[u/mrichter/AliRoot.git] / PWG1 / AliComparisonDEdx.cxx

//------------------------------------------------------------------------------
// Implementation of AliComparisonDEdx class. It keeps information from 
// comparison of reconstructed and MC particle tracks. In addtion, 
// it keeps selection cuts used during comparison. The comparison 
// information is stored in the ROOT histograms. Analysis of these 
// histograms can be done by using Analyse() class function. The result of 
// the analysis (histograms/graphs) are stored in the folder which is 
// a data of AliComparisonDEdx.
//  
// Author: J.Otwinowski 04/02/2008 
//------------------------------------------------------------------------------

/*
 
  // after running comparison task, read the file, and get component
  gSystem->Load("libPWG1.so");
  TFile f("Output.root");
  AliComparisonDEdx * compObj = (AliComparisonDEdx*)f.Get("AliComparisonDEdx");

  // analyse comparison data
  compObj->Analyse();

  // the output histograms/graphs will be stored in the folder "folderDEdx" 
  compObj->GetAnalysisFolder()->ls("*");

  // user can save whole comparison object (or only folder with anlysed histograms) 
  // in the seperate output file (e.g.)
  TFile fout("Analysed_DEdx.root"."recreate");
  compObj->Write(); // compObj->GetAnalysisFolder()->Write();
  fout.Close();

*/

#include <iostream>

#include "TFile.h"
#include "TCint.h"
#include "TH3F.h"
#include "TH2F.h"
#include "TF1.h"
#include "TProfile.h"
#include "TProfile2D.h"
#include "TGraph2D.h"
#include "TCanvas.h"
#include "TGraph.h"
//
#include "AliESDEvent.h"
#include "AliESD.h"
#include "AliESDfriend.h"
#include "AliESDfriendTrack.h"
#include "AliRecInfoCuts.h" 
#include "AliMCInfoCuts.h" 
#include "AliLog.h" 
//
#include "AliMathBase.h"
#include "AliTreeDraw.h"
//#include "TStatToolkit.h"

#include "AliMCInfo.h" 
#include "AliESDRecInfo.h" 
#include "AliComparisonDEdx.h" 

using namespace std;

ClassImp(AliComparisonDEdx)

//_____________________________________________________________________________
AliComparisonDEdx::AliComparisonDEdx():
//  TNamed("AliComparisonDEdx","AliComparisonDEdx"),
  AliComparisonObject("AliComparisonDEdx"),

  // dEdx 
  fTPCSignalNormTan(0), 
  fTPCSignalNormSPhi(0),
  fTPCSignalNormTPhi(0), 
  //
  fTPCSignalNormTanSPhi(0),
  fTPCSignalNormTanTPhi(0),
  fTPCSignalNormTanSPt(0), 
  
  // Cuts 
  fCutsRC(0), 
  fCutsMC(0),
  fMCPtMin(0),
  fMCAbsTanThetaMax(0),
  fMCPdgCode(0),

  // histogram folder 
  fAnalysisFolder(0)
{
  Init();
}

//_____________________________________________________________________________
AliComparisonDEdx::~AliComparisonDEdx(){
   
  if(fTPCSignalNormTan)  delete fTPCSignalNormTan; fTPCSignalNormTan=0; 
  if(fTPCSignalNormSPhi) delete fTPCSignalNormSPhi; fTPCSignalNormSPhi=0;
  if(fTPCSignalNormTPhi) delete fTPCSignalNormTPhi; fTPCSignalNormTPhi=0;
  //
  if(fTPCSignalNormTanSPhi) delete fTPCSignalNormTanSPhi; fTPCSignalNormTanSPhi=0;
  if(fTPCSignalNormTanTPhi) delete fTPCSignalNormTanTPhi; fTPCSignalNormTanTPhi=0;
  if(fTPCSignalNormTanSPt)  delete fTPCSignalNormTanSPt; fTPCSignalNormTanSPt=0;

  if(fAnalysisFolder) delete fAnalysisFolder; fAnalysisFolder=0;
}

//_____________________________________________________________________________
void AliComparisonDEdx::Init()
{
  // Init histograms
  
