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2/**************************************************************************
3* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4* *
5* Author: The ALICE Off-line Project. *
6* Contributors are mentioned in the code where appropriate. *
7* *
8* Permission to use, copy, modify and distribute this software and its *
9* documentation strictly for non-commercial purposes is hereby granted *
10* without fee, provided that the above copyright notice appears in all *
11* copies and that both the copyright notice and this permission notice *
12* appear in the supporting documentation. The authors make no claims *
13* about the suitability of this software for any purpose. It is *
14* provided "as is" without express or implied warranty. *
15**************************************************************************/
16//
17// Class for spectrum correction
18// Subtraction of hadronic background, Unfolding of the data and
19// Renormalization done here
20// The following containers have to be set:
21// - Correction framework container for real data
22// - Correction framework container for MC (Efficiency Map)
23// - Correction framework container for background coming from data
24// - Correction framework container for background coming from MC
25//
26// Author:
27// Raphaelle Bailhache <R.Bailhache@gsi.de>
28//
29
30#include <TArrayD.h>
31#include <TH1.h>
32#include <TList.h>
33#include <TObjArray.h>
34#include <TObject.h>
35#include <TROOT.h>
36#include <TCanvas.h>
37#include <TLegend.h>
38#include <TStyle.h>
39#include <TMath.h>
40#include <TAxis.h>
41#include <TGraphErrors.h>
42#include <TFile.h>
43#include <TPad.h>
44#include <TH2D.h>
45#include <TF1.h>
46
47#include "AliPID.h"
48#include "AliCFContainer.h"
49#include "AliCFDataGrid.h"
50#include "AliCFEffGrid.h"
51#include "AliCFGridSparse.h"
52#include "AliCFUnfolding.h"
53#include "AliLog.h"
54
55#include "AliHFEInclusiveSpectrumQA.h"
56#include "AliHFECorrectSpectrumBase.h"
57#include "AliHFEcuts.h"
58#include "AliHFEcontainer.h"
59#include "AliHFEtools.h"
60
61ClassImp(AliHFEInclusiveSpectrumQA)
62
63const Char_t *AliHFEInclusiveSpectrumQA::fgkNameCanvas[AliHFEInclusiveSpectrumQA::kNTypeEfficiency] = {
64 "V0Efficiency",
65 "MCEfficiency",
66 "ParametrizedEfficiency"
67};
68
69//____________________________________________________________
70AliHFEInclusiveSpectrumQA::AliHFEInclusiveSpectrumQA():
71 TNamed(),
72 fPtMax(7.0),
73 fListOfResult(),
74 fWriteToFile(kTRUE)
75{
76 //
77 // Default constructor
78 //
79
80 fListOfResult = new TObjArray(kNResults);
81 fListOfResult->SetName("ListOfResults");
82
83
84}
85//____________________________________________________________
86AliHFEInclusiveSpectrumQA::AliHFEInclusiveSpectrumQA(const char *name):
87 TNamed(name, ""),
88 fPtMax(7.0),
89 fListOfResult(),
90 fWriteToFile(kTRUE)
91{
92 //
93 // Default constructor
94 //
95
96 fListOfResult = new TObjArray(kNResults);
97 fListOfResult->SetName("ListOfResults");
98
99
100}
101
102//____________________________________________________________
103AliHFEInclusiveSpectrumQA::~AliHFEInclusiveSpectrumQA(){
104 //
105 // Destructor
106 //
107 if(fListOfResult) delete fListOfResult;
108
109}
110//____________________________________________________________
111void AliHFEInclusiveSpectrumQA::AddResultAt(TObject *obj,Int_t index)
112{
113 //
