#include "dNdEtaAnalysis.h"
#include <TFile.h>
+#include <TH3F.h>
#include <TH2F.h>
-#include <TH1D.h>
+#include <TH1F.h>
#include <TMath.h>
#include <TCanvas.h>
#include <TCollection.h>
#include <TIterator.h>
#include <TList.h>
#include <TLegend.h>
+#include <TLine.h>
+#include <TParameter.h>
-#include "dNdEtaCorrection.h"
+#include "AlidNdEtaCorrection.h"
+#include <AliCorrection.h>
+#include <AliPWG0Helper.h>
+#include <AliCorrectionMatrix2D.h>
+#include <AliCorrectionMatrix3D.h>
//____________________________________________________________________
ClassImp(dNdEtaAnalysis)
//____________________________________________________________________
-dNdEtaAnalysis::dNdEtaAnalysis(Char_t* name, Char_t* title) :
-TNamed(name, title)
+dNdEtaAnalysis::dNdEtaAnalysis() :
+ TNamed(),
+ fData(0),
+ fMult(0),
+ fPtDist(0),
+ fAnalysisMode(AliPWG0Helper::kInvalid),
+ fTag()
{
- hEtaVsVtx = new TH2F(Form("%s_eta_vs_vtx", name),"",80,-20,20,120,-6,6);
- hEtaVsVtx->SetXTitle("vtx z [cm]");
- hEtaVsVtx->SetYTitle("#eta");
+ // default constructor
- hEtaVsVtxUncorrected = dynamic_cast<TH2F*> (hEtaVsVtx->Clone(Form("%s_eta_vs_vtx_uncorrected", name)));
- hVtx = hEtaVsVtx->ProjectionX(Form("%s_vtx", name));
for (Int_t i=0; i<kVertexBinning; ++i)
{
- hdNdEta[i] = hEtaVsVtx->ProjectionY(Form("%s_dNdEta_%d", name, i));
- hdNdEta[i]->SetYTitle("dN/d#eta");
+ fdNdEta[i] = 0;
+ fdNdEtaPtCutOffCorrected[i] = 0;
}
+}
+
+//____________________________________________________________________
+dNdEtaAnalysis::dNdEtaAnalysis(const Char_t* name, const Char_t* title, AliPWG0Helper::AnalysisMode analysisMode) :
+ TNamed(name, title),
+ fData(0),
+ fMult(0),
+ fPtDist(0),
+ fAnalysisMode(analysisMode),
+ fTag()
+{
+ // constructor
+
+ fData = new AliCorrection("Analysis", Form("%s Analysis", title), analysisMode);
+
+ // do not add this hists to the directory
+ Bool_t oldStatus = TH1::AddDirectoryStatus();
+ TH1::AddDirectory(kFALSE);
+
+ fMult = new TH1F("TriggeredMultiplicity", "Triggered Events;raw multiplicity;entries", 1000, -0.5, 999.5);
+
+ TH1* histForBinning = fData->GetTrackCorrection()->GetGeneratedHistogram();
+ fdNdEta[0] = new TH1F("dNdEta", "dN_{ch}/d#eta;#eta;dN_{ch}/d#eta", histForBinning->GetNbinsY(), histForBinning->GetYaxis()->GetXbins()->GetArray());
+
+ fdNdEtaPtCutOffCorrected[0] = dynamic_cast<TH1F*> (fdNdEta[0]->Clone(Form("%s_corrected", fdNdEta[0]->GetName())));
+
+ for (Int_t i=1; i<kVertexBinning; ++i)
+ {
+ fdNdEta[i] = dynamic_cast<TH1F*> (fdNdEta[0]->Clone(Form("%s_%d", fdNdEta[0]->GetName(), i)));
+ fdNdEtaPtCutOffCorrected[i] = dynamic_cast<TH1F*> (fdNdEtaPtCutOffCorrected[0]->Clone(Form("%s_%d", fdNdEtaPtCutOffCorrected[0]->GetName(), i)));
+ }
+
+ fPtDist = new TH1F("Pt", "p_{T} distribution;p_{T} [GeV/c];#frac{dN}{d#eta dp_{T}} [c/GeV]", histForBinning->GetNbinsZ(), histForBinning->GetZaxis()->GetXbins()->GetArray());
+
+ TH1::AddDirectory(oldStatus);
+}
+
+//____________________________________________________________________
+dNdEtaAnalysis::~dNdEtaAnalysis()
+{
+ // destructor
+
+ if (fData)
+ {
+ delete fData;
+ fData = 0;
+ }
+
+ if (fMult)
+ {
+ delete fMult;
+ fMult = 0;
+ }
+
+ for (Int_t i=0; i<kVertexBinning; ++i)
+ {
+ if (fdNdEta[i])
+ {
+ delete fdNdEta[i];
+ fdNdEta[i] = 0;
+ }
+ if (fdNdEtaPtCutOffCorrected[i])
+ {
+ delete fdNdEtaPtCutOffCorrected[i];
+ fdNdEtaPtCutOffCorrected[i] = 0;
+ }
+ }
+
+ if (fPtDist)
+ {
+ delete fPtDist;
+ fPtDist = 0;
+ }
+}
+
+//_____________________________________________________________________________
+dNdEtaAnalysis::dNdEtaAnalysis(const dNdEtaAnalysis &c) :
+ TNamed(c),
+ fData(0),
+ fMult(0),
+ fPtDist(0),
+ fAnalysisMode(AliPWG0Helper::kInvalid),
+ fTag()
+{
+ //
+ // dNdEtaAnalysis copy constructor
+ //
+
+ ((dNdEtaAnalysis &) c).Copy(*this);
+}
+
+//_____________________________________________________________________________
+dNdEtaAnalysis &dNdEtaAnalysis::operator=(const dNdEtaAnalysis &c)
