- fixing mistake
[u/mrichter/AliRoot.git] / PWG0 / AliCorrection.cxx
index d19eca3..ba411f0 100644 (file)
@@ -9,7 +9,9 @@
 
 #include <TFile.h>
 #include <TCanvas.h>
+#include <TH3F.h>
 #include <TH2F.h>
+#include <TMath.h>
 
 #include <AliLog.h>
 #include "AliCorrectionMatrix2D.h"
@@ -29,22 +31,97 @@ AliCorrection::AliCorrection() : TNamed(),
 }
 
 //____________________________________________________________________
-AliCorrection::AliCorrection(const Char_t* name, const Char_t* title) : TNamed(name, title),
+AliCorrection::AliCorrection(const Char_t* name, const Char_t* title, AliPWG0Helper::AnalysisMode analysisMode) : TNamed(name, title),
   fEventCorr(0),
   fTrackCorr(0)
 {
   // constructor initializing tnamed
 
-  Float_t binLimitsPt[] = {0.0, 0.05, 0.1, 0.125, 0.15, 0.175, 0.2, 0.225, 0.25, 0.275, 0.3, 0.325, 0.35, 0.375, 0.4, 0.425, 0.45, 0.475, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.5, 2.0, 5.0, 10.0, 100.0};
+  Float_t* binLimitsPt = 0;
+  Int_t nBinsPt = 0;
+
+  // different binnings, better solution could be anticipated...
+  if ((analysisMode & AliPWG0Helper::kTPC || analysisMode & AliPWG0Helper::kTPCITS) && (analysisMode & AliPWG0Helper::kFieldOn))
+  {
+    static Float_t binLimitsPtTmp[] = {0.0, 0.05, 0.1, 0.125, 0.15, 0.175, 0.2, 0.225, 0.25, 0.275, 0.3, 0.325, 0.35, 0.375, 0.4, 0.425, 0.45, 0.475, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.5, 2.0, 5.0, 10.0, 100.0};
+    //static Float_t binLimitsPtTmp[] = {0.0, 0.05, 0.1, 0.125, 0.15, 0.175, 0.2, 0.225, 0.25, 0.275, 0.3, 0.325, 0.35, 0.375, 0.4, 0.425, 0.45, 0.475, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 2.0, 5.0, 10.0, 100.0};
+    binLimitsPt = (Float_t*) binLimitsPtTmp;
+    nBinsPt = 28;
+  }
+  else if (analysisMode & AliPWG0Helper::kSPD || !(analysisMode & AliPWG0Helper::kFieldOn))
+  {
+    static Float_t binLimitsPtTmp[] = {-0.5, 100.0};
+    binLimitsPt = (Float_t*) binLimitsPtTmp;
+    nBinsPt = 1;
+  }
+
+  if (!binLimitsPt)
+  {
+    Printf("FATAL: Invalid binning");
+    return;
+  }
+
+  // third axis for track histogram
+  Int_t nBinsN2 = 1;
+  Float_t binLimitsN2[]   = {-0.5, 1000};
+  const char* title3 = "Ntracks";
+  
+  //Int_t nBinsN2 = 21;
+  //Float_t binLimitsN2[]   = {-0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 12.5, 14.5, 16.5, 18.5, 20.5, 25.5, 30.5, 40.5, 50.5, 100.5, 1000.5};
+  
+  // phi
+  //Int_t nBinsN2 = 36;
+  //Float_t binLimitsN2[]   = {0.000, 0.175, 0.349, 0.524, 0.698, 0.873, 1.047, 1.222, 1.396, 1.571, 1.745, 1.920, 2.094, 2.269, 2.443, 2.618, 2.793, 2.967, 3.142, 3.316, 3.491, 3.665, 3.840, 4.014, 4.189, 4.363, 4.538, 4.712, 4.887, 5.061, 5.236, 5.411, 5.585, 5.760, 5.934, 6.109, TMath::Pi() * 2};
+  //const char* title3 = "#phi";
+
+  // mult axis for event histogram
+  Int_t nBinsN = 22;
   Float_t binLimitsN[]   = {-0.5, 0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 12.5, 14.5, 16.5, 18.5, 20.5, 25.5, 30.5, 40.5, 50.5, 100.5, 300.5};
+  //Int_t nBinsN = 52;
+  //Float_t binLimitsN[]   = {-0.5, 0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 11.5, 12.5, 13.5, 14.5, 15.5, 16.5, 17.5, 18.5, 19.5, 20.5, 21.5, 22.5, 23.5, 24.5, 25.5, 26.5, 27.5, 28.5, 29.5, 30.5, 31.5, 32.5, 33.5, 34.5, 35.5, 36.5, 37.5, 38.5, 39.5, 40.5, 41.5, 42.5, 43.5, 44.5, 45.5, 46.5, 47.5, 48.5, 49.5, 50.5, 100.5, 300.5};
