CbmL1Counters.h

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#ifndef CbmL1Counters_H
#define CbmL1Counters_H
 
#include "TString.h"
#include <fstream>
#include <iomanip>
#include <iostream>
#include <map>
#include <vector>
using std::ios;
using std::map;
using std::setw;
using std::vector;
 
template<typename T>
struct TL1TracksCatCounters  // counters for different tracks categories
{
  TL1TracksCatCounters() : NCounters(0), counters() { counters.clear(); };
  TL1TracksCatCounters(int nCounters) : NCounters(nCounters), counters() {
    counters.resize(NCounters, T(0));
  };
 
  void AddCounter() {
    NCounters++;
    counters.push_back(T(0));
  };
  void AddCounters(int nCounters) {
    NCounters += nCounters;
    counters.resize(NCounters, T(0));
  };
 
  TL1TracksCatCounters& operator+=(TL1TracksCatCounters& a) {
    if (NCounters != a.NCounters) {
      std::cout << " TL1TracksCatCounters: Error. Addition of counters of "
                   "different sizes: "
                << NCounters << " " << a.NCounters << std::endl;
    } else {
      for (int iC = 0; iC < NCounters; iC++) {
        counters[iC] += a.counters[iC];
      }
    }
    return *this;
  };
 
  TL1TracksCatCounters operator+(TL1TracksCatCounters& a) {
    TL1TracksCatCounters res = *this;
    res += a;
    return res;
  };
 
  template<typename T2>
  TL1TracksCatCounters<double> operator/(TL1TracksCatCounters<T2>& a) {
    TL1TracksCatCounters<double> b(NCounters);
    if (NCounters != a.NCounters) {
      std::cout << " TL1TracksCatCounters: Error. Addition of counters of "
                   "different sizes: "
                << NCounters << " " << a.NCounters << std::endl;
    } else {
      for (int iC = 0; iC < NCounters; iC++) {
        b.counters[iC] = Div(counters[iC], a.counters[iC]);
      }
    }
    return b;
  };
 
  template<typename T2>
  TL1TracksCatCounters<T2> operator/(double a) {
    TL1TracksCatCounters<T2> b(NCounters);
    for (int iC = 0; iC < NCounters; iC++) {
      b.counters[iC] = static_cast<T2>(Div(counters[iC], a));
    }
    return b;
  };
 
  friend std::fstream& operator<<(std::fstream& strm,
                                  const TL1TracksCatCounters<T>& a) {
    strm << a.NCounters << " " << a.counters.size() << " ";
    for (unsigned int iV = 0; iV < a.counters.size(); iV++)
      strm << a.counters[iV] << " ";
    strm << std::endl;
    return strm;
  }
 
  friend std::ostream& operator<<(std::ostream& strm,
                                  const TL1TracksCatCounters<T>& a) {
    strm << a.NCounters << " " << a.counters.size() << " ";
    for (unsigned int iV = 0; iV < a.counters.size(); iV++)
      strm << a.counters[iV] << " ";
    strm << std::endl;
    return strm;
  }
 
  friend std::fstream& operator>>(std::fstream& strm,
                                  TL1TracksCatCounters<T>& a) {
    int tmp;
    strm >> tmp;
    a.NCounters = tmp;
    strm >> tmp;
    a.counters.resize(tmp, T(0));
    for (int iV = 0; iV < tmp; iV++) {
      T tmp1;
      strm >> tmp1;
      a.counters[iV] = tmp1;
    }
    return strm;
  }
 
private:
  double Div(double a, double b) { return (b > 0) ? a / b : -1.; };
 
public:
  int NCounters;
  vector<T> counters;
};
 
struct TL1Efficiencies {
  TL1Efficiencies()
    : names()
    , indices()
    , ratio_reco()
    , ratio_ghosts(0)
    , ratio_clones(0)
    , mc()
    , reco()
    , ghosts(0)
    , clones(0)
    , nEvents(0) {
        // you should add counter with shortname="total" !!
      };
 
  virtual ~TL1Efficiencies() {};
 
  virtual void AddCounter(TString shortname, TString name);
 
  TL1Efficiencies& operator+=(TL1Efficiencies& a);
  void CalcEff();
  void Inc(bool isReco,
           TString name);  // increment counters according to parameters
  void IncNEvents() { nEvents++; };
 
  void PrintEff();
 
 
  vector<TString> names;  // names counters indexed by index of counter
  map<TString, int>
    indices;  // indices of counters indexed by a counter shortname
 
  TL1TracksCatCounters<double> ratio_reco;
  double ratio_ghosts;
  double ratio_clones;
 
  TL1TracksCatCounters<int> mc;
  TL1TracksCatCounters<int> reco;
  int ghosts;
  int clones;
  int nEvents;
};
 
inline void TL1Efficiencies::AddCounter(TString shortname, TString name) {
  indices[shortname] = names.size();
  names.push_back(name);
 
  ratio_reco.AddCounter();
  mc.AddCounter();
  reco.AddCounter();
}
 
inline void TL1Efficiencies::CalcEff() {
  ratio_reco         = reco / mc;
  const double total = reco.counters[indices["total"]] + ghosts + clones;
  if (total > 0) {
    ratio_clones = clones / total;
    ratio_ghosts = ghosts / total;
  } else {
    ratio_clones = -1;
    ratio_ghosts = -1;
  }
};
 
inline TL1Efficiencies& TL1Efficiencies::operator+=(TL1Efficiencies& a) {
  mc += a.mc;
  reco += a.reco;
  ghosts += a.ghosts;
  clones += a.clones;
  nEvents += a.nEvents;
 
  return *this;
};
 
inline void TL1Efficiencies::Inc(bool isReco, TString name) {
  const int index = indices[name];
 
  mc.counters[index]++;
  if (isReco) reco.counters[index]++;
};
 
inline void TL1Efficiencies::PrintEff() {
  std::cout.setf(ios::fixed);
  std::cout.setf(ios::showpoint);
  std::cout.precision(3);
  std::cout.setf(ios::right);
  std::cout << "Track category         : "
            << " Eff "
            << " | "
            << "All MC" << std::endl;
 
  int NCounters = mc.NCounters;
  for (int iC = 0; iC < NCounters; iC++) {
    std::cout << names[iC] << "   : " << ratio_reco.counters[iC] << "  | "
              << mc.counters[iC] << std::endl;
  }
 
  std::cout << "Clone     probability  : " << ratio_clones << " | " << clones
            << std::endl;
  std::cout << "Ghost     probability  : " << ratio_ghosts << " | " << ghosts
            << std::endl;
};
 
#endif