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CheckTrkAvgs.C
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CheckTrkAvgs.C
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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
/// \file CheckTrkAvgs.C
/// \brief Macro to look for duplicate tracks across a ROF windows
#if !defined(__CLING__) || defined(__ROOTCLING__)
#include <vector>
#include <TFile.h>
#include <TTree.h>
#include <TH2D.h>
#include <TCanvas.h>
#include <TMath.h>
#include <TStyle.h>
#include <TGaxis.h>
#include <TMultiGraph.h>
#include <TGraph.h>
// #include <TAxis.h>
#include <TLegend.h>
#include "DataFormatsITSMFT/ROFRecord.h"
#include "DataFormatsITS/TrackITS.h"
#include "Framework/Logger.h"
#endif
void fill_avgs(std::vector<int> &runs, std::vector<double_t> &avgs, int rofEnd) {
if (runs[0] < 100) { // this must be MC
for (int run : runs) {
int totalTracks{0}, totalROFs{0};
for (int tf = 1; tf <= 5; tf++) {
// Obtain data from files:
TFile *file1 = TFile::Open(Form("~/alice/mc_real/data/mc/%i/o2trac_its_01_tf%i.root", run, tf));
// TODO: possible solution is to loop through every file with this: https://stackoverflow.com/questions/67273/how-do-you-iterate-through-every-file-directory-recursively-in-standard-c
TTree *recTree = (TTree *)gFile->Get("o2sim");
// Extract track information
std::vector<o2::its::TrackITS> *recArr = nullptr;
recTree->SetBranchAddress("ITSTrack", &recArr);
// Extract information on which ROFs contain which tracks
std::vector<o2::itsmft::ROFRecord> *rofArr = nullptr;
recTree->SetBranchAddress("ITSTracksROF", &rofArr);
int rofFrameEnd = rofEnd; // In case frames have different numbers of ROFs, store the final ROF index separately for each frame inside rofFrameEnd
int totalFrames = recTree->GetEntriesFast();
for (int frame = 0; frame < totalFrames; frame++)
{ // Loop over timeframes
LOGP(info, "Proceeding to frame {} of {}", frame + 1, totalFrames);
recTree->GetEvent(frame);
LOGP(info, "{} ROFs in frame {}/{}", rofArr->size(), frame + 1, totalFrames);
if (rofEnd >= (int long)rofArr->size() || rofEnd < 0)
{ // Check whether rofEnd is greater than the total number of ROFs in this dataset, or negative; if so, set to maximum
LOGP(warn, "Frame {}/{}: currently set upper ROF limit {} out of bounds; set to maximum {} instead.", frame + 1, totalFrames, rofEnd, rofArr->size() - 1);
rofFrameEnd = rofArr->size() - 1;
}
totalTracks += recArr->size();
totalROFs += rofArr->size();
}
}
double_t average = (double_t) totalTracks / (double_t) totalROFs;
std::cout << "Average for this run " << run << " (MC) is " << average << " tracks per ROF." << endl;
avgs.push_back(average);
}
}
else { // this must be data
for (int run : runs) {
// Obtain data from files:
TFile *file1 = TFile::Open(Form("~/alice/mc_real/data/%i/o2trac_its.root", run));
TTree *recTree = (TTree *)gFile->Get("o2sim");
// Extract track information
std::vector<o2::its::TrackITS> *recArr = nullptr;
recTree->SetBranchAddress("ITSTrack", &recArr);
// Extract information on which ROFs contain which tracks
std::vector<o2::itsmft::ROFRecord> *rofArr = nullptr;
recTree->SetBranchAddress("ITSTracksROF", &rofArr);