+
   //Float_t binLimitsVtx[] = {-20,-15,-10,-6,-3,0,3,6,10,15,20};
-  Float_t binLimitsVtx[] = {-20,-19,-18,-17,-16,-15,-14,-13,-12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
+  //Float_t binLimitsVtx[] = {-20,-19,-18,-17,-16,-15,-14,-13,-12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
+  Float_t binLimitsVtx[] = {-30,-25,-20,-15,-10,-8,-6,-4,-2,0,2,4,6,8,10,15,20,25,30};
+  /*Float_t binLimitsEta[] = {-3.0,-2.8,-2.6,-2.4,-2.2,
+                            -2.0,-1.8,-1.6,-1.4,-1.2,
+                            -1.0,-0.8,-0.6,-0.4,-0.2, 0.0,
+                             0.2, 0.4, 0.6, 0.8, 1.0,
+                             1.2, 1.4, 1.6, 1.8, 2.0,
+                             2.2, 2.4, 2.6, 2.8, 3.0};*/
+  //Float_t binLimitsEta[] = { -3.0, -2.9, -2.8, -2.7, -2.6, -2.5, -2.4, -2.3, -2.2, -2.1, -2.0, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4, -1.3, -1.2, -1.1, -1.0, -0.9, -0.8, -0.7, -0.6, -0.5, -0.4, -0.3, -0.2, -0.1, -0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0 };
+  /*Float_t binLimitsEta[] = {-3,-2.75,-2.5,-2.25,-2.0,
+                            -1.75,-1.5,-1.25,
+                            -1,-0.75,-0.5,-0.25,
+                            0,0.25,0.5,0.75,
+                            1.0,1.25,1.5,1.75,
+                            2.0,2.25,2.5,2.75,3.0}; */
+  Float_t binLimitsEta[] = {-2.8,-2.4,-2,-1.6,-1.2,-0.8,-0.4,0,0.4,0.8,1.2,1.6,2.0,2.4,2.8}; 
+  //Float_t binLimitsEta[] = {-2.8,-2.4,-2,-1.6,-1.2,-0.8,-0.5,0,0.5,0.8,1.2,1.6,2.0,2.4,2.8}; 
+
+  //Float_t binLimitsEta[] = {-3,-2.6,-2.2,-1.8,-1.4,-1,-0.6,-0.2,0.2,0.6,1,1.4,1.8,2.2,2.6,3.0};
+//  Float_t binLimitsEta[] = {-2,-1.9,-1.8,-1.7,-1.6,-1.5,-1.4,-1.3,-1.2,-1.1,-1.0,-0.9,-0.8,-0.7,-0.6,-0.5,-0.4,-0.3,-0.2,-0.1,0.0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0};
+//  Float_t binLimitsEta[] = { -7.0, -6.9, -6.8, -6.7, -6.6, -6.5, -6.4, -6.3, -6.2, -6.1, -6.0, -5.9, -5.8, -5.7, -5.6, -5.5, -5.4, -5.3, -5.2, -5.1, -5.0, -4.9, -4.8, -4.7, -4.6, -4.5, -4.4, -4.3, -4.2, -4.1, -4.0, -3.9, -3.8, -3.7, -3.6, -3.5, -3.4, -3.3, -3.2, -3.1, -3.0, -2.9, -2.8, -2.7, -2.6, -2.5, -2.4, -2.3, -2.2, -2.1, -2.0, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4, -1.3, -1.2, -1.1, -1.0, -0.9, -0.8, -0.7, -0.6, -0.5, -0.4, -0.3, -0.2, -0.1, -0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0 };
+
+  fEventCorr = new AliCorrectionMatrix2D("EventCorrection", Form("%s EventCorrection", fTitle.Data()), 18, binLimitsVtx, nBinsN, binLimitsN);
+
+  if (analysisMode & AliPWG0Helper::kSPD)
+  {
+    TH3F* dummyBinning = new TH3F("dummyBinning","dummyBinning",18, binLimitsVtx, 14, binLimitsEta, nBinsN2, binLimitsN2);
+    fTrackCorr = new AliCorrectionMatrix3D("TrackCorrection", Form("%s TrackCorrection", fTitle.Data()), dummyBinning);
+    fTrackCorr->SetAxisTitles("vtx-z (cm)", "#eta", title3);
+    delete dummyBinning;
+  }
+  else
+  {
+    TH3F* dummyBinning = new TH3F("dummyBinning","dummyBinning",18, binLimitsVtx, 14, binLimitsEta , nBinsPt, binLimitsPt);
+    fTrackCorr = new AliCorrectionMatrix3D("TrackCorrection", Form("%s TrackCorrection", fTitle.Data()), dummyBinning);
+    fTrackCorr->SetAxisTitles("vtx-z (cm)", "#eta", "p_{T} (GeV/c)");
+    delete dummyBinning;
+  }
 
