("Cut Step Efficiency (%s)", crec->GetVarTitle(ivar))); | |
251 | ctmp->cd(); | |
252 | DrawCutEfficiency(gridRec, crec, ivar); | |
253 | ||
254 | ctmp = new TCanvas(Form("cEffSignalMC%s", crec->GetVarTitle(ivar)), Form("Signal Efficiency (%s, MC)", crec->GetVarTitle(ivar))); | |
255 | ctmp->cd(); | |
256 | DrawSignalEfficiency(gridMC, cmc, ivar); | |
257 | ||
258 | ctmp = new TCanvas(Form("cCutEffMC%s", crec->GetVarTitle(ivar)), Form("Cut Step Efficiency (%s, MC)", crec->GetVarTitle(ivar))); | |
259 | ctmp->cd(); | |
260 | DrawCutEfficiency(gridMC, cmc, ivar); | |
261 | } | |
262 | ||
263 | CalculatePTsmearing(); | |
264 | ||
265 | delete gridRec; | |
266 | delete gridMC; | |
267 | delete crec; | |
268 | delete cmc; | |
269 | } | |
270 | ||
271 | void AliHFEefficiency::DrawSignalEfficiency(AliCFEffGrid *eff, AliCFContainer *cont, Int_t var){ | |
272 | // | |
273 | // Efficiency of a cut step with respect to the signal | |
274 | // | |
275 | TH1 *hEff = NULL; | |
276 | Bool_t kFirst = kTRUE; | |
277 | TLegend *leg = new TLegend(0.5, 0.7, 0.89, 0.89); | |
278 | for(Int_t istep = 1; istep < cont->GetNStep(); istep++){ | |
279 | eff->CalculateEfficiency(istep, 0); | |
280 | hEff = eff->Project(var); | |
281 | hEff->SetTitle(Form("Signal Efficiency (%s)", cont->GetVarTitle(var))); | |
282 | hEff->GetYaxis()->SetRangeUser(0., 1.6); | |
283 | hEff->GetYaxis()->SetTitle("Efficiency"); | |
284 | hEff->SetStats(kFALSE); | |
285 | hEff->SetMarkerStyle(20+istep); | |
286 | hEff->SetMarkerColor(kBlue - 5 + istep); | |
287 | hEff->Draw(kFirst ? "ep" : "epsame"); | |
288 | kFirst = kFALSE; | |
289 | leg->AddEntry(hEff, cont->GetStepTitle(istep), "p"); | |
290 | } | |
291 | leg->SetBorderSize(0); | |
292 | leg->SetFillStyle(0); | |
293 | leg->Draw(); | |
294 | gPad->Update(); | |
295 | } | |
296 | ||
297 | void AliHFEefficiency::DrawCutEfficiency(AliCFEffGrid *eff, AliCFContainer *cont, Int_t var){ | |
298 | // | |
299 | // Efficiency of a cut step with respect to the previous one | |
300 | // | |
301 | Bool_t kFirst = kTRUE; | |
302 | TH1 *hEff = NULL; | |
303 | TLegend *leg = new TLegend(0.5, 0.7, 0.89, 0.89); | |
304 | TString effTitle; | |
305 | Int_t start = 0, length = 0; | |
306 | for(Int_t istep = 1; istep < cont->GetNStep(); istep++){ | |
307 | eff->CalculateEfficiency(istep, istep -1); | |
308 | hEff = eff->Project(var); | |
309 | effTitle = hEff->GetTitle(); | |
310 | start = effTitle.Index("projected"); length = effTitle.Length() - start; | |
311 | effTitle.Remove(start - 1, length + 1); | |
312 | effTitle.ReplaceAll("Efficiency: ", ""); | |
313 | hEff->SetTitle(Form("Cut Efficiency (%s)", cont->GetVarTitle(var))); | |
314 | hEff->GetYaxis()->SetRangeUser(0., 1.6); | |
315 | hEff->GetYaxis()->SetTitle("Efficiency"); | |
316 | hEff->SetStats(kFALSE); | |
317 | hEff->SetMarkerStyle(20+istep); | |
318 | hEff->SetMarkerColor(kBlue - 5 + istep); | |
319 | hEff->Draw(kFirst ? "ep" : "epsame"); | |
320 | kFirst = kFALSE; | |
321 | leg->AddEntry(hEff, effTitle.Data(), "p"); | |
