ATLAS Offline Software
MonitoringFile_HLTMETAveragePhivsEtaMaps.cxx
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1 /*
2  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
3  */
4 
5 /* HLTMET Post Processing Method: Peform bin-wise division for each Phi.vs.Eta maps of MET, SumEt, SumE
6  * with Phi.vs.Eta map of N to compute <MET>(eta,phi), <SumEt>(eta,phi)
7  * and <SumE>(eta,phi)
8  * Author : Venkatesh Kaushik <venkat.kaushik@cern.ch>
9  * Date : Feb 2010
10  */
11 
13 
14 #include <iostream>
15 #include <iomanip>
16 #include <algorithm>
17 #include <fstream>
18 #include <cmath>
19 #include <cstdlib>
20 #include <sstream>
21 #include <vector>
22 #include <utility>
23 #include <map>
24 #include <string>
25 
26 #include "TH1F.h"
27 #include "TH2F.h"
28 #include "TFile.h"
29 #include "TClass.h"
30 #include "TKey.h"
31 #include "TMath.h"
32 #include "TF1.h"
33 #include "TTree.h"
34 #include "TBranch.h"
35 
36 namespace dqutils {
37  void
38  MonitoringFile::HLTMETAveragePhivsEtaMaps(TFile* f, TString& run_dir) {
39  bool dbgLevel = false;
40 
41  if (dbgLevel) std::cout << "--> HLTMETAveragePhivsEtaMaps: <Quantity(eta,phi)> = Quantity(eta,phi)/N(eta,phi) " << std::endl;
42 
43  f->cd("/");
44  TIter next_run(f->GetListOfKeys());
45  TKey* key_run(0);
46  while ((key_run = dynamic_cast<TKey*> (next_run())) != 0) {
47  if (!key_run->IsFolder()) continue;
48  run_dir = key_run->GetName();
49  if (!run_dir.Contains("run")) {
50  continue;
51  }
52 
53 
54  std::string run_dir2 = run_dir.Data();
55 
56  // all merged root files have the structure "rootfile.root:/run_NNNNNNN"
57  // use that to extract run number
58  //int run_number = atoi( (run_dir2.substr(4, run_dir2.size()-4 )).c_str() );
59  //run_number=run_number;
60 
61  // begin HLTMET
62  // note 1: prefix all dirs and hists with '/'
63  // note 2: missing dir => return
64  // note 3: missing hist => continue
65  TString hlt_top = run_dir + "/HLT"; // toplevel
66  TString met_efdir = "/EFMissingET_Fex"; // EF dir
67 
68  std::vector<TString> met_fexs, hist_numr;
69 
70  // expect the following fex dirs
71  met_fexs.push_back("/METMon");
72  //met_fexs.push_back("/METMon_FEB");
73  //met_fexs.push_back("/METMon_allCells");
74 
75  // check if fex dirs are in hlt
76  for (std::vector<TString>::iterator it = met_fexs.begin(); it != met_fexs.end(); ++it) {
77  TString theHistDir = hlt_top + *it;
78  TDirectory* dir = f->GetDirectory(theHistDir);
79  if (!dir) {
80  std::cerr << "--> HLTMETAveragePhivsEtaMaps: directory " << theHistDir << " not found" << std::endl;
81  return;
82  }
83  // expect the EF dir inside each fex dir
84  theHistDir += met_efdir;
85  dir = f->GetDirectory(theHistDir);
86  if (!dir) {
87  std::cerr << "--> HLTMETAveragePhivsEtaMaps: directory " << theHistDir << " not found" << std::endl;
88  return;
89  }
90  }
91 
92  // MEt, SumEt, SumE of components (numerator)
93  // compSumEt_lin_EtaPhi_00 etc..
94  hist_numr.push_back("/compEt_lin_");
95  hist_numr.push_back("/compSumEt_lin_");
96  hist_numr.push_back("/compSumE_lin_"); // need to plot SumE on linear scale (todo)
97 
98  // components N (denominator)
99  TString hist_denr = "/compN_";
100 
101  // type (eta,phi map)
102  TString hist_suffix = "EtaPhi_"; // phi vs. eta map
103 
104  // each component a 2d hist. get all components
105  unsigned int comp_num = 25; // 25 components
106 
107  // we have all dirs, get the component histograms
108  for (std::vector<TString>::iterator itFex = met_fexs.begin(); itFex != met_fexs.end(); ++itFex) {
109  for (std::vector<TString>::iterator itNum = hist_numr.begin(); itNum != hist_numr.end(); ++itNum) {
110  for (unsigned int icomp = 0; icomp < comp_num; icomp++) {
111  TH2F* hnum(0), *hden(0);
112 
113  // prepend histogram name with path and append with suffix [_00 .., _24 for each component]
114  TString thePath = hlt_top + (*itFex) + met_efdir;
115  TString numHist = (*itNum) + hist_suffix + TString(Form("%02u", icomp));
116  TString denHist = hist_denr + hist_suffix + TString(Form("%02u", icomp));
117  TString numPath = thePath + numHist;
118  TString denPath = thePath + denHist;
119 
120  // test if histograms are present
121  if (!f->Get(numPath)) {
122  if (dbgLevel) std::cerr << "--> HLTMETAveragePhivsEtaMaps: no histogram " << numPath << std::endl;
123  continue;
124  }
125  if (!f->Get(denPath)) {
126  if (dbgLevel) std::cerr << "--> HLTMETAveragePhivsEtaMaps: no histogram " << denPath << std::endl;
127  continue;
128  }
129 
130  // get histograms
131  hnum = (TH2F*) (f->Get(numPath));
132  hden = (TH2F*) (f->Get(denPath));
133 
134  // get directory of histograms
135  TDirectory* dir = f->GetDirectory(thePath);
136 
137  // these are disabled, because we have to worry about updating metadata
138  // clone numerator histogram in the same directory; prepend with "avg_"
139  // use numerator to do the job
140  //TString avgHist = TString("avg_") + (*itNum) + hist_suffix + TString(Form("%02u",icomp));
141  //havg = (TH2F *) (hnum->Clone(avgHist));
142  //havg->SetDirectory(dir);
143 
144  // divide num by den to get average quantity.
145  hnum->Divide(hnum, hden);
146 
147  // fix histogram titles
148  TString title = hnum->GetTitle();
149  title.ReplaceAll(": ", ": #LT");
150  title.ReplaceAll("(#eta", "#GT(#eta");
151  hnum->SetTitle(title);
152 
153  //title = hden->GetTitle();
155  //title.ReplaceAll(" #phi VS #eta",": N(#eta, #phi)");
156  //hden->SetTitle(title);
157 
158  //std::cout << numHist << " div " << denHist << std::endl;
159  //std::cout << hnum->GetZaxis()->GetTitle() << "\t";
160  //std::cout << hden->GetZaxis()->GetTitle() << std::endl;
161  //std::cout << hnum->GetTitle() << "\t";
162  //std::cout << hden->GetTitle() << std::endl;
163  //std::cout << "-------------------------------------------------------------" << std::endl;
164  //getchar();
165  // cd() into that directory and save the avg histogram in file
166  dir->cd();
167  hnum->Write("", TObject::kOverwrite);
168  } // done looping over components
169  } // done looping over quantities
170  } // done looping over directories
171  } // end while loop over all keys
172  } // end method MonitoringFile::HLTMETAveragePhivsEtaMaps
173 } // end namespace
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Definition: MonitoringFile_HLTMETAveragePhivsEtaMaps.cxx:38