114 // Init what we need for the correction:
115 //
116
117 if(fListOfResult) fListOfResult->AddAt(obj,index);
118
119}
120//____________________________________________________________
121TObject *AliHFEInclusiveSpectrumQA::GetResult(Int_t index)
122{
123 //
124 // Get result
125 //
126
127 if(fListOfResult) return fListOfResult->UncheckedAt(index);
128 else return 0x0;
129
130}
131//____________________________________________________________
132void AliHFEInclusiveSpectrumQA::DrawProjections() const
133{
134 //
135 // get spectrum for beauty 2nd method
136 //
137 //
138 AliCFContainer *data = (AliCFContainer *) fListOfResult->UncheckedAt(kDataProjection);
139 THnSparseF *correlation = (THnSparseF *) fListOfResult->UncheckedAt(kCMProjection);
140 if(!data || !correlation) return;
141
142 Int_t ndimcont = data->GetNVar();
143 Int_t ndimcor = correlation->GetNdimensions();
144 Int_t charge = 3;
145 Int_t centrality = 5;
146 Int_t eta = 1;
147
148 TCanvas * canvas = new TCanvas("Projections","Projections",1000,700);
149 Int_t n = 0;
150 if(charge < ndimcont) n++;
151 if(centrality < ndimcont) n++;
152 if(eta < ndimcont) n++;
153 canvas->Divide(2,n);
154 Int_t counter = 1;
155
156 if(charge < ndimcont) {
157
158 canvas->cd(counter);
159 TH1 *checkcharge = (TH1 *) data->Project(data->GetNStep()-1,charge);
160 checkcharge->Draw();
161 counter++;
162 canvas->cd(counter);
163 TH2F* projectioncharge = (TH2F *) correlation->Projection(charge,charge+((Int_t)(ndimcor/2.)));
164 projectioncharge->Draw("colz");
165 counter++;
166
167 }
168
169 if(centrality < ndimcont) {
170 canvas->cd(counter);
171 TH1 *checkcentrality = (TH1 *) data->Project(data->GetNStep()-1,centrality);
172 checkcentrality->Draw();
173 counter++;
174 canvas->cd(counter);
175 TH2F *projectioncentrality = (TH2F *) correlation->Projection(centrality,centrality+((Int_t)(ndimcor/2.)));
176 projectioncentrality->Draw("colz");
177 counter++;
178 }
179
180 if(eta < ndimcont) {
181 canvas->cd(counter);
182 TH1 *checketa = (TH1 *) data->Project(data->GetNStep()-1,eta);
183 checketa->Draw();
184 counter++;
185 canvas->cd(counter);
186 TH2D* projectioneta = (TH2D *) correlation->Projection(eta,eta+((Int_t)(ndimcor/2.)));
187 projectioneta->Draw("colz");
188 }
189
190
191}
192//____________________________________________________________
193void AliHFEInclusiveSpectrumQA::DrawSubtractContamination() const
194{
195 //
196 // get spectrum for beauty 2nd method
197 //
198 //
199 TH1D *measuredTH1Daftersubstraction = (TH1D *) fListOfResult->UncheckedAt(kAfterSC);
200 TH1D *measuredTH1Dbeforesubstraction = (TH1D *) fListOfResult->UncheckedAt(kBeforeSC);
201 if(!measuredTH1Daftersubstraction || !measuredTH1Dbeforesubstraction) return;
202
203 SetStyle();
204
205 TCanvas * cbackgroundsubtraction = new TCanvas("backgroundsubtraction","backgroundsubtraction",1000,700);
206 cbackgroundsubtraction->Divide(2,1);
207 cbackgroundsubtraction->cd(1);
208 gPad->SetLogy();
209 gPad->SetTicks();
210 measuredTH1Daftersubstraction->SetStats(0);
211 measuredTH1Daftersubstraction->SetTitle("");
212 measuredTH1Daftersubstraction->GetYaxis()->SetTitleOffset(1.5);
213 measuredTH1Daftersubstraction->GetYaxis()->SetTitle("dN/dp_{T} [(GeV/c)^{-1}]");
214 measuredTH1Daftersubstraction->GetXaxis()->SetTitle("p^{rec}_{T} [GeV/c]");
215 measuredTH1Daftersubstraction->GetXaxis()->SetRangeUser(0.0,fPtMax);
216 measuredTH1Daftersubstraction->SetMarkerStyle(25);