+{
+ //
+ // Assignment operator
+ //
+
+ if (this != &c) ((dNdEtaAnalysis &) c).Copy(*this);
+ return *this;
+}
+
+//_____________________________________________________________________________
+void dNdEtaAnalysis::Copy(TObject &c) const
+{
+ //
+ // Copy function
+ //
+
+ dNdEtaAnalysis& target = (dNdEtaAnalysis &) c;
+
+ target.fData = dynamic_cast<AliCorrection*> (fData->Clone());
+ target.fMult = dynamic_cast<TH1F*> (fMult->Clone());
+
+ for (Int_t i=0; i<kVertexBinning; ++i)
+ {
+ target.fdNdEta[i] = dynamic_cast<TH1F*> (fdNdEta[i]->Clone());
+ target.fdNdEtaPtCutOffCorrected[i] = dynamic_cast<TH1F*> (fdNdEtaPtCutOffCorrected[i]->Clone());
+ }
+
+ target.fPtDist = dynamic_cast<TH1F*> (fPtDist->Clone());
- hEtaVsVtx->Sumw2();
- hVtx->Sumw2();
+ target.fAnalysisMode = fAnalysisMode;
+ target.fTag = fTag;
+
+ TNamed::Copy((TNamed &) c);
}
//____________________________________________________________________
-void
-dNdEtaAnalysis::FillTrack(Float_t vtx, Float_t eta) {
- hEtaVsVtxUncorrected->Fill(vtx,eta);
+void dNdEtaAnalysis::FillTrack(Float_t vtx, Float_t eta, Float_t pt)
+{
+ // fills a track into the histograms
+
+ fData->GetTrackCorrection()->FillMeas(vtx, eta, pt);
+}
+
+//____________________________________________________________________
+void dNdEtaAnalysis::FillEvent(Float_t vtx, Float_t n)
+{
+ // fills an event into the histograms
+
+ fData->GetEventCorrection()->FillMeas(vtx, n);
}
//____________________________________________________________________
-void
-dNdEtaAnalysis::FillEvent(Float_t vtx) {
- hVtx->Fill(vtx);
+void dNdEtaAnalysis::FillTriggeredEvent(Float_t n)
+{
+ // fills a triggered event into the histograms
+
+ fMult->Fill(n);
}
//____________________________________________________________________
-void dNdEtaAnalysis::Finish(dNdEtaCorrection* correction)
+void dNdEtaAnalysis::Finish(AlidNdEtaCorrection* correction, Float_t ptCut, AlidNdEtaCorrection::CorrectionType correctionType, const char* tag)
{
- // correct with correction values if available
- // TODO what do we do with the error?
- if (!correction)
+ //
+ // correct with the given correction values and calculate dNdEta and pT distribution
+ // the corrections that are applied can be steered by the flag correctionType
+ // the measured result is not used up to a multiplicity of multCut (the bin at multCut is the first that is used!)
+ //
+
+ fTag.Form("Correcting dN/deta spectrum (data: %d) >>> %s <<<. Correction type: %d, pt cut: %.2f.", (Int_t) fAnalysisMode, tag, (Int_t) correctionType, ptCut);
+ Printf("\n\n%s", fTag.Data());
+
+ // set corrections to 1
+ fData->SetCorrectionToUnity();
+
+ if (correction && correctionType != AlidNdEtaCorrection::kNone)
+ {
+ TH3* trackCorr = fData->GetTrackCorrection()->GetCorrectionHistogram();
+ TH2* eventCorr = fData->GetEventCorrection()->GetCorrectionHistogram();
+
+ if (correctionType >= AlidNdEtaCorrection::kTrack2Particle)
+ trackCorr->Multiply(correction->GetTrack2ParticleCorrection()->GetTrackCorrection()->GetCorrectionHistogram());
+
+ if (correctionType >= AlidNdEtaCorrection::kVertexReco)
+ {
+ trackCorr->Multiply(correction->GetVertexRecoCorrection()->GetTrackCorrection()->GetCorrectionHistogram());
+ eventCorr->Multiply(correction->GetVertexRecoCorrection()->GetEventCorrection()->GetCorrectionHistogram());
+
+ // set bin with multiplicity 0 to unity (correction has no meaning in this bin)
+ for (Int_t i=0; i<=eventCorr->GetNbinsX()+1; i++)
+ eventCorr->SetBinContent(i, 1, 1);
+ }
+
+ switch (correctionType)
+ {
+ case AlidNdEtaCorrection::kINEL :
+ {
+ trackCorr->Multiply(correction->GetTriggerBiasCorrectionINEL()->GetTrackCorrection()->GetCorrectionHistogram());
+ eventCorr->Multiply(correction->GetTriggerBiasCorrectionINEL()->GetEventCorrection()->GetCorrectionHistogram());
+ break;
+ }
+ case AlidNdEtaCorrection::kNSD :
+ {
