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PlotEfficiency.C
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// Plotting of reconstruction efficiency
#include "utils_plot.h"
Int_t PlotEfficiency(TString pathFile = "AnalysisResults.root", TString particles = "d0")
{
gStyle->SetOptStat(0);
gStyle->SetPalette(0);
gStyle->SetCanvasColor(0);
gStyle->SetFrameFillColor(0);
// vertical margins of the pT spectra plot
float marginHigh = 0.05;
float marginLow = 0.05;
bool logScaleH = true;
// vertical margins of the efficiency plot
float marginRHigh = 0.05;
float marginRLow = 0.05;
bool logScaleR = false;
double yMin, yMax;
int nRec, nGen;
int colours[] = {1, 2, 4};
int markers[] = {24, 25, 46};
// binning
Int_t iNRebin = 4;
//Double_t* dRebin = nullptr;
//const Int_t NRebin = 1;
Double_t dRebin[] = {0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10};
const Int_t NRebin = sizeof(dRebin) / sizeof(dRebin[0]) - 1;
TFile* file = new TFile(pathFile.Data());
if (file->IsZombie()) {
Printf("Error: Failed to open file %s", pathFile.Data());
return 1;
}
// get list of particles
TObjArray* arrayParticle = 0;
arrayParticle = particles.Tokenize(" ");
TString particle = "";
// loop over particles
for (int iP = 0; iP < arrayParticle->GetEntriesFast(); iP++) {
particle = ((TObjString*)(arrayParticle->At(iP)))->GetString();
if (!particle.Length()) {
Printf("Error: Empty particle string");
return 1;
}
Printf("\nPlotting efficiency for: %s", particle.Data());
TString outputDir = Form("hf-task-%s", particle.Data()); // analysis output directory with histograms
// inclusive candidates
TString nameHistRec = outputDir + "/hPtRecSig"; // reconstruction level pT of matched candidates
//nameHistRec = outputDir + "/hPtGenSig"; // generator level pT of matched candidates (no pT smearing)
TString nameHistgen = outputDir + "/hPtGen"; // generator level pT of generated particles
TH1F* hPtRecIncl = (TH1F*)file->Get(nameHistRec.Data());
if (!hPtRecIncl) {
Printf("Error: Failed to load %s from %s", nameHistRec.Data(), pathFile.Data());
return 1;
}
TH1F* hPtGenIncl = (TH1F*)file->Get(nameHistgen.Data());
if (!hPtGenIncl) {
Printf("Error: Failed to load %s from %s", nameHistgen.Data(), pathFile.Data());
return 1;
}
// prompt candidates
bool okPrompt = true;
nameHistRec = outputDir + "/hPtRecSigPrompt";
TH1F* hPtRecPrompt = (TH1F*)file->Get(nameHistRec.Data());
if (!hPtRecPrompt) {
Printf("Warning: Failed to load %s from %s", nameHistRec.Data(), pathFile.Data());
okPrompt = false;
}
nameHistgen = outputDir + "/hPtGenPrompt";
TH1F* hPtGenPrompt = (TH1F*)file->Get(nameHistgen.Data());
if (!hPtGenPrompt) {
Printf("Warning: Failed to load %s from %s", nameHistgen.Data(), pathFile.Data());
okPrompt = false;
}
// non-prompt candidates
bool okNonPrompt = true;
nameHistRec = outputDir + "/hPtRecSigNonPrompt";
TH1F* hPtRecNonPrompt = (TH1F*)file->Get(nameHistRec.Data());
if (!hPtRecNonPrompt) {
Printf("Warning: Failed to load %s from %s", nameHistRec.Data(), pathFile.Data());
okNonPrompt = false;
}
nameHistgen = outputDir + "/hPtGenNonPrompt";
TH1F* hPtGenNonPrompt = (TH1F*)file->Get(nameHistgen.Data());
if (!hPtGenNonPrompt) {
Printf("Warning: Failed to load %s from %s", nameHistgen.Data(), pathFile.Data());
okNonPrompt = false;
}
TCanvas* canPt = new TCanvas(Form("canPt_%s", particle.Data()), "Pt", 1200, 1000);
TLegend* legendPt = new TLegend(0.72, 0.72, 0.92, 0.92);
TCanvas* canEff = new TCanvas(Form("canEff_%s", particle.Data()), "Eff", 1200, 1000);
TLegend* legendEff = new TLegend(0.1, 0.72, 0.3, 0.92);
nGen = hPtGenIncl->GetEntries();
nRec = hPtRecIncl->GetEntries();
// pT spectra
auto padPt = canPt->cd();
// inclusive
if (iNRebin > 1) {
hPtGenIncl->Rebin(iNRebin);
hPtRecIncl->Rebin(iNRebin);
} else if (NRebin > 1) {
hPtGenIncl = (TH1F*)hPtGenIncl->Rebin(NRebin, "hPtGenInclR", dRebin);
hPtRecIncl = (TH1F*)hPtRecIncl->Rebin(NRebin, "hPtRecInclR", dRebin);
}