217 measuredTH1Daftersubstraction->SetMarkerColor(kBlack);
218 measuredTH1Daftersubstraction->SetLineColor(kBlack);
219 measuredTH1Dbeforesubstraction->SetStats(0);
220 measuredTH1Dbeforesubstraction->SetTitle("");
221 measuredTH1Dbeforesubstraction->GetYaxis()->SetTitle("dN/dp_{T} [(GeV/c)^{-1}]");
222 measuredTH1Dbeforesubstraction->GetXaxis()->SetTitle("p^{rec}_{T} [GeV/c]");
223 measuredTH1Dbeforesubstraction->GetXaxis()->SetRangeUser(0.0,fPtMax);
224 measuredTH1Dbeforesubstraction->SetMarkerStyle(24);
225 measuredTH1Dbeforesubstraction->SetMarkerColor(kBlue);
226 measuredTH1Dbeforesubstraction->SetLineColor(kBlue);
227 measuredTH1Daftersubstraction->Draw();
228 measuredTH1Dbeforesubstraction->Draw("same");
229 TLegend *legsubstraction = new TLegend(0.4,0.6,0.89,0.89);
230 legsubstraction->AddEntry(measuredTH1Dbeforesubstraction,"With hadron contamination","p");
231 legsubstraction->AddEntry(measuredTH1Daftersubstraction,"Without hadron contamination ","p");
232 legsubstraction->SetFillStyle(0);
233 legsubstraction->SetLineStyle(0);
234 legsubstraction->SetLineColor(0);
235 legsubstraction->Draw("same");
236 cbackgroundsubtraction->cd(2);
237 gPad->SetLogy();
238 gPad->SetTicks();
239 TH1D* ratiomeasuredcontamination = (TH1D*)measuredTH1Dbeforesubstraction->Clone();
240 ratiomeasuredcontamination->SetName("ratiomeasuredcontamination");
241 ratiomeasuredcontamination->SetTitle("");
242 ratiomeasuredcontamination->GetYaxis()->SetTitleOffset(1.5);
243 ratiomeasuredcontamination->GetYaxis()->SetTitle("(with contamination - without contamination) / with contamination");
244 ratiomeasuredcontamination->GetXaxis()->SetTitle("p^{rec}_{T} [GeV/c]");
245 ratiomeasuredcontamination->GetYaxis()->SetRangeUser(0.8,1.2);
246 ratiomeasuredcontamination->GetXaxis()->SetRangeUser(0.0,fPtMax);
247 ratiomeasuredcontamination->Sumw2();
248 ratiomeasuredcontamination->Add(measuredTH1Daftersubstraction,-1.0);
249 ratiomeasuredcontamination->Divide(measuredTH1Dbeforesubstraction);
250 ratiomeasuredcontamination->SetStats(0);
251 ratiomeasuredcontamination->SetMarkerStyle(26);
252 ratiomeasuredcontamination->SetMarkerColor(kBlack);
253 ratiomeasuredcontamination->SetLineColor(kBlack);
254 for(Int_t k=0; k < ratiomeasuredcontamination->GetNbinsX(); k++){
255 ratiomeasuredcontamination->SetBinError(k+1,0.0);
256 }
257 ratiomeasuredcontamination->Draw("P");
258 if(fWriteToFile) cbackgroundsubtraction->SaveAs("BackgroundSubtracted.png");
259
260}
261
262
263//____________________________________________________________
264void AliHFEInclusiveSpectrumQA::DrawCorrectWithEfficiency(Int_t typeeff) const
265{
266 //
267 // Correct the spectrum for efficiency and unfolding
268 // with both method and compare
269 //
270
271 TH1D *afterE = 0x0;
272 TH1D *beforeE = 0x0;
273 TH1D *efficiencyDproj = 0x0;
274 TF1 *efficiencyparametrized = 0x0;
275
276 if(typeeff== kV0) {
277 afterE = (TH1D *) fListOfResult->UncheckedAt(kAfterV0);
278 beforeE = (TH1D *) fListOfResult->UncheckedAt(kBeforeV0);
279 efficiencyDproj = (TH1D *) fListOfResult->UncheckedAt(kV0Efficiency);
280 }
281 if(typeeff== kMC) {
282 afterE = (TH1D *) fListOfResult->UncheckedAt(kAfterMCE);
283 beforeE = (TH1D *) fListOfResult->UncheckedAt(kBeforeMCE);
284 efficiencyDproj = (TH1D *) fListOfResult->UncheckedAt(kMCEfficiency);
285 }
286 if(typeeff== kParametrized) {
287 afterE = (TH1D *) fListOfResult->UncheckedAt(kAfterPE);
