added correction for events with vertex but 0 tracks
[u/mrichter/AliRoot.git] / PWG0 / dNdEta / run.C
1 void run(Char_t* data, Int_t nRuns=20, Int_t offset=0, Bool_t aDebug = kFALSE, Bool_t aProof = kFALSE, Bool_t mc = kTRUE, const char* option = "")
2 {
3   if (aProof)
4   {
5     TProof::Open("lxb6046");
6
7     // Enable the needed package
8     gProof->UploadPackage("STEERBase");
9     gProof->EnablePackage("STEERBase");
10     gProof->UploadPackage("ESD");
11     gProof->EnablePackage("ESD");
12     gProof->UploadPackage("AOD");
13     gProof->EnablePackage("AOD");
14     gProof->UploadPackage("ANALYSIS");
15     gProof->EnablePackage("ANALYSIS");
16     gProof->UploadPackage("PWG0base");
17     gProof->EnablePackage("PWG0base");
18   }
19   else
20   {
21     gSystem->Load("libVMC");
22     gSystem->Load("libTree");
23     gSystem->Load("libSTEERBase");
24     gSystem->Load("libESD");
25     gSystem->Load("libANALYSIS");
26     gSystem->Load("libPWG0base");
27   }
28
29   // Create chain of input files
30   gROOT->LoadMacro("../CreateESDChain.C");
31   chain = CreateESDChain(data, nRuns, offset);
32
33   // Create the analysis manager
34   mgr = new AliAnalysisManager;
35
36   TString taskName("AlidNdEtaTask.cxx+");
37   if (aDebug)
38     taskName += "+g";
39
40   // Create, add task
41   if (aProof) {
42     gProof->Load(taskName);
43   } else
44     gROOT->Macro(taskName);
45
46   task = new AlidNdEtaTask(option);
47
48   AliPWG0Helper::AnalysisMode analysisMode = AliPWG0Helper::kTPC;
49   task->SetAnalysisMode(analysisMode);
50
51   if (analysisMode != AliPWG0Helper::kSPD)
52   {
53     // selection of esd tracks
54     gROOT->ProcessLine(".L ../CreateStandardCuts.C");
55     AliESDtrackCuts* esdTrackCuts = CreateTrackCuts(analysisMode);
56     if (!esdTrackCuts)
57     {
58       printf("ERROR: esdTrackCuts could not be created\n");
59       return;
60     }
61
62     task->SetTrackCuts(esdTrackCuts);
63   }
64
65   if (mc)
66     task->SetReadMC();
67
68   mgr->AddTask(task);
69
70   if (mc) {
71     // Enable MC event handler
72     AliMCEventHandler* handler = new AliMCEventHandler;
73     handler->SetReadTR(kFALSE);
74     mgr->SetMCtruthEventHandler(handler);
75   }
76
77   // Add ESD handler
78   AliESDInputHandler* esdH = new AliESDInputHandler;
79   mgr->SetInputEventHandler(esdH);
80
81   // Attach input
82   cInput  = mgr->CreateContainer("cInput", TChain::Class(), AliAnalysisManager::kInputContainer);
83   mgr->ConnectInput(task, 0, cInput);
84
85   // Attach output
86   cOutput = mgr->CreateContainer("cOutput", TList::Class(), AliAnalysisManager::kOutputContainer);
87   mgr->ConnectOutput(task, 0, cOutput);
88
89   // Enable debug printouts
90   if (aDebug)
91     mgr->SetDebugLevel(2);
92
93   // Run analysis
94   mgr->InitAnalysis();
95   mgr->PrintStatus();
96
97   mgr->StartAnalysis((aProof) ? "proof" : "local", chain);
98 }
99
100 void loadlibs()
101 {
102   gSystem->Load("libTree");
103   gSystem->Load("libVMC");
104
105   gSystem->Load("libSTEERBase");
106   gSystem->Load("libANALYSIS");
107   gSystem->Load("libPWG0base");
108 }
109
110 void FinishAnalysisAll(const char* dataInput = "analysis_esd_raw.root", const char* dataOutput = "analysis_esd.root", const char* correctionMapFile = "correction_map.root", const char* correctionMapFolder = "dndeta_correction")
111 {
112   loadlibs();
113