  // TPC dEdx
  fTPCSignalNormTan = new TH2F("CdEdxTan","CdEdxTan",50, -2,2,  40,30,70); 
  fTPCSignalNormTan->SetXTitle("tan(#theta)");
  fTPCSignalNormTan->SetYTitle("rec. dE/dx / calc. dE/dx");

  fTPCSignalNormSPhi   = new TH2F("CdEdxSPhi","CdEdxSPhi",10,0.0,1,40,30,70);
  fTPCSignalNormSPhi->SetXTitle("sin(#phi)");
  fTPCSignalNormSPhi->SetYTitle("rec. dE/dx / calc. dE/dx");

  fTPCSignalNormTPhi   = new TH2F("CdEdxTPhi","CdEdxTPhi",10,0.0,2,40,30,70); 
  fTPCSignalNormTPhi->SetXTitle("tan(#phi)");
  fTPCSignalNormTPhi->SetYTitle("rec. dE/dx / calc. dE/dx");

  fTPCSignalNormTanSPhi= new TH3F("CdEdxTanSPhi","CdEdxTanSPhi",20, -2,2, 10,0.0 ,1,  40,30,70);
  fTPCSignalNormTanSPhi->SetXTitle("tan(#theta)");
  fTPCSignalNormTanSPhi->SetYTitle("sin(#phi)");
  fTPCSignalNormTanSPhi->SetZTitle("rec. dE/dx / calc. dE/dx");

  fTPCSignalNormTanTPhi= new TH3F("CdEdxTanTPhi","CdEdxTanTPhi",20, -2,2, 10,0.0 ,1,  40,30,70);
  fTPCSignalNormTanTPhi->SetXTitle("tan(#theta)");
  fTPCSignalNormTanTPhi->SetYTitle("tan(#phi)");
  fTPCSignalNormTanTPhi->SetZTitle("rec. dE/dx / calc. dE/dx");

  fTPCSignalNormTanSPt= new TH3F("CdEdxTanSPt","CdEdxTanSPt",20, -2,2, 10,0.3 ,3, 40,30,70); 
  fTPCSignalNormTanSPt->SetXTitle("tan(#theta)");
  fTPCSignalNormTanSPt->SetYTitle("#sqrt{p_{t}}");
  fTPCSignalNormTanSPt->SetZTitle("rec. dE/dx / calc. dE/dx");

  // Init cuts
  if(!fCutsMC) 
    AliDebug(AliLog::kError, "ERROR: Cannot find AliMCInfoCuts object");
  if(!fCutsRC) 
    AliDebug(AliLog::kError, "ERROR: Cannot find AliRecInfoCuts object");

    // init folder
    fAnalysisFolder = CreateFolder("folderDEdx","Analysis de/dx Folder");
}

//_____________________________________________________________________________
void AliComparisonDEdx::Process(AliMCInfo* infoMC, AliESDRecInfo *infoRC){

  // Fill dE/dx  comparison information
  
  Float_t mcpt = infoMC->GetParticle().Pt();
  Float_t tantheta = TMath::Tan(infoMC->GetParticle().Theta()-TMath::Pi()*0.5);
  Float_t mprim = infoMC->GetPrim();

  // distance to Prim. vertex 
  const Double_t* dv = infoMC->GetVDist(); 

  Bool_t isPrim = TMath::Sqrt(dv[0]*dv[0] + dv[1]*dv[1])<fCutsMC->GetMaxR() && TMath::Abs(dv[2])<fCutsMC->GetMaxVz();
  
  // Check selection cuts 
  if (fCutsMC->IsPdgParticle(TMath::Abs(infoMC->GetParticle().GetPdgCode())) == kFALSE) return; 
  if (!isPrim) return;
  if (infoRC->GetStatus(1)!=3) return;
  if (!infoRC->GetESDtrack()) return;  
  if (infoRC->GetESDtrack()->GetTPCNcls()<fCutsRC->GetMinNClustersTPC()) return;
  if (!infoRC->GetESDtrack()->GetConstrainedParam()) return;
  //if (mprim>1.4) return;
  //if (mprim<0.5) return;
  if (mprim > fCutsMC->GetMaxTPCSignal()) return;
  if (mprim < fCutsMC->GetMinTPCSignal()) return;
  if (infoRC->GetESDtrack()->GetTPCsignalN()<fCutsRC->GetMinTPCsignalN()) return;
  //
  Float_t ratio = infoRC->GetESDtrack()->GetTPCsignal()/infoMC->GetPrim();
  Float_t sphi =  infoRC->GetESDtrack()->GetInnerParam()->GetSnp();
  Float_t tphi =  sphi/TMath::Sqrt(1-sphi*sphi);