+ trackCorr->Multiply(correction->GetTriggerBiasCorrectionNSD()->GetTrackCorrection()->GetCorrectionHistogram());
+ eventCorr->Multiply(correction->GetTriggerBiasCorrectionNSD()->GetEventCorrection()->GetCorrectionHistogram());
+ break;
+ }
+ case AlidNdEtaCorrection::kND :
+ {
+ trackCorr->Multiply(correction->GetTriggerBiasCorrectionND()->GetTrackCorrection()->GetCorrectionHistogram());
+ eventCorr->Multiply(correction->GetTriggerBiasCorrectionND()->GetEventCorrection()->GetCorrectionHistogram());
+ break;
+ }
+ default : break;
+ }
+ }
+ else
printf("INFO: No correction applied\n");
- // this can be replaced by TH2F::Divide if we agree that the binning will be always the same
- for (Int_t iVtx=0; iVtx<=hEtaVsVtxUncorrected->GetNbinsX(); iVtx++)
+ TH2F* rawMeasured = (TH2F*) fData->GetEventCorrection()->GetMeasuredHistogram()->Clone("rawMeasured");
+
+ fData->Multiply();
+
+ if (correctionType >= AlidNdEtaCorrection::kVertexReco)
{
- for (Int_t iEta=0; iEta<=hEtaVsVtxUncorrected->GetNbinsY(); iEta++)
+ // There are no events with vertex that have 0 multiplicity, therefore
+ // populate bin with 0 multiplicity with the following idea:
+ // alpha = triggered events with vertex at a given vertex position / all triggered events with vertex
+ // triggered events without vertex and 0 multiplicity at a given vertex position = alpha * all triggered events with 0 multiplicity
+ // afterwards we still correct for the trigger efficiency
+
+ //TH2* measuredEvents = fData->GetEventCorrection()->GetMeasuredHistogram();
+ TH2* correctedEvents = fData->GetEventCorrection()->GetGeneratedHistogram();
+
+ TH2* eTrig = correction->GetVertexRecoCorrection()->GetEventCorrection()->GetGeneratedHistogram();
+ TH2* eTrigVtx = correction->GetVertexRecoCorrection()->GetEventCorrection()->GetMeasuredHistogram();
+ //TH1* eTrigVtx_projx = eTrigVtx->ProjectionX("eTrigVtx_projx", 2, rawMeasured->GetNbinsY()+1);
+ TH1* eTrigVtx_projx = eTrigVtx->ProjectionX("eTrigVtx_projx", 2, rawMeasured->GetNbinsY()+1);
+
+ //new TCanvas; correctedEvents->DrawCopy("TEXT");
+
+ // start above 0 mult. bin with integration
+ TH1* vertexDist = rawMeasured->ProjectionX("vertexdist_measured", 2, rawMeasured->GetNbinsY()+1);
+ //new TCanvas; vertexDist->DrawCopy();
+
+ Int_t allEventsWithVertex = (Int_t) vertexDist->Integral(0, vertexDist->GetNbinsX()+1); // include under/overflow!
+ Int_t triggeredEventsWith0Mult = (Int_t) fMult->GetBinContent(1);
+
+ Printf("%d triggered events with 0 mult. -- %d triggered events with vertex", triggeredEventsWith0Mult, allEventsWithVertex);
+
+ TH1* kineBias = (TH1*) vertexDist->Clone("kineBias");
+ kineBias->Reset();
+
+ for (Int_t i = 1; i <= rawMeasured->GetNbinsX(); i++)
{
- Float_t correctionValue = 1;
- if (correction)
- correctionValue = correction->GetCorrection(hEtaVsVtxUncorrected->GetXaxis()->GetBinCenter(iVtx), hEtaVsVtxUncorrected->GetYaxis()->GetBinCenter(iEta));
+ Double_t alpha = (Double_t) vertexDist->GetBinContent(i) / allEventsWithVertex;
+ Double_t events = alpha * triggeredEventsWith0Mult;
+
+ if (eTrigVtx_projx->GetBinContent(i) == 0)
+ continue;
+
+ Double_t fZ = eTrigVtx_projx->Integral(0, eTrigVtx_projx->GetNbinsX()+1) / eTrigVtx_projx->GetBinContent(i) *
+ eTrig->GetBinContent(i, 1) / eTrig->Integral(0, eTrig->GetNbinsX()+1, 1, 1);
+ kineBias->SetBinContent(i, fZ);
+
+ events *= fZ;
+
+ // multiply with trigger correction if set above
+ events *= fData->GetEventCorrection()->GetCorrectionHistogram()->GetBinContent(i, 1);
+
+ Printf("Bin %d, alpha is %.2f, fZ is %.3f, number of events with 0 mult.: %.2f", i, alpha * 100., fZ, events);
+
+ correctedEvents->SetBinContent(i, 1, events);
+ }
+
+ //new TCanvas; correctedEvents->DrawCopy("TEXT");
+ //new TCanvas; kineBias->DrawCopy();
+ }
+
+ fData->PrintInfo(ptCut);
+
+ TH3* dataHist = fData->GetTrackCorrection()->GetGeneratedHistogram();
+
+ // integrate multiplicity axis out (include under/overflow bins!!!)