-  fEventCorr = new AliCorrectionMatrix2D("EventCorrection", Form("%s EventCorrection", title), 40, binLimitsVtx, 22, binLimitsN);
-  fTrackCorr = new AliCorrectionMatrix3D("TrackCorrection", Form("%s TrackCorrection", title), 40, -20, 20, 20, -2, 2, 28, binLimitsPt);
 
-  fEventCorr->SetAxisTitles("vtx z [cm]", "Ntracks");
-  fTrackCorr->SetAxisTitles("vtx z [cm]", "#eta", "p_{T} [GeV/c]");
+  fEventCorr->SetAxisTitles("vtx-z (cm)", "Ntracks");
 }
 
 //____________________________________________________________________
@@ -155,11 +232,23 @@ void AliCorrection::Divide()
   fEventCorr->Divide();
   fTrackCorr->Divide();
 
-  Int_t emptyBins = fTrackCorr->CheckEmptyBins(-9.99, 9.99, -0.79, 0.79, 0.3, 9.9);
+  Int_t emptyBins = fTrackCorr->CheckEmptyBins(-9.99, 9.99, -0.79, 0.79, 0.2, 4.9);
   printf("INFO: In the central region the track correction of %s has %d empty bins\n", GetName(), emptyBins);
 }
 
 //____________________________________________________________________
+void AliCorrection::Add(AliCorrection* aCorrectionToAdd, Float_t c)
+{
+  //
+  // add to measured and generated the measured and generated of aCorrectionToAdd
+  // with the weight c
+
+  fEventCorr->Add(aCorrectionToAdd->GetEventCorrection(),c);
+  fTrackCorr->Add(aCorrectionToAdd->GetTrackCorrection(),c);
+}
+
+
+//____________________________________________________________________
 Bool_t AliCorrection::LoadHistograms(const Char_t* dir)
 {
   //
@@ -243,6 +332,51 @@ void AliCorrection::DrawHistograms(const Char_t* name)
     fTrackCorr->DrawHistograms(Form("%s track", name));
 }
 