322 | } | |
323 | leg->SetBorderSize(0); | |
324 | leg->SetFillStyle(0); | |
325 | leg->Draw(); | |
326 | gPad->Update(); | |
327 | } | |
328 | ||
329 | void AliHFEefficiency::CalculatePTsmearing(){ | |
330 | // | |
331 | // Efficiency of a cut step with respect to the same cut step filled with MC | |
332 | // Information | |
333 | // | |
334 | AliCFContainer *cont = fEfficiency->MakeMergedCFContainer("merged", "Merged Container", "testfilter_container_signal:testfilter_container_signalMC"); | |
335 | AliCFEffGrid *grid = new AliCFEffGrid("effc", "Efficiency Calculation", *cont); | |
336 | Bool_t kFirst = kTRUE; | |
337 | TH1 *hEff = NULL; | |
338 | TCanvas *c2 = new TCanvas("cSmear", "pT modification"); | |
339 | c2->cd(); | |
340 | TLegend *leg1 = new TLegend(0.5, 0.7, 0.89, 0.89); | |
341 | Int_t nStep = cont->GetNStep()/2; | |
342 | for(Int_t istep = 0; istep < nStep; istep++){ | |
343 | grid->CalculateEfficiency(istep, istep + nStep); | |
344 | hEff = grid->Project(0); | |
345 | hEff->SetStats(kFALSE); | |
346 | hEff->SetMarkerStyle(20+istep); | |
347 | hEff->SetMarkerColor(kBlue - 5 + istep); | |
348 | hEff->Draw(kFirst ? "ep" : "epsame"); | |
349 | kFirst = kFALSE; | |
350 | leg1->AddEntry(hEff, cont->GetStepTitle(istep), "p"); | |
351 | } | |
352 | leg1->Draw(); | |
353 | gPad->Update(); | |
354 | ||
355 | delete cont; | |
356 | delete grid; | |
357 | } | |
358 | ||
359 | void AliHFEefficiency::DrawPtResolution(TList *l){ | |
360 | // | |
361 | // Draw pt resolution | |
362 | // | |
363 | TH2 *h2 = dynamic_cast<TH2 *>(l->FindObject("ptres")); | |
364 | TGraphErrors *mean = new TGraphErrors(h2->GetNbinsX()); | |
365 | TGraphErrors *rms = new TGraphErrors(h2->GetNbinsX()); | |
366 | ||
367 | Double_t pt = 0., pterr = 0., mymean = 0., myrms = 0., mymeanerr = 0., myrmserr = 0.; | |
368 | TH1 *htmp = NULL; | |
369 | for(Int_t imom = 1; imom <= h2->GetXaxis()->GetLast(); imom++){ | |
370 | pt = h2->GetXaxis()->GetBinCenter(imom); | |
371 | pterr = h2->GetXaxis()->GetBinWidth(imom)/2.; | |
372 | htmp = h2->ProjectionY("py", imom, imom); | |
373 | mymean = htmp->GetMean(); | |
374 | myrms = htmp->GetRMS(); | |
375 | mymeanerr = htmp->GetMeanError(); | |
376 | myrmserr = htmp->GetRMSError(); | |
377 | delete htmp; | |
378 | mean->SetPoint(imom -1, pt, mymean); | |
379 | rms->SetPoint(imom -1, pt, myrms); | |
380 | mean->SetPointError(imom-1,pterr,mymeanerr); | |
381 | rms->SetPointError(imom-1,pterr,myrmserr); | |
382 | } | |
383 | ||
384 | TCanvas *c1 = new TCanvas("cPtShift", "pT Shift"); | |
385 | c1->cd(); | |
386 | mean->SetMarkerStyle(22); | |
387 | mean->SetMarkerColor(kBlue); | |
388 | mean->Draw("ape"); | |
389 | rms->SetMarkerStyle(22); | |
390 | rms->SetMarkerColor(kBlack); | |
391 | rms->Draw("pesame"); | |
392 | TLegend *leg = new TLegend(0.5, 0.7, 0.89, 0.89); | |
393 | leg->AddEntry(mean, "Mean", "lp"); | |
394 | leg->AddEntry(rms, "RMS", "lp"); | |
395 | leg->Draw(); | |
396 | gPad->Update(); | |
397 | } | |
398 |