int rofFrameEnd = rofEnd; // In case frames have different numbers of ROFs, store the final ROF index separately for each frame inside rofFrameEnd
int totalFrames = recTree->GetEntriesFast();
int totalTracks{0}, totalROFs{0};
for (int frame = 0; frame < totalFrames; frame++)
{ // Loop over timeframes
LOGP(info, "Proceeding to frame {} of {}", frame + 1, totalFrames);
recTree->GetEvent(frame);
LOGP(info, "{} ROFs in frame {}/{}", rofArr->size(), frame + 1, totalFrames);
if (rofEnd >= (int long)rofArr->size() || rofEnd < 0)
{ // Check whether rofEnd is greater than the total number of ROFs in this dataset, or negative; if so, set to maximum
LOGP(warn, "Frame {}/{}: currently set upper ROF limit {} out of bounds; set to maximum {} instead.", frame + 1, totalFrames, rofEnd, rofArr->size() - 1);
rofFrameEnd = rofArr->size() - 1;
}
totalTracks += recArr->size();
totalROFs += rofArr->size();
}
double_t average = (double_t) totalTracks / (double_t) totalROFs;
std::cout << "Average for this run " << run << " (data) is " << average << " tracks per ROF." << endl;
avgs.push_back(average);
}
}
}
void CheckTrkAvgs(TString tracfile = "data/523306/o2trac_its.root", TString output = ".", TString rootSave = "", int rofStart = 0, int rofEnd = -1, int windowSize = 2, bool includeSame = 1)
{
fair::Logger::SetFileSeverity("error");
gErrorIgnoreLevel = kWarning;
std::vector<int> runs_500{523306, 523786, 526596, 526938, 527821, 528448, 528798, 529115, 529324, 529462, 529662};
std::vector<double_t> IRs_500{466.2423407, 475.803939, 488.826, 500.820, 498.507, 503.520, 486.757, 507.798, 502.820, 486.506, 485.705};
std::vector<double_t> avgs_500;
std::vector<int> runs_range{536340, 536402, 536490, 536608, 536899, 536908};
std::vector<double_t> IRs_range{10.53854743, 53.017, 98.557, 238.661, 972.625, 735.5717224};
std::vector<double_t> avgs_range;
std::vector<int> runs_mc{1, 2, 3, 4, 5, 6, 7}; // indicates that this is MC and thus has no run number
std::vector<double_t> IRs_mc{10, 50, 100, 250, 500, 1000, 1500};
std::vector<double_t> avgs_mc;
fill_avgs(runs_500, avgs_500, rofEnd);
fill_avgs(runs_range, avgs_range, rofEnd);
fill_avgs(runs_mc, avgs_mc, rofEnd);
auto c1 = new TCanvas("c1", "", 0, 0, 1300, 800);
TMultiGraph *mg1 = new TMultiGraph();
mg1->SetMinimum(0);
mg1->SetTitle("Average tracks / ROF;interaction rate [kHz];tracks per ROF");
// mg1->SetMaximum(0.002);
TGraph* g_500 = new TGraph(IRs_500.size(), &IRs_500[0], &avgs_500[0]);
g_500->SetMarkerColor(kRed);
g_500->SetLineColor(kRed);
g_500->SetTitle("Data (IR=500 kHz)");
mg1->Add(g_500);
TGraph* g_range = new TGraph(IRs_range.size(), &IRs_range[0], &avgs_range[0]);
g_range->SetMarkerColor(kBlue);
g_range->SetLineColor(kBlue);
g_range->SetTitle("Data (full range)");
mg1->Add(g_range);
TGraph* g_mc = new TGraph(IRs_mc.size(), &IRs_mc[0], &avgs_mc[0]);
g_mc->SetMarkerColor(kGreen);
g_mc->SetLineColor(kGreen);
g_mc->SetTitle("Monte Carlo");
mg1->Add(g_mc);
mg1->Draw("A*");
mg1->GetYaxis()->SetTitleOffset(1.5);
TLegend *legend = new TLegend(0.4, 0.2, 0.6, 0.3);
legend->AddEntry(g_500,"Data (IR#approx500 kHz)","p");
legend->AddEntry(g_range,"Data (full IR range)","p");
legend->AddEntry(g_mc,"MC","p");
legend->Draw();
c1->SaveAs("trk_avgs.png");
}