+void AliCorrection::DrawOverview(const char* canvasName)
+{
+  // draw projection of the corrections
+  //   to the 3 axis of fTrackCorr and 2 axis of fEventCorr
+
+  TString canvasNameTmp(GetName());
+  if (canvasName)
+    canvasNameTmp = canvasName;
+
+  TCanvas* canvas = new TCanvas(canvasNameTmp, canvasNameTmp, 1200, 1200);
+  canvas->Divide(3, 3);
+
+  if (fTrackCorr) {
+    canvas->cd(1);
+    fTrackCorr->Get2DCorrectionHistogram("xy", 0, 0)->DrawCopy("COLZ")->GetZaxis()->SetRangeUser(0, 10);
+    
+    canvas->cd(2);
+    fTrackCorr->Get2DCorrectionHistogram("yz", 0, 0)->DrawCopy("COLZ")->GetZaxis()->SetRangeUser(0, 10);
+    
+    canvas->cd(3);
+    fTrackCorr->Get2DCorrectionHistogram("zx", 0, 0)->DrawCopy("COLZ")->GetZaxis()->SetRangeUser(0, 10);
+    
+    canvas->cd(4);
+    fTrackCorr->Get1DCorrectionHistogram("x", 0.3, 5, -1, 1)->DrawCopy()->GetYaxis()->SetRangeUser(0, 10);
+
+    canvas->cd(5);
+    fTrackCorr->Get1DCorrectionHistogram("y", 0.3, 5, 0, 0)->DrawCopy()->GetYaxis()->SetRangeUser(0, 10);
+
+    canvas->cd(6);
+    fTrackCorr->Get1DCorrectionHistogram("z", 0, -1, -1, 1)->DrawCopy()->GetYaxis()->SetRangeUser(0, 10);
+  }
+
+  if (fEventCorr)
+  {
+    canvas->cd(7);
+    fEventCorr->GetCorrectionHistogram()->DrawCopy("COLZ")->GetYaxis()->SetRangeUser(0, 30);
+    
+    canvas->cd(8);
+    fEventCorr->Get1DCorrectionHistogram("x")->DrawCopy();
+
+    canvas->cd(9);
+    fEventCorr->Get1DCorrectionHistogram("y")->DrawCopy()->GetXaxis()->SetRangeUser(0, 30);
+  }
+}
+
 //____________________________________________________________________
 void AliCorrection::SetCorrectionToUnity()
 {
@@ -264,7 +398,7 @@ void AliCorrection::Multiply()
   {
     fEventCorr->Multiply();
     // now we manually copy the overflow bin of the y axis (multiplicity) over. This is important to get the event count correct
-    TH2F* hist = fEventCorr->GetMeasuredHistogram();
+    TH2* hist = fEventCorr->GetMeasuredHistogram();
     for (Int_t x = 1; x <= hist->GetNbinsX(); ++x)
       fEventCorr->GetGeneratedHistogram()->SetBinContent(x, hist->GetNbinsY() + 1, hist->GetBinContent(x, hist->GetNbinsY() + 1));
   }
@@ -272,3 +406,83 @@ void AliCorrection::Multiply()
   if (fTrackCorr)
     fTrackCorr->Multiply();
 }
+
+//____________________________________________________________________
+void AliCorrection::Scale(Double_t factor)
+{
+  // scales the two contained corrections
+
+  fEventCorr->Scale(factor);
+  fTrackCorr->Scale(factor);
+}
+
+//____________________________________________________________________
+void AliCorrection::PrintStats(Float_t zRange, Float_t etaRange, Float_t ptCut)
+{
+  // prints statistics and effective correction factors
+
+  Printf("AliCorrection::PrintInfo: Values in |eta| < %.2f, |vtx-z| < %.2f and pt > %.2f:", etaRange, zRange, ptCut);
+
+  // prevent to be on bin border
+  zRange -= 0.1;
+  etaRange -= 0.1;
+
+  TH3* measured = GetTrackCorrection()->GetMeasuredHistogram();
+  TH3* generated = GetTrackCorrection()->GetGeneratedHistogram();
+
+  TH2* measuredEvents = GetEventCorrection()->GetMeasuredHistogram();
+  TH2* generatedEvents = GetEventCorrection()->GetGeneratedHistogram();
+