  if (TMath::Abs(infoMC->GetParticle().GetPdgCode()) != GetMCPdgCode()) return;
  //if (mcpt>0.5) {
  if (mcpt > GetMCPtMin()) {
    fTPCSignalNormTan->Fill(tantheta,ratio);    // only subset
  }

  //if (TMath::Abs(tantheta)<0.5){
  if (TMath::Abs(tantheta) < GetMCAbsTanThetaMax()){
    fTPCSignalNormSPhi->Fill(sphi,ratio);       // only subset
    fTPCSignalNormTPhi->Fill(tphi,ratio);       // only subset
  }
  fTPCSignalNormTanSPhi->Fill(tantheta,sphi,ratio);    
  fTPCSignalNormTanTPhi->Fill(tantheta,tphi,ratio);    
  fTPCSignalNormTanSPt->Fill(tantheta,TMath::Sqrt(mcpt),ratio);
}

//_____________________________________________________________________________
Long64_t AliComparisonDEdx::Merge(TCollection* list) 
{
  // Merge list of objects (needed by PROOF)

  if (!list)
  return 0;

  if (list->IsEmpty())
  return 1;

  TIterator* iter = list->MakeIterator();
  TObject* obj = 0;

  // collection of generated histograms
  Int_t count=0;
  while((obj = iter->Next()) != 0) 
  {
    AliComparisonDEdx* entry = dynamic_cast<AliComparisonDEdx*>(obj);
    if (entry == 0) continue;

    fTPCSignalNormTan->Add(entry->fTPCSignalNormTan);
    fTPCSignalNormSPhi->Add(entry->fTPCSignalNormSPhi);
    fTPCSignalNormTPhi->Add(entry->fTPCSignalNormTPhi);
    //
    fTPCSignalNormTanSPhi->Add(entry->fTPCSignalNormTanSPhi);
    fTPCSignalNormTanTPhi->Add(entry->fTPCSignalNormTanTPhi);
    fTPCSignalNormTanSPt->Add(entry->fTPCSignalNormTanSPt);

    count++;
  }

return count;
}

//_____________________________________________________________________________
void AliComparisonDEdx::Exec(AliMCInfo* infoMC, AliESDRecInfo *infoRC)
{
  // Process comparison information
  Process(infoMC,infoRC);
}

//_____________________________________________________________________________
TH1F* AliComparisonDEdx::MakeResol(TH2F * his, Int_t integ, Bool_t type)
{
  // Make resolution histograms
  TH1F *hisr, *hism;
  if (!gPad) new TCanvas;
  hisr = AliTreeDraw::CreateResHistoI(his,&hism,integ);
  if (type) return hism;
  else 
    return hisr;
}

//_____________________________________________________________________________
void AliComparisonDEdx::Analyse()
{
  // Analyse comparison information and store output histograms
  // in the folder "folderDEdx"
  //

  TH1::AddDirectory(kFALSE);
  
  AliComparisonDEdx * comp=this;
  TFolder *folder = comp->GetAnalysisFolder();

  TH1F *hiss=0;
  TGraph2D * gr=0;

  // recreate folder every time
  if(folder) delete folder;
  folder = CreateFolder("folderDEdx","Analysis DEdx Folder");
  folder->SetOwner();