yMin = std::min(hPtRecIncl->GetMinimum(0), hPtGenIncl->GetMinimum(0));
yMax = std::max(hPtRecIncl->GetMaximum(), hPtGenIncl->GetMaximum());
SetHistogramStyle(hPtGenIncl, colours[0], markers[0], 1.5, 2);
SetHistogramStyle(hPtRecIncl, colours[0], markers[0], 1.5, 2);
hPtGenIncl->SetTitle(Form("Entries: Rec: %d, Gen: %d;#it{p}_{T} (GeV/#it{c});entries", nRec, nGen));
hPtGenIncl->GetYaxis()->SetMaxDigits(3);
// prompt
if (okPrompt) {
if (iNRebin > 1) {
hPtGenPrompt->Rebin(iNRebin);
hPtRecPrompt->Rebin(iNRebin);
} else if (NRebin > 1) {
hPtGenPrompt = (TH1F*)hPtGenPrompt->Rebin(NRebin, "hPtGenPromptR", dRebin);
hPtRecPrompt = (TH1F*)hPtRecPrompt->Rebin(NRebin, "hPtRecPromptR", dRebin);
}
yMin = std::min({yMin, hPtRecPrompt->GetMinimum(0), hPtGenPrompt->GetMinimum(0)});
yMax = std::max({yMax, hPtRecPrompt->GetMaximum(), hPtGenPrompt->GetMaximum()});
SetHistogramStyle(hPtGenPrompt, colours[1], markers[1], 1.5, 2);
SetHistogramStyle(hPtRecPrompt, colours[1], markers[1], 1.5, 2);
}
// non-prompt
if (okNonPrompt) {
if (iNRebin > 1) {
hPtGenNonPrompt->Rebin(iNRebin);
hPtRecNonPrompt->Rebin(iNRebin);
} else if (NRebin > 1) {
hPtGenNonPrompt = (TH1F*)hPtGenNonPrompt->Rebin(NRebin, "hPtGenNonPromptR", dRebin);
hPtRecNonPrompt = (TH1F*)hPtRecNonPrompt->Rebin(NRebin, "hPtRecNonPromptR", dRebin);
}
yMin = std::min({yMin, hPtRecNonPrompt->GetMinimum(0), hPtGenNonPrompt->GetMinimum(0)});
yMax = std::max({yMax, hPtRecNonPrompt->GetMaximum(), hPtGenNonPrompt->GetMaximum()});
SetHistogramStyle(hPtGenNonPrompt, colours[2], markers[2], 1.5, 2);
SetHistogramStyle(hPtRecNonPrompt, colours[2], markers[2], 1.5, 2);
}
SetHistogram(hPtGenIncl, yMin, yMax, marginLow, marginHigh, logScaleH);
SetPad(padPt, logScaleH);
hPtGenIncl->Draw();
hPtRecIncl->Draw("same EP");
legendPt->AddEntry(hPtRecIncl, "inclusive rec", "P");
legendPt->AddEntry(hPtGenIncl, "inclusive gen", "L");
if (okPrompt) {
hPtGenPrompt->Draw("same");
hPtRecPrompt->Draw("same EP");
legendPt->AddEntry(hPtRecPrompt, "prompt rec", "P");
legendPt->AddEntry(hPtGenPrompt, "prompt gen", "L");
}
if (okNonPrompt) {
hPtGenNonPrompt->Draw("same");
hPtRecNonPrompt->Draw("same EP");
legendPt->AddEntry(hPtRecNonPrompt, "non-prompt rec", "P");
legendPt->AddEntry(hPtGenNonPrompt, "non-prompt gen", "L");
}
legendPt->Draw();
// efficiency
auto padEff = canEff->cd();
TH1F* hEffIncl = nullptr;
TH1F* hEffPrompt = nullptr;
TH1F* hEffNonPrompt = nullptr;
// inclusive
hEffIncl = (TH1F*)hPtRecIncl->Clone("hEffIncl");
hEffIncl->Divide(hEffIncl, hPtGenIncl, 1., 1., "B");
yMin = hEffIncl->GetMinimum(0);
yMax = hEffIncl->GetMaximum();
SetHistogramStyle(hEffIncl, colours[0], markers[0], 1.5, 2);
hEffIncl->SetTitle(Form("Entries ratio: %g;#it{p}_{T} (GeV/#it{c});reconstruction efficiency", (double)nRec / (double)nGen));
// prompt
if (okPrompt) {
hEffPrompt = (TH1F*)hPtRecPrompt->Clone("hEffPrompt");
hEffPrompt->Divide(hPtRecPrompt, hPtGenPrompt, 1., 1., "B");
yMin = std::min(yMin, hEffPrompt->GetMinimum(0));
yMax = std::max(yMax, hEffPrompt->GetMaximum());
SetHistogramStyle(hEffPrompt, colours[1], markers[1], 1.5, 2);
}
// non-prompt
if (okNonPrompt) {
hEffNonPrompt = (TH1F*)hPtRecNonPrompt->Clone("hEffNonPrompt");
hEffNonPrompt->Divide(hPtRecNonPrompt, hPtGenNonPrompt, 1., 1., "B");
yMin = std::min(yMin, hEffNonPrompt->GetMinimum(0));
yMax = std::max(yMax, hEffNonPrompt->GetMaximum());
SetHistogramStyle(hEffNonPrompt, colours[2], markers[2], 1.5, 2);
}
SetHistogram(hEffIncl, yMin, yMax, marginRLow, marginRHigh, logScaleR);
SetPad(padEff, logScaleR);
hEffIncl->Draw("EP");
legendEff->AddEntry(hEffIncl, "inclusive", "P");
if (okPrompt) {
hEffPrompt->Draw("same EP");
legendEff->AddEntry(hEffPrompt, "prompt", "P");
}
if (okNonPrompt) {
hEffNonPrompt->Draw("same EP");
legendEff->AddEntry(hEffNonPrompt, "non-prompt", "P");
}
legendEff->Draw();
canPt->SaveAs(Form("MC_%s_pT.pdf", particle.Data()));
canEff->SaveAs(Form("MC_%s_eff.pdf", particle.Data()));
}
delete arrayParticle;
return 0;
}