+ TH2* tmp = fData->GetEventCorrection()->GetGeneratedHistogram();
+
+ TH1D* vertexHist = (TH1D*) tmp->ProjectionX("_px", 0, tmp->GetNbinsY() + 1, "e");
- Float_t value = hEtaVsVtxUncorrected->GetBinContent(iVtx, iEta);
- Float_t error = hEtaVsVtxUncorrected->GetBinError(iVtx, iEta);
+ // create pt hist
+ if (fAnalysisMode == AliPWG0Helper::kTPC || fAnalysisMode == AliPWG0Helper::kTPCITS)
+ {
+ // reset all ranges
+ dataHist->GetXaxis()->SetRange(0, 0);
+ dataHist->GetYaxis()->SetRange(0, 0);
+ dataHist->GetZaxis()->SetRange(0, 0);
+
+ // vtx cut
+ Int_t vertexBinBegin = dataHist->GetXaxis()->FindBin(-5);
+ Int_t vertexBinEnd = dataHist->GetXaxis()->FindBin(5);
+ dataHist->GetXaxis()->SetRange(vertexBinBegin, vertexBinEnd);
+ Float_t nEvents = vertexHist->Integral(vertexBinBegin, vertexBinEnd);
+
+ if (nEvents > 0)
+ {
+ // eta cut
+ dataHist->GetYaxis()->SetRange(dataHist->GetYaxis()->FindBin(-0.8), dataHist->GetYaxis()->FindBin(0.8));
+ Float_t etaWidth = 1.6;
- Float_t correctedValue = value * correctionValue;
- Float_t correctedError = error * correctionValue;
+ TH1D* ptHist = dynamic_cast<TH1D*> (dataHist->Project3D("ze"));
- if (correctedValue != 0)
+ for (Int_t i=1; i<=fPtDist->GetNbinsX(); ++i)
{
- hEtaVsVtx->SetBinContent(iVtx, iEta, correctedValue);
- hEtaVsVtx->SetBinError(iVtx, iEta, correctedError);
+ Float_t binSize = fPtDist->GetBinWidth(i);
+ fPtDist->SetBinContent(i, ptHist->GetBinContent(i) / binSize / nEvents / etaWidth);
+ fPtDist->SetBinError(i, ptHist->GetBinError(i) / binSize / nEvents / etaWidth);
}
+
+ delete ptHist;
}
+ else
+ printf("ERROR: nEvents is 0!\n");
+ }
+
+ // reset all ranges
+ dataHist->GetXaxis()->SetRange(0, 0);
+ dataHist->GetYaxis()->SetRange(0, 0);
+ dataHist->GetZaxis()->SetRange(0, 0);
+
+ // integrate over pt (with pt cut) (TPC, TPCITS) or multiplicity (SPD)
+ Int_t ptLowBin = 1;
+ if (ptCut > 0 && fAnalysisMode != AliPWG0Helper::kSPD)
+ ptLowBin = dataHist->GetZaxis()->FindBin(ptCut);
+
+ //new TCanvas; dataHist->DrawCopy();
+
+ //dataHist->Sumw2();
+ dataHist->GetZaxis()->SetRange(ptLowBin, dataHist->GetZaxis()->GetNbins()+1);
+ printf("pt/multiplicity range %d %d\n", ptLowBin, dataHist->GetZaxis()->GetNbins()+1);
+ TH2D* vtxVsEta = dynamic_cast<TH2D*> (dataHist->Project3D("yx2e"));
+
+ //new TCanvas; vtxVsEta->Draw("COLZ");
+
+ dataHist->GetZaxis()->SetRange(0, 0);
+ vtxVsEta->GetXaxis()->SetTitle(dataHist->GetXaxis()->GetTitle());
+ vtxVsEta->GetYaxis()->SetTitle(dataHist->GetYaxis()->GetTitle());
+
+ if (vtxVsEta == 0)
+ {
+ printf("ERROR: pt/multiplicity integration failed\n");
+ return;
+ }
+
+ //new TCanvas(tag, tag, 800, 600); vtxVsEta->DrawCopy("COLZ");
+
+ // clear result histograms
+ for (Int_t vertexPos=0; vertexPos<kVertexBinning; ++vertexPos)
+ {
+ fdNdEta[vertexPos]->Reset();
+ fdNdEtaPtCutOffCorrected[vertexPos]->Reset();
}
- for (Int_t iEta=0; iEta<=hEtaVsVtx->GetNbinsY(); iEta++)
+ const Float_t vertexRangeBegin[kVertexBinning] = { -9.99, -9.99, 0.01 };
+ const Float_t vertexRangeEnd[kVertexBinning] = { 9.99, -0.01, 9.99 };
+
+ for (Int_t iEta=1; iEta<=vtxVsEta->GetNbinsY(); iEta++)
{
- // do we have several histograms for different vertex positions?