  // write results in the folder 
  TCanvas * c = new TCanvas("can","TPC dedx");
  c->cd();

  hiss = comp->MakeResol(comp->fTPCSignalNormTan,4,0);
  hiss->SetXTitle("Tan(#theta)");
  hiss->SetYTitle("#sigma_{dEdx}");
  hiss->Draw();
  hiss->SetName("TPCdEdxResolTan");

  if(folder) folder->Add(hiss);
  //
  hiss = comp->MakeResol(comp->fTPCSignalNormTan,4,1); 
  hiss->SetXTitle("Tan(#theta)");
  hiss->SetYTitle("<dEdx>");
  hiss->Draw(); 
  hiss->SetName("TPCdEdxMeanTan");

  if(folder) folder->Add(hiss);
  //
  gr = AliMathBase::MakeStat2D(comp->fTPCSignalNormTanSPt,3,1,4);
  gr->GetXaxis()->SetTitle("Tan(#theta)");
  gr->GetYaxis()->SetTitle("#sqrt{p_{t}(GeV)}");
  gr->GetZaxis()->SetTitle("<dEdx>");
  gr->SetName("TPCdEdxMeanTanPt_1");
  gr->GetHistogram()->Draw("colz"); 

  if(folder) folder->Add(gr->GetHistogram());
  //
  gr = AliMathBase::MakeStat2D(comp->fTPCSignalNormTanSPt,3,1,5);
  gr->GetXaxis()->SetTitle("Tan(#theta)");
  gr->GetYaxis()->SetTitle("#sqrt{p_{t}(GeV)}");
  gr->GetZaxis()->SetTitle("#sigma_{dEdx}");
  gr->SetName("TPCdEdxMeanTanPt_2");
  gr->GetHistogram()->Draw("colz"); 

  if(folder) folder->Add(gr->GetHistogram());

  // set pointer to fAnalysisFolder
  fAnalysisFolder = folder;
}

//_____________________________________________________________________________
TFolder* AliComparisonDEdx::CreateFolder(TString name,TString title) { 
// create folder for analysed histograms
TFolder *folder = 0;
  folder = new TFolder(name.Data(),title.Data());