114   AlidNdEtaCorrection* dNdEtaCorrection = new AlidNdEtaCorrection(correctionMapFolder, correctionMapFolder);
115   TFile::Open(correctionMapFile);
116   dNdEtaCorrection->LoadHistograms();
117
118   TFile* file = TFile::Open(dataInput);
119
120   if (!file)
121   {
122     cout << "Error. File not found" << endl;
123     return;
124   }
125
126   dNdEtaAnalysis* fdNdEtaAnalysis = new dNdEtaAnalysis("dndeta", "dndeta");
127   fdNdEtaAnalysis->LoadHistograms("fdNdEtaAnalysisESD");
128   fdNdEtaAnalysis->Finish(dNdEtaCorrection, 0.3, AlidNdEtaCorrection::kINEL, 1);
129   //fdNdEtaAnalysis->DrawHistograms(kTRUE);
130   TFile* file2 = TFile::Open(dataOutput, "RECREATE");
131   fdNdEtaAnalysis->SaveHistograms();
132
133   file->cd();
134   fdNdEtaAnalysis = new dNdEtaAnalysis("dndetaTr", "dndetaTr");
135   fdNdEtaAnalysis->LoadHistograms("fdNdEtaAnalysisESD");
136   fdNdEtaAnalysis->Finish(dNdEtaCorrection, 0.3, AlidNdEtaCorrection::kVertexReco, 1);
137   //fdNdEtaAnalysis->DrawHistograms(kTRUE);
138   file2->cd();
139   fdNdEtaAnalysis->SaveHistograms();
140
141   file->cd();
142   fdNdEtaAnalysis = new dNdEtaAnalysis("dndetaTrVtx", "dndetaTrVtx");
143   fdNdEtaAnalysis->LoadHistograms("fdNdEtaAnalysisESD");
144   fdNdEtaAnalysis->Finish(dNdEtaCorrection, 0.3, AlidNdEtaCorrection::kTrack2Particle, 1);
145   //fdNdEtaAnalysis->DrawHistograms(kTRUE);
146   file2->cd();
147   fdNdEtaAnalysis->SaveHistograms();
148
149   file->cd();
150   fdNdEtaAnalysis = new dNdEtaAnalysis("dndetaTracks", "dndetaTracks");
151   fdNdEtaAnalysis->LoadHistograms("fdNdEtaAnalysisESD");
152   fdNdEtaAnalysis->Finish(0, 0.3, AlidNdEtaCorrection::kNone, 1);
153   //fdNdEtaAnalysis->DrawHistograms(kTRUE);
154   file2->cd();
155   fdNdEtaAnalysis->SaveHistograms();
156
157   file2->Write();
158   file2->Close();
159 }
160
161 void* FinishAnalysis(const char* analysisFile = "analysis_esd_raw.root", const char* analysisDir = "fdNdEtaAnalysisESD", const char* correctionMapFile = "correction_map.root", const char* correctionMapFolder = "dndeta_correction", Bool_t useUncorrected = kFALSE, Bool_t simple = kFALSE)
162 {
163   loadlibs();
164
165   TFile* file = TFile::Open(analysisFile);
166
167   dNdEtaAnalysis* fdNdEtaAnalysis = new dNdEtaAnalysis(analysisDir, analysisDir);
168   fdNdEtaAnalysis->LoadHistograms();
169
170   if (correctionMapFile)
171   {
172     AlidNdEtaCorrection* dNdEtaCorrection = new AlidNdEtaCorrection(correctionMapFolder, correctionMapFolder);
173     TFile::Open(correctionMapFile);
174     dNdEtaCorrection->LoadHistograms();
175
176     fdNdEtaAnalysis->Finish(dNdEtaCorrection, 0.3, AlidNdEtaCorrection::kINEL);
177     //fdNdEtaAnalysis->Finish(dNdEtaCorrection, 0, AlidNdEtaCorrection::kINEL);
178     //fdNdEtaAnalysis->Finish(dNdEtaCorrection, 0, AlidNdEtaCorrection::kTrack2Particle);
179   }
180   else
181     fdNdEtaAnalysis->Finish(0, 0.3, AlidNdEtaCorrection::kNone);
182
183   fdNdEtaAnalysis->DrawHistograms(simple);
184
185   TH1* hist = fdNdEtaAnalysis->GetdNdEtaHistogram(1);
186   Int_t binLeft = hist->GetXaxis()->FindBin(-0.5);
187   Int_t binRight = hist->GetXaxis()->FindBin(0.5);
188   Float_t value1 = hist->Integral(binLeft, binRight);
189
190   hist = fdNdEtaAnalysis->GetdNdEtaHistogram(2);
191   Float_t value2 = hist->Integral(binLeft, binRight);
192
193   if (value2 > 0)
194     printf("Ratio is %f, values are %f %f\n", value1 / value2, value1, value2);
195
196   return fdNdEtaAnalysis;
197 }