- Int_t vertexBinWidth = hVtx->GetNbinsX() / (kVertexBinning-1);
+ // loop over vertex ranges
for (Int_t vertexPos=0; vertexPos<kVertexBinning; ++vertexPos)
{
- Int_t vertexBinBegin = 1;
- Int_t vertexBinEnd = hVtx->GetNbinsX() + 1;
+ Int_t vertexBinBegin = vertexHist->GetXaxis()->FindBin(vertexRangeBegin[vertexPos]);
+ Int_t vertexBinEnd = vertexHist->GetXaxis()->FindBin(vertexRangeEnd[vertexPos]);
- // the first histogram is always for the whole vertex range
- if (vertexPos > 0)
+ const Int_t *binBegin = 0;
+ const Int_t maxBins = 60;
+
+ // adjust acceptance range
+ // produce with drawPlots.C: DetermineAcceptance(...)
+ if (fAnalysisMode == AliPWG0Helper::kSPD)
{
- vertexBinBegin = 1 + vertexBinWidth * (vertexPos-1);
- vertexBinEnd = vertexBinBegin + vertexBinWidth;
+ //const Int_t binBeginSPD[30] = { 18, 16, 15, 14, 13, 13, 12, 11, 9, 7, 6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1 }; // by eye
+ //const Int_t binBeginSPD[30] = { -1, -1, -1, -1, 16, 14, 12, 10, 9, 7, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, -1, -1, -1, -1}; // limit in correction map is 5
+
+ //const Int_t binBegin[30] = { -1, -1, -1, 17, 15, 14, 12, 10, 8, 7, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, -1, -1, -1}; // limit in correction map is 10
+
+ //const Int_t binBeginSPD[30] = { -1, -1, -1, -1, 16, 15, 13, 11, 9, 8, 7, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, -1, -1, -1, -1}; // limit 2
+ const Int_t binBeginSPD[maxBins] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 15, 14, 13, 12, 11, 10, 9, 9, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}; //limit 5
+
+ binBegin = binBeginSPD;
}
+ else if (fAnalysisMode == AliPWG0Helper::kTPC)
+ {
+ //const Int_t binBeginTPC[30] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1}; // limit 5, pt cut off 0.2 mev/c
+ const Int_t binBeginTPC[maxBins] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}; // limit 5
- Float_t totalEvents = hVtx->Integral(vertexBinBegin, vertexBinEnd - 1);
- if (totalEvents == 0)
+ binBegin = binBeginTPC;
+ }
+ else if (fAnalysisMode == AliPWG0Helper::kTPCITS)
{
- printf("WARNING: No events for hist %d %d %d\n", vertexPos, vertexBinBegin, vertexBinEnd);
+ // TODO create map
+ }
+
+ Int_t vtxBegin = 1;
+ Int_t vtxEnd = maxBins;
+
+ if (binBegin)
+ {
+ vtxBegin = binBegin[iEta - 1];
+ vtxEnd = 18 + 1 - binBegin[maxBins - iEta];
+ }
+ else
+ Printf("WARNING: No acceptance applied!");
+
+ // eta range not accessible
+ if (vtxBegin == -1)
+ continue;
+
+ //Printf("%d %d | %d %d", vtxBegin, vertexHist->GetXaxis()->FindBin(GetVtxMin(eta)), vtxEnd, vertexHist->GetXaxis()->FindBin(-GetVtxMin(-eta)));
+ //vtxBegin = vertexHist->GetXaxis()->FindBin(GetVtxMin(eta));
+ //vtxEnd = vertexHist->GetXaxis()->FindBin(-GetVtxMin(-eta));
+
+ //Float_t eta = vtxVsEta->GetYaxis()->GetBinCenter(iEta);
+ //printf("Eta bin: %d (%f) Vertex range: %d; before: %d %d (range) %d %d (acceptance)", iEta, eta, vertexPos, vertexBinBegin, vertexBinEnd, vtxBegin, vtxEnd);
+ vertexBinBegin = TMath::Max(vertexBinBegin, vtxBegin);
+ vertexBinEnd = TMath::Min(vertexBinEnd, vtxEnd);
+ //Printf(" after: %d %d", vertexBinBegin, vertexBinEnd);
+
+ // no data for this bin
+ if (vertexBinBegin > vertexBinEnd)
+ {
+ //Printf("Bin empty. Skipped");
continue;
}
+ Float_t totalEvents = 0;
Float_t sum = 0;
Float_t sumError2 = 0;
- for (Int_t iVtx = vertexBinBegin; iVtx < vertexBinEnd; iVtx++)
+ Float_t unusedTracks = 0;
+ Float_t unusedEvents = 0;
+ for (Int_t iVtx = 1; iVtx <= vtxVsEta->GetNbinsX(); iVtx++)
{
- if (hEtaVsVtx->GetBinContent(iVtx, iEta) != 0)
+ if (iVtx >= vertexBinBegin && iVtx <= vertexBinEnd)