  return folder;
}
Commit	Line	Data
3baa4bfd	1	//------------------------------------------------------------------------------
	2	// Implementation of AliComparisonDEdx class. It keeps information from
	3	// comparison of reconstructed and MC particle tracks. In addtion,
	4	// it keeps selection cuts used during comparison. The comparison
	5	// information is stored in the ROOT histograms. Analysis of these
	6	// histograms can be done by using Analyse() class function. The result of
	7	// the analysis (histograms/graphs) are stored in the folder which is
	8	// a data of AliComparisonDEdx.
	9	//
	10	// Author: J.Otwinowski 04/02/2008
	11	//------------------------------------------------------------------------------
	12
	13	/*
	14
	15	// after running comparison task, read the file, and get component
	16	gSystem->Load("libPWG1.so");
	17	TFile f("Output.root");
	18	AliComparisonDEdx * compObj = (AliComparisonDEdx*)f.Get("AliComparisonDEdx");
	19
	20	// analyse comparison data
	21	compObj->Analyse();
	22
	23	// the output histograms/graphs will be stored in the folder "folderDEdx"
	24	compObj->GetAnalysisFolder()->ls("*");
	25
	26	// user can save whole comparison object (or only folder with anlysed histograms)
	27	// in the seperate output file (e.g.)
	28	TFile fout("Analysed_DEdx.root"."recreate");
	29	compObj->Write(); // compObj->GetAnalysisFolder()->Write();
	30	fout.Close();
	31
	32	*/
	33
	34	#include <iostream>
	35
	36	#include "TFile.h"
	37	#include "TCint.h"
	38	#include "TH3F.h"
	39	#include "TH2F.h"
	40	#include "TF1.h"
	41	#include "TProfile.h"
	42	#include "TProfile2D.h"
	43	#include "TGraph2D.h"
	44	#include "TCanvas.h"
	45	#include "TGraph.h"
	46	//
	47	#include "AliESDEvent.h"
	48	#include "AliESD.h"
	49	#include "AliESDfriend.h"
	50	#include "AliESDfriendTrack.h"
	51	#include "AliRecInfoCuts.h"
	52	#include "AliMCInfoCuts.h"
	53	#include "AliLog.h"
	54	//
	55	#include "AliMathBase.h"
	56	#include "AliTreeDraw.h"
	57	//#include "TStatToolkit.h"
	58
	59	#include "AliMCInfo.h"
	60	#include "AliESDRecInfo.h"
	61	#include "AliComparisonDEdx.h"
	62
	63	using namespace std;
	64
65	ClassImp(AliComparisonDEdx)
66
67	//_____________________________________________________________________________
68	AliComparisonDEdx::AliComparisonDEdx():
69	// TNamed("AliComparisonDEdx","AliComparisonDEdx"),
70	AliComparisonObject("AliComparisonDEdx"),
71
72	// dEdx
73	fTPCSignalNormTan(0),
74	fTPCSignalNormSPhi(0),
75	fTPCSignalNormTPhi(0),
76	//
77	fTPCSignalNormTanSPhi(0),
78	fTPCSignalNormTanTPhi(0),
79	fTPCSignalNormTanSPt(0),
80
81	// Cuts
82	fCutsRC(0),
83	fCutsMC(0),
84	fMCPtMin(0),
85	fMCAbsTanThetaMax(0),
86	fMCPdgCode(0),
87
88	// histogram folder
89	fAnalysisFolder(0)
90	{
91	Init();
92	}
93
94	//_____________________________________________________________________________
95	AliComparisonDEdx::~AliComparisonDEdx(){
96
97	if(fTPCSignalNormTan) delete fTPCSignalNormTan; fTPCSignalNormTan=0;
98	if(fTPCSignalNormSPhi) delete fTPCSignalNormSPhi; fTPCSignalNormSPhi=0;
99	if(fTPCSignalNormTPhi) delete fTPCSignalNormTPhi; fTPCSignalNormTPhi=0;
100	//
101	if(fTPCSignalNormTanSPhi) delete fTPCSignalNormTanSPhi; fTPCSignalNormTanSPhi=0;
102	if(fTPCSignalNormTanTPhi) delete fTPCSignalNormTanTPhi; fTPCSignalNormTanTPhi=0;
103	if(fTPCSignalNormTanSPt) delete fTPCSignalNormTanSPt; fTPCSignalNormTanSPt=0;
104
105	if(fAnalysisFolder) delete fAnalysisFolder; fAnalysisFolder=0;
106	}
107
108	//_____________________________________________________________________________
109	void AliComparisonDEdx::Init()
110	{
111	// Init histograms
112
113	// TPC dEdx
114	fTPCSignalNormTan = new TH2F("CdEdxTan","CdEdxTan",50, -2,2, 40,30,70);
115	fTPCSignalNormTan->SetXTitle("tan(#theta)");
116	fTPCSignalNormTan->SetYTitle("rec. dE/dx / calc. dE/dx");
117
118	fTPCSignalNormSPhi = new TH2F("CdEdxSPhi","CdEdxSPhi",10,0.0,1,40,30,70);
119	fTPCSignalNormSPhi->SetXTitle("sin(#phi)");
120	fTPCSignalNormSPhi->SetYTitle("rec. dE/dx / calc. dE/dx");
121
122	fTPCSignalNormTPhi = new TH2F("CdEdxTPhi","CdEdxTPhi",10,0.0,2,40,30,70);
123	fTPCSignalNormTPhi->SetXTitle("tan(#phi)");
124	fTPCSignalNormTPhi->SetYTitle("rec. dE/dx / calc. dE/dx");
125
126	fTPCSignalNormTanSPhi= new TH3F("CdEdxTanSPhi","CdEdxTanSPhi",20, -2,2, 10,0.0 ,1, 40,30,70);
127	fTPCSignalNormTanSPhi->SetXTitle("tan(#theta)");
128	fTPCSignalNormTanSPhi->SetYTitle("sin(#phi)");
129	fTPCSignalNormTanSPhi->SetZTitle("rec. dE/dx / calc. dE/dx");
130
131	fTPCSignalNormTanTPhi= new TH3F("CdEdxTanTPhi","CdEdxTanTPhi",20, -2,2, 10,0.0 ,1, 40,30,70);
132	fTPCSignalNormTanTPhi->SetXTitle("tan(#theta)");
133	fTPCSignalNormTanTPhi->SetYTitle("tan(#phi)");
134	fTPCSignalNormTanTPhi->SetZTitle("rec. dE/dx / calc. dE/dx");
135
136	fTPCSignalNormTanSPt= new TH3F("CdEdxTanSPt","CdEdxTanSPt",20, -2,2, 10,0.3 ,3, 40,30,70);
137	fTPCSignalNormTanSPt->SetXTitle("tan(#theta)");
138	fTPCSignalNormTanSPt->SetYTitle("#sqrt{p_{t}}");
139	fTPCSignalNormTanSPt->SetZTitle("rec. dE/dx / calc. dE/dx");
140
141	// Init cuts
142	if(!fCutsMC)
143	AliDebug(AliLog::kError, "ERROR: Cannot find AliMCInfoCuts object");
144	if(!fCutsRC)
145	AliDebug(AliLog::kError, "ERROR: Cannot find AliRecInfoCuts object");
146
147	// init folder
148	fAnalysisFolder = CreateFolder("folderDEdx","Analysis de/dx Folder");
149	}
150
151	//_____________________________________________________________________________
152	void AliComparisonDEdx::Process(AliMCInfo* infoMC, AliESDRecInfo *infoRC){
153
154	// Fill dE/dx comparison information
155
156	Float_t mcpt = infoMC->GetParticle().Pt();
157	Float_t tantheta = TMath::Tan(infoMC->GetParticle().Theta()-TMath::Pi()*0.5);
158	Float_t mprim = infoMC->GetPrim();
159
160	// distance to Prim. vertex
161	const Double_t* dv = infoMC->GetVDist();
162
163	Bool_t isPrim = TMath::Sqrt(dv[0]dv[0] + dv[1]dv[1])<fCutsMC->GetMaxR() && TMath::Abs(dv[2])<fCutsMC->GetMaxVz();
164
165	// Check selection cuts
166	if (fCutsMC->IsPdgParticle(TMath::Abs(infoMC->GetParticle().GetPdgCode())) == kFALSE) return;
167	if (!isPrim) return;
168	if (infoRC->GetStatus(1)!=3) return;
169	if (!infoRC->GetESDtrack()) return;
170	if (infoRC->GetESDtrack()->GetTPCNcls()<fCutsRC->GetMinNClustersTPC()) return;
171	if (!infoRC->GetESDtrack()->GetConstrainedParam()) return;
172	//if (mprim>1.4) return;
173	//if (mprim<0.5) return;
174	if (mprim > fCutsMC->GetMaxTPCSignal()) return;
175	if (mprim < fCutsMC->GetMinTPCSignal()) return;
176	if (infoRC->GetESDtrack()->GetTPCsignalN()<fCutsRC->GetMinTPCsignalN()) return;
177	//
178	Float_t ratio = infoRC->GetESDtrack()->GetTPCsignal()/infoMC->GetPrim();
179	Float_t sphi = infoRC->GetESDtrack()->GetInnerParam()->GetSnp();
180	Float_t tphi = sphi/TMath::Sqrt(1-sphi*sphi);
181
182	if (TMath::Abs(infoMC->GetParticle().GetPdgCode()) != GetMCPdgCode()) return;
183	//if (mcpt>0.5) {
184	if (mcpt > GetMCPtMin()) {
185	fTPCSignalNormTan->Fill(tantheta,ratio); // only subset
186	}
187
188	//if (TMath::Abs(tantheta)<0.5){
189	if (TMath::Abs(tantheta) < GetMCAbsTanThetaMax()){
190	fTPCSignalNormSPhi->Fill(sphi,ratio); // only subset
191	fTPCSignalNormTPhi->Fill(tphi,ratio); // only subset
192	}
193	fTPCSignalNormTanSPhi->Fill(tantheta,sphi,ratio);
194	fTPCSignalNormTanTPhi->Fill(tantheta,tphi,ratio);
195	fTPCSignalNormTanSPt->Fill(tantheta,TMath::Sqrt(mcpt),ratio);
196	}
197
198	//_____________________________________________________________________________