288 beforeE = (TH1D *) fListOfResult->UncheckedAt(kBeforePE);
289 efficiencyparametrized = (TF1 *) fListOfResult->UncheckedAt(kPEfficiency);
290 }
291
292 if((typeeff==kV0 || typeeff==kMC) && (!afterE || !beforeE || !efficiencyDproj)) return;
293 if(typeeff==kParametrized && (!afterE || !beforeE || !efficiencyparametrized)) return;
294
295 SetStyle();
296
297 TCanvas * cEfficiency = new TCanvas(AliHFEInclusiveSpectrumQA::fgkNameCanvas[typeeff],AliHFEInclusiveSpectrumQA::fgkNameCanvas[typeeff],1000,700);
298 cEfficiency->Divide(2,1);
299 cEfficiency->cd(1);
300 gPad->SetLogy();
301 gPad->SetTicks();
302 afterE->SetStats(0);
303 afterE->SetTitle("");
304 afterE->GetYaxis()->SetTitleOffset(1.5);
305 afterE->GetYaxis()->SetTitle("dN/dp_{T} [(GeV/c)^{-1}]");
306 afterE->GetXaxis()->SetTitle("p^{rec}_{T} [GeV/c]");
307 afterE->GetXaxis()->SetRangeUser(0.0,fPtMax);
308 afterE->SetMarkerStyle(25);
309 afterE->SetMarkerColor(kBlack);
310 afterE->SetLineColor(kBlack);
311 beforeE->SetStats(0);
312 beforeE->SetTitle("");
313 beforeE->GetYaxis()->SetTitle("dN/dp_{T} [(GeV/c)^{-1}]");
314 beforeE->GetXaxis()->SetTitle("p_{T} [GeV/c]");
315 beforeE->GetXaxis()->SetRangeUser(0.0,fPtMax);
316 beforeE->SetMarkerStyle(24);
317 beforeE->SetMarkerColor(kBlue);
318 beforeE->SetLineColor(kBlue);
319 afterE->Draw();
320 beforeE->Draw("same");
321 TLegend *legefficiency = new TLegend(0.4,0.6,0.89,0.89);
322 legefficiency->AddEntry(beforeE,"Before Efficiency correction","p");
323 legefficiency->AddEntry(afterE,"After Efficiency correction","p");
324 legefficiency->SetFillStyle(0);
325 legefficiency->SetLineStyle(0);
326 legefficiency->SetLineColor(0);
327 legefficiency->Draw("same");
328 cEfficiency->cd(2);
329 gPad->SetTicks();
330 if((typeeff==kV0 || typeeff==kMC)) {
331 efficiencyDproj->SetTitle("");
332 efficiencyDproj->SetStats(0);
333 efficiencyDproj->GetYaxis()->SetTitleOffset(1.5);
334 efficiencyDproj->GetYaxis()->SetRangeUser(0.0,1.0);
335 efficiencyDproj->GetYaxis()->SetTitle("Efficiency");
336 efficiencyDproj->GetXaxis()->SetTitle("p^{rec}_{T} [GeV/c]");
337 efficiencyDproj->GetXaxis()->SetRangeUser(0.0,fPtMax);
338 efficiencyDproj->SetMarkerStyle(25);
339 efficiencyDproj->Draw();
340 }
341 if(typeeff==kParametrized) {
342 efficiencyparametrized->Draw();
343 }
344
345 if(fWriteToFile) {
346 if(typeeff==kV0) cEfficiency->SaveAs("EfficiencyV0.png");
347 if(typeeff==kMC) cEfficiency->SaveAs("EfficiencyMC.png");
348 if(typeeff==kParametrized) cEfficiency->SaveAs("EfficiencyParametrized.png");
349 }
350
351}
352
353//____________________________________________________________
354void AliHFEInclusiveSpectrumQA::DrawUnfolding() const
355{
356 //
357 // Draw unfolding
358 //
359 TH1D *measuredspectrumD = (TH1D *) fListOfResult->UncheckedAt(kBeforeU);
360 TH1D *residualspectrumD = (TH1D *) fListOfResult->UncheckedAt(kResidualU);
361 TH1D *efficiencyDproj = (TH1D *) fListOfResult->UncheckedAt(kUEfficiency);
362 THnSparseF *correlation = (THnSparseF *) fListOfResult->UncheckedAt(kCMProjection);
363
364 if(!measuredspectrumD || !residualspectrumD || !efficiencyDproj || !correlation) return;
365
366 Int_t ndimcor = (Int_t) correlation->GetNdimensions()/2.;
367
368 SetStyle();
369
370 TCanvas * cunfolding = new TCanvas("unfolding","unfolding",1000,700);
371 cunfolding->Divide(2,2);
372 cunfolding->cd(1);
373 gPad->SetLogy();
374 gPad->SetTicks();