{
- sum = sum + hEtaVsVtx->GetBinContent(iVtx, iEta);
- sumError2 = sumError2 + TMath::Power(hEtaVsVtx->GetBinError(iVtx, iEta),2);
+ if (vtxVsEta->GetBinContent(iVtx, iEta) != 0)
+ {
+ sum += vtxVsEta->GetBinContent(iVtx, iEta);
+
+ if (sumError2 > 10e30)
+ Printf("WARNING: sum of error2 is dangerously large - be prepared for crash... ");
+
+ sumError2 = sumError2 + TMath::Power(vtxVsEta->GetBinError(iVtx, iEta),2);
+ }
+ totalEvents += vertexHist->GetBinContent(iVtx);
+ }
+ else
+ {
+ unusedTracks += vtxVsEta->GetBinContent(iVtx, iEta);
+ unusedEvents += vertexHist->GetBinContent(iVtx);
+ }
+ }
+
+ if (totalEvents == 0)
+ {
+ printf("WARNING: No events for hist %d %d %d\n", vertexPos, vertexBinBegin, vertexBinEnd);
+ continue;
+ }
+
+ Float_t ptCutOffCorrection = 1;
+
+ // find pt cut off correction factor
+ if (fAnalysisMode != AliPWG0Helper::kSPD)
+ {
+ if (correction && ptCut > 0)
+ ptCutOffCorrection = correction->GetMeasuredFraction(correctionType, ptCut, vtxVsEta->GetYaxis()->GetBinCenter(iEta), vertexBinBegin, vertexBinEnd);
+
+ if (ptCutOffCorrection <= 0)
+ {
+ printf("UNEXPECTED: ptCutOffCorrection is %f for hist %d %d %d\n", ptCutOffCorrection, vertexPos, vertexBinBegin, vertexBinEnd);
+ continue;
}
}
- Float_t dndeta = sum / totalEvents;
- Float_t error = TMath::Sqrt(sumError2) / totalEvents;
+ //printf("Eta: %d (%f) Vertex Range: %d %d, Event Count %f, Track Sum: %f, Track Sum corrected: %f \n", iEta, vtxVsEta->GetYaxis()->GetBinCenter(iEta), vertexBinBegin, vertexBinEnd, totalEvents, sum, sum / ptCutOffCorrection);
+
+ Int_t bin = fdNdEta[vertexPos]->FindBin(vtxVsEta->GetYaxis()->GetBinCenter(iEta));
+ if (bin > 0 && bin <= fdNdEta[vertexPos]->GetNbinsX())
+ {
+ Float_t dndeta = sum / totalEvents;
+ Float_t error = TMath::Sqrt(sumError2) / totalEvents;
+
+ dndeta = dndeta / fdNdEta[vertexPos]->GetBinWidth(bin);
+ error = error / fdNdEta[vertexPos]->GetBinWidth(bin);
+
+ fdNdEta[vertexPos]->SetBinContent(bin, dndeta);
+ fdNdEta[vertexPos]->SetBinError(bin, error);
- dndeta = dndeta/hdNdEta[vertexPos]->GetBinWidth(iEta);
- error = error/hdNdEta[vertexPos]->GetBinWidth(iEta);
+ dndeta /= ptCutOffCorrection;
+ error /= ptCutOffCorrection;
- hdNdEta[vertexPos]->SetBinContent(iEta, dndeta);
- hdNdEta[vertexPos]->SetBinError(iEta, error);
+ fdNdEtaPtCutOffCorrected[vertexPos]->SetBinContent(bin, dndeta);
+ fdNdEtaPtCutOffCorrected[vertexPos]->SetBinError(bin, error);
+
+ //Printf("Bin %d has dN/deta = %f +- %f; %.2f tracks %.2f events (outside acceptance: %.2f tracks, %.2f events)", bin, dndeta, error, sum, totalEvents, unusedTracks, unusedEvents);
+ }
}
}
}
//____________________________________________________________________
-void
-dNdEtaAnalysis::SaveHistograms() {
+Float_t dNdEtaAnalysis::GetVtxMin(Float_t eta)
+{
+ // helper function for the SPD acceptance
+ // the function returns the beginning of the acceptance window in z vertex position as function of eta
+ // to get the maximum: -GetVtxMin(-eta)
+
+ Float_t a[2] = { -15, 0 };
+ Float_t b[2] = { 0, -1.4 };
+ Float_t c[2] = { 15, -2.2 };
+
+ Float_t meanAB[2];
+ meanAB[0] = (b[0] + a[0]) / 2;
+ meanAB[1] = (b[1] + a[1]) / 2;
+
+ Float_t meanBC[2];
+ meanBC[0] = (c[0] + b[0]) / 2;
+ meanBC[1] = (c[1] + b[1]) / 2;
+
+ Float_t mAB = (b[1] - a[1]) / (b[0] - a[0]);
+ Float_t mBC = (c[1] - b[1]) / (c[0] - b[0]);
+
+ Float_t bAB = meanAB[1] - mAB * meanAB[0];
+ Float_t bBC = meanBC[1] - mBC * meanBC[0];
+
+ if (eta > b[1])
+ return 1.0 / mAB * eta - bAB / mAB;
+
+ return 1.0 / mBC * eta - bBC / mBC;
+}
+
+//____________________________________________________________________