199	Long64_t AliComparisonDEdx::Merge(TCollection* list)
200	{
201	// Merge list of objects (needed by PROOF)
202
203	if (!list)
204	return 0;
205
206	if (list->IsEmpty())
207	return 1;
208
209	TIterator* iter = list->MakeIterator();
210	TObject* obj = 0;
211
212	// collection of generated histograms
213	Int_t count=0;
214	while((obj = iter->Next()) != 0)
215	{
216	AliComparisonDEdx* entry = dynamic_cast<AliComparisonDEdx*>(obj);
217	if (entry == 0) continue;
218
219	fTPCSignalNormTan->Add(entry->fTPCSignalNormTan);
220	fTPCSignalNormSPhi->Add(entry->fTPCSignalNormSPhi);
221	fTPCSignalNormTPhi->Add(entry->fTPCSignalNormTPhi);
222	//
223	fTPCSignalNormTanSPhi->Add(entry->fTPCSignalNormTanSPhi);
224	fTPCSignalNormTanTPhi->Add(entry->fTPCSignalNormTanTPhi);
225	fTPCSignalNormTanSPt->Add(entry->fTPCSignalNormTanSPt);
226
227	count++;
228	}
229
230	return count;
231	}
232
233	//_____________________________________________________________________________
234	void AliComparisonDEdx::Exec(AliMCInfo* infoMC, AliESDRecInfo *infoRC)
235	{
236	// Process comparison information
237	Process(infoMC,infoRC);
238	}
239
240	//_____________________________________________________________________________
241	TH1F* AliComparisonDEdx::MakeResol(TH2F * his, Int_t integ, Bool_t type)
242	{
243	// Make resolution histograms
244	TH1F hisr, hism;
245	if (!gPad) new TCanvas;
246	hisr = AliTreeDraw::CreateResHistoI(his,&hism,integ);
247	if (type) return hism;
248	else
249	return hisr;
250	}
251
252	//_____________________________________________________________________________
253	void AliComparisonDEdx::Analyse()
254	{
255	// Analyse comparison information and store output histograms
256	// in the folder "folderDEdx"
257	//
258
259	TH1::AddDirectory(kFALSE);
260
261	AliComparisonDEdx * comp=this;
262	TFolder *folder = comp->GetAnalysisFolder();
263
264	TH1F *hiss=0;
265	TGraph2D * gr=0;
266
267	// recreate folder every time
268	if(folder) delete folder;
269	folder = CreateFolder("folderDEdx","Analysis DEdx Folder");
270	folder->SetOwner();
271
272	// write results in the folder
273	TCanvas * c = new TCanvas("can","TPC dedx");
274	c->cd();
275
276	hiss = comp->MakeResol(comp->fTPCSignalNormTan,4,0);
277	hiss->SetXTitle("Tan(#theta)");
278	hiss->SetYTitle("#sigma_{dEdx}");
279	hiss->Draw();
280	hiss->SetName("TPCdEdxResolTan");
281
282	if(folder) folder->Add(hiss);
283	//
284	hiss = comp->MakeResol(comp->fTPCSignalNormTan,4,1);
285	hiss->SetXTitle("Tan(#theta)");
286	hiss->SetYTitle("<dEdx>");
287	hiss->Draw();
288	hiss->SetName("TPCdEdxMeanTan");
289
290	if(folder) folder->Add(hiss);
291	//
292	gr = AliMathBase::MakeStat2D(comp->fTPCSignalNormTanSPt,3,1,4);
293	gr->GetXaxis()->SetTitle("Tan(#theta)");
294	gr->GetYaxis()->SetTitle("#sqrt{p_{t}(GeV)}");
295	gr->GetZaxis()->SetTitle("<dEdx>");
296	gr->SetName("TPCdEdxMeanTanPt_1");
297	gr->GetHistogram()->Draw("colz");
298
299	if(folder) folder->Add(gr->GetHistogram());
300	//
301	gr = AliMathBase::MakeStat2D(comp->fTPCSignalNormTanSPt,3,1,5);
302	gr->GetXaxis()->SetTitle("Tan(#theta)");
303	gr->GetYaxis()->SetTitle("#sqrt{p_{t}(GeV)}");
304	gr->GetZaxis()->SetTitle("#sigma_{dEdx}");
305	gr->SetName("TPCdEdxMeanTanPt_2");
306	gr->GetHistogram()->Draw("colz");
307
308	if(folder) folder->Add(gr->GetHistogram());
309
310	// set pointer to fAnalysisFolder
311	fAnalysisFolder = folder;
312	}
313
314	//_____________________________________________________________________________
315	TFolder* AliComparisonDEdx::CreateFolder(TString name,TString title) {
316	// create folder for analysed histograms
317	TFolder *folder = 0;
318	folder = new TFolder(name.Data(),title.Data());
319
320	return folder;
321	}
322