375 residualspectrumD->GetYaxis()->SetTitle("dN/dp_{T} [(GeV/c)^{-1}]");
376 residualspectrumD->GetXaxis()->SetTitle("p^{rec}_{T} [GeV/c]");
377 residualspectrumD->GetXaxis()->SetRangeUser(0.0,fPtMax);
378 residualspectrumD->SetStats(0);
379 residualspectrumD->SetTitle("");
380 residualspectrumD->GetYaxis()->SetTitleOffset(1.5);
381 residualspectrumD->SetMarkerStyle(26);
382 residualspectrumD->SetMarkerColor(kBlue);
383 residualspectrumD->SetLineColor(kBlue);
384 residualspectrumD->Sumw2();
385 residualspectrumD->Draw("P");
386 measuredspectrumD->SetStats(0);
387 measuredspectrumD->SetTitle("");
388 measuredspectrumD->GetYaxis()->SetTitleOffset(1.5);
389 measuredspectrumD->SetMarkerStyle(25);
390 measuredspectrumD->SetMarkerColor(kBlack);
391 measuredspectrumD->SetLineColor(kBlack);
392 measuredspectrumD->Draw("same");
393 TLegend *legres = new TLegend(0.4,0.6,0.89,0.89);
394 legres->AddEntry(residualspectrumD,"Residual","p");
395 legres->AddEntry(measuredspectrumD,"Measured","p");
396 legres->SetFillStyle(0);
397 legres->SetLineStyle(0);
398 legres->SetLineColor(0);
399 legres->Draw("same");
400 cunfolding->cd(2);
401 gPad->SetTicks();
402 TH1D* ratioresidual = (TH1D*)residualspectrumD->Clone();
403 ratioresidual->SetName("ratioresidual");
404 ratioresidual->SetTitle("");
405 ratioresidual->GetYaxis()->SetRangeUser(0.6,1.4);
406 ratioresidual->GetYaxis()->SetTitle("Folded/Measured");
407 ratioresidual->GetXaxis()->SetTitle("p_{T} [GeV/c]");
408 ratioresidual->Divide(measuredspectrumD);
409 ratioresidual->SetStats(0);
410 ratioresidual->Draw();
411 cunfolding->cd(3);
412 gPad->SetTicks();
413 efficiencyDproj->GetYaxis()->SetTitle("Efficiency");
414 efficiencyDproj->GetXaxis()->SetTitle("p^{MC}_{T} [GeV/c]");
415 efficiencyDproj->GetXaxis()->SetRangeUser(0.0,fPtMax);
416 efficiencyDproj->GetYaxis()->SetRangeUser(0.0,1.0);
417 efficiencyDproj->SetStats(0);
418 efficiencyDproj->SetTitle("");
419 efficiencyDproj->GetYaxis()->SetTitleOffset(1.5);
420 efficiencyDproj->SetMarkerStyle(26);
421 efficiencyDproj->SetMarkerColor(kBlue);
422 efficiencyDproj->SetLineColor(kBlue);
423 efficiencyDproj->Sumw2();
424 efficiencyDproj->Draw("P");
425 cunfolding->cd(4);
426 TH2F *projectioncorr = (TH2F *) correlation->Projection(0,ndimcor);
427 projectioncorr->GetYaxis()->SetTitle("p^{ESD}_{T} [GeV/c]");
428 projectioncorr->GetXaxis()->SetTitle("p^{MC}_{T} [GeV/c]");
429 projectioncorr->GetXaxis()->SetRangeUser(0.0,fPtMax);
430 projectioncorr->GetYaxis()->SetRangeUser(0.0,fPtMax);
431 projectioncorr->SetStats(0);
432 projectioncorr->SetTitle("");
433 projectioncorr->Draw("colz");
434
435 if(fWriteToFile){
436 cunfolding->SaveAs("Unfolding.png");
437 }
438
439}
440//____________________________________________________________
441void AliHFEInclusiveSpectrumQA::DrawResult()
442{
443 //
444 // Draw Results
445 //
446 TGraphErrors* correctedspectrumD = (TGraphErrors *) fListOfResult->UncheckedAt(kFinalResultUnfolded);
447 TGraphErrors* alltogetherspectrumD = (TGraphErrors *) fListOfResult->UncheckedAt( kFinalResultDirectEfficiency);
448 if(!correctedspectrumD || !alltogetherspectrumD) return;
449
450 SetStyle();
451
452 TCanvas * ccorrected = new TCanvas("corrected","corrected",1000,700);
453 ccorrected->Divide(2,1);
454 ccorrected->cd(1);
455 gPad->SetLogy();
456 gPad->SetTicks();
457 correctedspectrumD->SetTitle("");
458 correctedspectrumD->GetYaxis()->SetTitleOffset(1.5);