+void dNdEtaAnalysis::SaveHistograms()
+{
+ // save the histograms to a directory with the name of this class (retrieved from TNamed)
gDirectory->mkdir(GetName());
gDirectory->cd(GetName());
- hEtaVsVtx ->Write();
- hEtaVsVtxUncorrected->Write();
- hVtx ->Write();
+ if (fData)
+ {
+ fData->SaveHistograms();
+ }
+ else
+ printf("dNdEtaAnalysis::SaveHistograms: UNEXPECTED: fData is 0\n");
+
+ if (fMult)
+ {
+ fMult->Write();
+ }
+ else
+ printf("dNdEtaAnalysis::SaveHistograms: UNEXPECTED: fMult is 0\n");
+
+ if (fPtDist)
+ fPtDist ->Write();
+ else
+ printf("dNdEtaAnalysis::SaveHistograms: UNEXPECTED: fPtDist is 0\n");
+
for (Int_t i=0; i<kVertexBinning; ++i)
- hdNdEta[i] ->Write();
+ {
+ if (fdNdEta[i])
+ fdNdEta[i]->Write();
+ else
+ printf("dNdEtaAnalysis::SaveHistograms: UNEXPECTED: fdNdEta[%d] is 0\n", i);
+
+ if (fdNdEtaPtCutOffCorrected[i])
+ fdNdEtaPtCutOffCorrected[i]->Write();
+ else
+ printf("dNdEtaAnalysis::SaveHistograms: UNEXPECTED: fdNdEtaPtCutOffCorrected[%d] is 0\n", i);
+ }
+
+ TNamed named("fTag", fTag.Data());
+ named.Write();
+
+ TParameter<Int_t> param("fAnalysisMode", fAnalysisMode);
+ param.Write();
gDirectory->cd("../");
}
-void dNdEtaAnalysis::LoadHistograms()
+void dNdEtaAnalysis::LoadHistograms(const Char_t* dir)
{
- gDirectory->cd(GetName());
+ // loads the histograms from a directory with the name of this class (retrieved from TNamed)
+
+ if (!dir)
+ dir = GetName();
- hEtaVsVtx = dynamic_cast<TH2F*> (gDirectory->Get(hEtaVsVtx->GetName()));
- hEtaVsVtxUncorrected = dynamic_cast<TH2F*> (gDirectory->Get(hEtaVsVtxUncorrected->GetName()));
+ gDirectory->cd(dir);
- hVtx = dynamic_cast<TH1D*> (gDirectory->Get(hVtx->GetName()));
+ fData->LoadHistograms();
+ fMult = dynamic_cast<TH1F*> (gDirectory->Get(fMult->GetName()));
for (Int_t i=0; i<kVertexBinning; ++i)
- hdNdEta[i] = dynamic_cast<TH1D*> (gDirectory->Get(hdNdEta[i]->GetName()));
+ {
+ fdNdEta[i] = dynamic_cast<TH1F*> (gDirectory->Get(fdNdEta[i]->GetName()));
+ fdNdEtaPtCutOffCorrected[i] = dynamic_cast<TH1F*> (gDirectory->Get(fdNdEtaPtCutOffCorrected[i]->GetName()));
+ }
+
+ fPtDist = dynamic_cast<TH1F*> (gDirectory->Get(fPtDist->GetName()));
+
+ if (dynamic_cast<TNamed*> (gDirectory->Get("fTag")))
+ fTag = (dynamic_cast<TNamed*> (gDirectory->Get("fTag")))->GetTitle();
+
+ if (dynamic_cast<TParameter<Int_t>*> (gDirectory->Get("fAnalysisMode")))
+ fAnalysisMode = (AliPWG0Helper::AnalysisMode) (dynamic_cast<TParameter<Int_t>*> (gDirectory->Get("fAnalysisMode")))->GetVal();
gDirectory->cd("../");
}
//____________________________________________________________________
-void dNdEtaAnalysis::DrawHistograms()
+void dNdEtaAnalysis::DrawHistograms(Bool_t simple)
{
- TCanvas* canvas = new TCanvas("dNdEtaAnalysis", "dNdEtaAnalysis", 800, 800);
- canvas->Divide(2, 2);
+ // draws the histograms
- canvas->cd(1);
- if (hEtaVsVtx)
- hEtaVsVtx->Draw("COLZ");
+ if (!simple)
+ {
+ if (fData)
+ fData->DrawHistograms(GetName());
- canvas->cd(2);
- if (hEtaVsVtxUncorrected)
- hEtaVsVtxUncorrected->Draw("COLZ");
+ TCanvas* canvas = new TCanvas(Form("%s_dNdEtaAnalysis", GetName()), Form("%s_dNdEtaAnalysis", GetName()), 800, 400);
+ canvas->Divide(2, 1);
- canvas->cd(3);
- if (hVtx)
- hVtx->Draw();
+ canvas->cd(1);
+ if (fdNdEtaPtCutOffCorrected[0])
+ fdNdEtaPtCutOffCorrected[0]->DrawCopy();
- canvas->cd(4);
- if (hdNdEta[0])
- hdNdEta[0]->Draw();
+ if (fdNdEta[0])
+ {
+ fdNdEta[0]->SetLineColor(kRed);
+ fdNdEta[0]->DrawCopy("SAME");
+ }
+
+ canvas->cd(2);
+ if (fPtDist)
+ fPtDist->DrawCopy();
+ }
// histograms for different vertices?
if (kVertexBinning > 0)
{
// doesnt work, but i dont get it, giving up...