+  Float_t tracksM = measured->Integral(measured->GetXaxis()->FindBin(-zRange), measured->GetXaxis()->FindBin(zRange), measured->GetYaxis()->FindBin(-etaRange), measured->GetYaxis()->FindBin(etaRange), measured->GetZaxis()->FindBin(ptCut), measured->GetZaxis()->GetNbins());
+  Float_t tracksG = generated->Integral(generated->GetXaxis()->FindBin(-zRange), generated->GetXaxis()->FindBin(zRange), generated->GetYaxis()->FindBin(-etaRange), generated->GetYaxis()->FindBin(etaRange), generated->GetZaxis()->FindBin(ptCut), generated->GetZaxis()->GetNbins());
+
+  Float_t eventsM = measuredEvents->Integral(measuredEvents->GetXaxis()->FindBin(-zRange), measuredEvents->GetXaxis()->FindBin(zRange), 1, measuredEvents->GetNbinsY());
+  Float_t eventsG = generatedEvents->Integral(generatedEvents->GetXaxis()->FindBin(-zRange), generatedEvents->GetXaxis()->FindBin(zRange), 1, generatedEvents->GetNbinsY());
+
+  Printf("tracks measured: %.1f tracks generated: %.1f, events measured: %.1f, events generated %.1f", tracksM, tracksG, eventsM, eventsG);
+
+  if (tracksM > 0)
+    Printf("Effective average correction factor for TRACKS: %.3f", tracksG / tracksM);
+  if (eventsM > 0)
+    Printf("Effective average correction factor for EVENTS: %.3f", eventsG / eventsM);
+
+  if (eventsM > 0 && eventsG > 0)
+  {
+    // normalize to number of events;
+    tracksM /= eventsM;
+    tracksG /= eventsG;
+
+    Printf("%.2f tracks/event measured, %.2f tracks/event after correction --> effective average correction factor is %.3f (pt cut %.2f GeV/c)", tracksM, tracksG, (tracksM > 0) ? (tracksG / tracksM) : -1, ptCut);
+  }
+}
+
+//____________________________________________________________________
+void AliCorrection::PrintInfo(Float_t ptCut)
+{
+  // prints some stats
+
+  TH3* measured = GetTrackCorrection()->GetMeasuredHistogram();
+  TH3* generated = GetTrackCorrection()->GetGeneratedHistogram();
+
+  TH2* measuredEvents = GetEventCorrection()->GetMeasuredHistogram();
+  TH2* generatedEvents = GetEventCorrection()->GetGeneratedHistogram();
+
+  Printf("AliCorrection::PrintInfo: Whole phasespace:");
+
+  Printf("tracks measured: %.1f tracks generated: %.1f, events measured: %.1f, events generated %.1f", measured->Integral(), generated->Integral(), measuredEvents->Integral(), generatedEvents->Integral());
+
+  Printf("Example centered bin: tracks measured: %.1f tracks generated: %.1f, events measured: %.1f, events generated %.1f", measured->GetBinContent(measured->GetNbinsX() / 2, measured->GetNbinsY() / 2, measured->GetNbinsZ() / 2), generated->GetBinContent(measured->GetNbinsX() / 2, measured->GetNbinsY() / 2, measured->GetNbinsZ() / 2), measuredEvents->GetBinContent(measuredEvents->GetNbinsX() / 2, measuredEvents->GetNbinsY() / 2), generatedEvents->GetBinContent(measuredEvents->GetNbinsX() / 2, measuredEvents->GetNbinsY() / 2));
+
+  PrintStats(10, 0.6, ptCut);
+  PrintStats(10, 0.8, ptCut);
+  PrintStats(10, 1.5, ptCut);
+}
+
+//____________________________________________________________________
+void AliCorrection::ResetErrorsOnCorrections()
+{
+  // resets the errors in the correction matrix
+  
+  fEventCorr->ResetErrorsOnCorrections();
+  fTrackCorr->ResetErrorsOnCorrections();  
+}