459 correctedspectrumD->GetYaxis()->SetRangeUser(0.000001,100.0);
460 correctedspectrumD->GetXaxis()->SetRangeUser(0.0,fPtMax);
461 correctedspectrumD->SetMarkerStyle(26);
462 correctedspectrumD->SetMarkerColor(kBlue);
463 correctedspectrumD->SetLineColor(kBlue);
464 correctedspectrumD->Draw("AP");
465 alltogetherspectrumD->SetTitle("");
466 alltogetherspectrumD->GetYaxis()->SetTitleOffset(1.5);
467 alltogetherspectrumD->GetYaxis()->SetRangeUser(0.000000001,1.0);
468 alltogetherspectrumD->SetMarkerStyle(25);
469 alltogetherspectrumD->SetMarkerColor(kBlack);
470 alltogetherspectrumD->SetLineColor(kBlack);
471 alltogetherspectrumD->Draw("P");
472 TLegend *legcorrected = new TLegend(0.4,0.6,0.89,0.89);
473 legcorrected->AddEntry(correctedspectrumD,"Unfolded","p");
474 legcorrected->AddEntry(alltogetherspectrumD,"Direct corrected","p");
475 legcorrected->SetFillStyle(0);
476 legcorrected->SetLineStyle(0);
477 legcorrected->SetLineColor(0);
478 legcorrected->Draw("same");
479 ccorrected->cd(2);
480 gPad->SetTicks();
481 TH1D* ratiocorrected = DivideSpectra(correctedspectrumD,alltogetherspectrumD);
482 ratiocorrected->SetName("ratiocorrected");
483 ratiocorrected->SetTitle("");
484 ratiocorrected->GetYaxis()->SetTitleOffset(1.5);
485 ratiocorrected->GetYaxis()->SetTitle("Unfolded/DirectCorrected");
486 ratiocorrected->GetXaxis()->SetTitle("p_{T} [GeV/c]");
487 ratiocorrected->GetXaxis()->SetRangeUser(0.0,fPtMax);
488 ratiocorrected->GetYaxis()->SetRangeUser(0.4,1.4);
489 ratiocorrected->SetStats(0);
490 ratiocorrected->Draw();
491 if(fWriteToFile)ccorrected->SaveAs("CorrectedResults.png");
492
493}
494//____________________________________________________________
495TH1D *AliHFEInclusiveSpectrumQA::DivideSpectra(TGraphErrors *ga, TGraphErrors *gb)
496{
497 //
498 // Divide Spectra
499 //
500
501 TH1D *afterE = (TH1D *) fListOfResult->UncheckedAt(kAfterMCE);
502 if(!afterE) return 0x0;
503
504 TH1D *histoB = (TH1D*) afterE->Clone();
505 histoB->Sumw2();
506 histoB->SetName("ratio");
507 TH1D *histoa = (TH1D*) afterE->Clone();
508 histoa->Sumw2();
509 histoa->SetName("a");
510 TH1D *histob = (TH1D*) afterE->Clone();
511 histob->Sumw2();
512 histob->SetName("b");
513
514 double xa,ya,xb,yb,eya,eyb;
515 Int_t npointsa = ga->GetN();
516 Int_t npointsb = gb->GetN();
517 if(npointsa != npointsb) {
518 printf("Problem the two spectra have not the same number of points\n");
519 return 0x0;
520 }
521 for(Int_t k = 0; k < npointsa; k++){
522 ga->GetPoint(k,xa,ya);
523 gb->GetPoint(k,xb,yb);
524 //
525 Double_t centerhisto = histoa->GetBinCenter(k+1);
526 //
527 if((TMath::Abs(xa-xb) > 0.0001) || (TMath::Abs(xa-centerhisto) > 0.0001)) {
528 printf("Problem not the same x axis\n");
529 return 0x0;
530 }
531 histoa->SetBinContent(k+1,ya);
532 histob->SetBinContent(k+1,yb);
533 //
534 eya = ga->GetErrorY(k);
535 eyb = gb->GetErrorY(k);
536 //
537 histoa->SetBinError(k+1,eya);
538 histob->SetBinError(k+1,eyb);
539
540 }
541
542 histoB->Sumw2();
543 histoB->Divide(histoa,histob,1.0,1.0,"B");
544
545 return histoB;
546
547}
548//__________________________________________
549void AliHFEInclusiveSpectrumQA::SetStyle() const
550{
551 //
552 // Set style
553 //
554
555 gStyle->SetPalette(1);
556 gStyle->SetOptStat(1111);
557 gStyle->SetPadBorderMode(0);
558 gStyle->SetCanvasColor(10);
559 gStyle->SetPadLeftMargin(0.13);
560 gStyle->SetPadRightMargin(0.13);
561
562}