- /*TCanvas* canvas2 =*/ new TCanvas("dNdEtaAnalysisVtx", "dNdEtaAnalysisVtx", 450, 450);
+ TCanvas* canvas2 = new TCanvas(Form("%s_dNdEtaAnalysisVtx", GetName()), Form("%s_dNdEtaAnalysisVtx", GetName()), 450, 450);
+ TCanvas* canvas3 = 0;
+ if (!simple)
+ canvas3 = new TCanvas(Form("%s_dNdEtaAnalysisVtx_noptcutoff", GetName()), Form("%s_dNdEtaAnalysisVtx_noptcutoff", GetName()), 450, 450);
+
//Int_t yPads = (Int_t) TMath::Ceil(((Double_t) kVertexBinning - 1) / 2);
//printf("%d\n", yPads);
//canvas2->Divide(2, yPads);
- TLegend* legend = new TLegend(0.7, 0.7, 0.9, 0.9);
+ TLegend* legend = new TLegend(0.4, 0.2, 0.6, 0.4);
for (Int_t i=0; i<kVertexBinning; ++i)
{
- //canvas2->cd(i-1);
- //printf("%d\n", i);
- if (hdNdEta[i])
+ if (fdNdEtaPtCutOffCorrected[i])
{
- hdNdEta[i]->SetLineColor(i+1);
- hdNdEta[i]->Draw((i == 0) ? "" : "SAME");
- legend->AddEntry(hdNdEta[i], (i == 0) ? "Vtx All" : Form("Vtx Bin %d", i-1));
+ canvas2->cd();
+
+ fdNdEtaPtCutOffCorrected[i]->SetLineColor(i+1);
+ fdNdEtaPtCutOffCorrected[i]->DrawCopy((i == 0) ? "" : "SAME");
+ legend->AddEntry(fdNdEtaPtCutOffCorrected[i], (i == 0) ? "Vtx All" : Form("Vtx Bin %d", i-1));
+ }
+ if (canvas3 && fdNdEta[i])
+ {
+ canvas3->cd();
+
+ fdNdEta[i]->SetLineColor(i+1);
+ fdNdEta[i]->DrawCopy((i == 0) ? "" : "SAME");
}
}
+ canvas2->cd();
legend->Draw();
+ canvas2->SaveAs(Form("%s_%s.gif", canvas2->GetName(), GetName()));
+
+ if (canvas3)
+ {
+ canvas3->cd();
+ legend->Draw();
+ }
}
+
+ if (kVertexBinning == 3)
+ {
+ TH1* clone = dynamic_cast<TH1*> (fdNdEtaPtCutOffCorrected[1]->Clone("clone"));
+ TH1* clone2 = dynamic_cast<TH1*> (fdNdEtaPtCutOffCorrected[2]->Clone("clone2"));
+
+ if (clone && clone2)
+ {
+ TCanvas* canvas4 = new TCanvas(Form("%s_dNdEtaAnalysisVtxRatios", GetName()), Form("%s_dNdEtaAnalysisVtxRatios", GetName()), 450, 450);
+
+ clone->Divide(fdNdEtaPtCutOffCorrected[0]);
+ clone->GetYaxis()->SetRangeUser(0.95, 1.05);
+ clone->DrawCopy();
+
+ clone2->Divide(fdNdEtaPtCutOffCorrected[0]);
+ clone2->DrawCopy("SAME");
+
+ TLine* line = new TLine(-1, 1, 1, 1);
+ line->Draw();
+
+ canvas4->SaveAs(Form("%s_%s.gif", canvas4->GetName(), GetName()));
+ }
+ }
}
Long64_t dNdEtaAnalysis::Merge(TCollection* list)
TObject* obj;
// sub collections
- const Int_t nCollections = kVertexBinning + 3;
+ const Int_t nCollections = 2 * kVertexBinning + 3; // 3 standalone hists, 3 arrays of size kVertexBinning
TList* collections[nCollections];
for (Int_t i=0; i<nCollections; ++i)
collections[i] = new TList;
if (entry == 0)
continue;
- collections[0]->Add(entry->hEtaVsVtx);
- collections[1]->Add(entry->hEtaVsVtxUncorrected);
- collections[2]->Add(entry->hVtx);
+ collections[0]->Add(entry->fData);
+ collections[1]->Add(entry->fMult);
+ collections[2]->Add(entry->fPtDist);
for (Int_t i=0; i<kVertexBinning; ++i)
- collections[3+i]->Add(entry->hdNdEta[i]);
+ {
+ collections[3+i]->Add(entry->fdNdEta[i]);
+ collections[3+kVertexBinning+i]->Add(entry->fdNdEtaPtCutOffCorrected[i]);
+ }
++count;
}
- hEtaVsVtx->Merge(collections[0]);
- hEtaVsVtxUncorrected->Merge(collections[1]);
- hVtx->Merge(collections[2]);
+ fData->Merge(collections[0]);
+ fMult->Merge(collections[1]);
+ fPtDist->Merge(collections[2]);
+
for (Int_t i=0; i<kVertexBinning; ++i)
- hdNdEta[i]->Merge(collections[3+i]);
+ {
+ fdNdEta[i]->Merge(collections[3+i]);
+ fdNdEtaPtCutOffCorrected[i]->Merge(collections[3+kVertexBinning+i]);
+ }
for (Int_t i=0; i<nCollections; ++i)
delete collections[i];
return count+1;
}
+
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff