/[PAMELA software]/PamCut/Collections/EffCollection/EffCollection.cpp
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Diff of /PamCut/Collections/EffCollection/EffCollection.cpp

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revision 1.3 by pam-fi, Wed Aug 12 14:18:13 2009 UTC revision 1.6 by pam-fi, Fri Sep 25 15:02:03 2009 UTC
# Line 8  Line 8 
8  /*! @file EffCollection.cpp The EffCollection class implementation file. */  /*! @file EffCollection.cpp The EffCollection class implementation file. */
9    
10  #include "EffCollection.h"  #include "EffCollection.h"
11    #include "TGraphAsymmErrors.h"
12    
13  EffCollection::EffCollection(const char *collectionName, TString outFileBase) :  extern "C" {
14    bool efficiency_(Int_t*, Int_t*, Double_t*, Double_t*, Double_t*);
15    }
16    
17    EffCollection::EffCollection(const char *collectionName, TString outFileBase, int errMethod) :
18    VerboseCollection(collectionName), _selCollection("selCollection"), _detCollection("detCollection"), _outFileBase(    VerboseCollection(collectionName), _selCollection("selCollection"), _detCollection("detCollection"), _outFileBase(
19        outFileBase), _det(0), _sel(0) {        outFileBase), _errMethod(errMethod), _det(0), _sel(0) {
20    
21  }  }
22    
# Line 55  void EffCollection::Finalize() { Line 60  void EffCollection::Finalize() {
60    // Now all the cuts are in place, and VerboseCollection can print its report    // Now all the cuts are in place, and VerboseCollection can print its report
61    VerboseCollection::Finalize();    VerboseCollection::Finalize();
62    
63    // Add some info about efficiency    // Compute the error
64    float eff;    Int_t sel = (Int_t) _sel;
65    if (_sel != 0.)    Int_t det = (Int_t) _det;
66      eff = _det / _sel;    Double_t eff, errLow, errHigh;
67    else    if (_errMethod == EFFRIG_ROOT) {
68      eff = 0.;      if (sel < 8) {
69          eff = 1.1;
70          errLow = errHigh = 0.;
71        }
72        else {
73          TH1I pass("pass", "pass", 1, 0., 1.);
74          TH1I total("total", "total", 1, 0., 1.);
75          pass.Fill(0.5, det);
76          total.Fill(0.5, sel);
77          TGraphAsymmErrors errGraph;
78          errGraph.BayesDivide(&pass, &total);
79          Double_t dummy;
80          errGraph.GetPoint(0, dummy, eff);
81          errLow = errGraph.GetErrorYlow(0);
82          errHigh = errGraph.GetErrorYhigh(0);
83        }
84      }
85      if (_errMethod == EFFRIG_SERGIO) {
86        efficiency_(&sel, &det, &eff, &errLow, &errHigh);
87      }
88    
89      // Add some info about efficiency to the stdout
90    cout << "    ****** Efficiency informations ******\n";    cout << "    ****** Efficiency informations ******\n";
91    cout << "    Detector cuts:\n";    cout << "    Detector cuts:\n";
92    for (unsigned int i = 0; i < _detCollection.GetSize(); i++)    for (unsigned int i = 0; i < _detCollection.GetSize(); i++)
93      cout << "      - " << _detCollection.GetCut(i)->GetName() << "\n";      cout << "      - " << _detCollection.GetCut(i)->GetName() << "\n";
94    cout << "    Total detector efficiency: " << eff << endl;    cout << "    Total detector efficiency: " << eff << " +" << errHigh << "-" << errLow << endl;
95    
96    // Write the output file    // Write the output file
97    if (_outFileBase != "") {    if (_outFileBase != "") {
98    
99      ofstream outTextFile((_outFileBase + "-eff.txt").Data(), ios_base::out);      ofstream outTextFile((_outFileBase + "-eff.txt").Data(), ios_base::out);
100      outTextFile << _det << "    " << _sel << "    " << eff << endl;      streamsize newPrec = 4;
101        outTextFile.precision(newPrec);
102        outTextFile.setf(ios::fixed, ios::floatfield);
103        outTextFile << setw(10) << det << setw(10) << sel << setw(10) << eff << setw(10) << errLow << setw(10) << errHigh
104            << endl;
105      outTextFile.close();      outTextFile.close();
106    }    }
107    
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