Histo2DActions/Histo2DAction/Histo2DAction.h

/*
 * Histo2DAction.h
 *
 *  Created on: 01/set/2009
 *      Author: Nicola Mori
 */

/*! @file Histo2DAction.h The Histo2DAction class declaration file. */

#ifndef HISTO2DACTION_H_
#define HISTO2DACTION_H_

#include "../../CollectionAction/CollectionAction.h"

#include <TH2I.h>
#include <TH2F.h>
#include <TH2D.h>

/*! @brief An abstract action that fills a 2-dimensional histogram.
 *
 * This abstract class provides all the common methods needed to produce 2-dimensional histograms,
 * like reading the bins from a file, setting up the root histogram and so on. It handles histograms
 * both as a ROOT histogram and as a matrix. The OnGood() method has to be implemented in children
 * classes, with the specific physical variables to fill the histogram. Eg., a dE/dx vs. rigidity
 * histogram class derived from Histo2DAction could have this OnGood() implementation:
 *
 * Fill(event->GetTrack(0)->GetTrkTrack()->GetRigidity(), event->GetTrack(0)->GetTrkTrack()->GetDEDX());
 *
 * Fill() automatically fills the ROOT and the matrix histogram.
 * The template argument HistoType is the type of histogram (Int_t, Double_t,...). In current
 * implementation, ROOT histograms are only supported for Int_t, Float_t and Double_t. For all the
 * other types, only the the matrix histogram with text file output will be produced. If you want to
 * implement some new types of ROOT histograms, please specialize the template definitions of _CreateHisto()
 * and ~Histo2DAction() (see the specializations in the .cpp file).
 *
 * */
template<class HistoType>
class Histo2DAction: public CollectionAction {
public:

  /*! @brief Constructor.
   *
   * The histogram binning is defined by the content of the bins vector.
   *
   * @param actionName The action's name.
   * @param title The ROOT histogram title.
   * @param outFileBase The file base name for the histogram output. If "", no output file will be produced.
   * @param mode The mode of ROOT file creation (see documentation of TFile constructor
   *             in ROOT's reference guide).
   * @param outRoot If true, an output ROOT file named outFileBase + ".root" will be produced.
   * @param outText If true, an output text file named outFileBase + ".txt" will be produced. It will overwrite an
   *                eventually existing file with the same name.
   */
  Histo2DAction(const char *actionName, TString title = "", TString outFileBase = "", TString mode = "UPDATE",
      bool outRoot = false, bool outText = false);

  /*! @brief Destructor
   *
   * This has to be specialized for each kind of ROOT histogram.
   *
   * */
  ~Histo2DAction();

  /*! @brief Sets the X axis using a binning read from a a vector.
   *
   * @param label The axis' label.
   * @param bins A vector containing the histogram binning (with sign, eventually; from lowest to highest).
   */
  void SetXAxis(TString label, vector<float> &bins);
  /*! @brief Sets the X axis reading the binning from a file.
   *
   * @param label The axis' label.
   * @param binsFile The file containing the bins (with sign, eventually; from lowest to highest).
   */
  void SetXAxis(TString label, TString binsFile);
  /*! @brief Sets the X axis specifying the binning parameters.
   *
   * @param label The axis' label.
   * @param nBins The number of bins.
   * @param min The lower limit of the axis.
   * @param max The upper limit of the axis.
   * @param logBinning If true, bins will be logarithmically spaced.
   */
  void SetXAxis(TString label, unsigned int nBins, float min, float max, bool logBinning = false);

  /*! @brief Sets the Y axis using a binning read from a a vector.
   *
   * @param label The axis' label.
   * @param bins A vector containing the histogram binning (with sign, eventually; from lowest to highest).
   */
  void SetYAxis(TString label, vector<float> &bins);
  /*! @brief Sets the Y axis reading the binning from a file.
   *
   * @param label The axis' label.
   * @param binsFile The file containing the bins (with sign, eventually; from lowest to highest).
   */
  void SetYAxis(TString label, TString binsFile);

  /*! @brief Sets the Y axis specifying the binning parameters.
   *
   * @param label The axis' label.
   * @param nBins The number of bins.
   * @param min The lower limit of the axis.
   * @param max The upper limit of the axis.
   * @param logBinning If true, bins will be logarithmically spaced.
   */
  void SetYAxis(TString label, unsigned int nBins, float min, float max, bool logBinning = false);

  /*! @brief Sets the ROOT histogram's title.
   *
   * @param title The histogram title as it will appear on the histogram itself.
   */
  void SetTitle(TString &title) {
    _title = title;
  }
  /*! @brief Sets up the histogram
   *
   * This routine effectively prepares the histogram, after the desired parameters has been set by #SetXAxis() and #SetYAxis().
   *
   * @param events Pointer to PamLevel2 events (unused).
   */
  void Setup(PamLevel2 *events) {
    CollectionAction::Setup(events);
    _InitHistos();

  }

  /*! @ brief Post-analysis tasks.
   *
   * This method writes the output on a ROOT file if the proper option was set in the constructor.
   */
  void Finalize();

  /*! @brief Returns the histogram.
   *
   * Element [i][j] is the value of the i-th bin on the Y axis and on the j-th bin on the X axis. This sort
   * of index inversion is due to logically maintain the Y values on the vertical axis of the matrix, which
   * is indexed by the row number (which conventionally is the first index of a matrix element).
   *
   * @return A reference to a matrix containing the values of the bins of the histogram.
   */
  SimpleMatrix<HistoType> &GetHisto() {
    return _histo;
  }

  /*! Fills the ROOT and the vector histogram.
   *
   * @param xValue The value of the X coordinate associated to the event.
   * @param yValue The value of the Y coordinate associated to the event.
   * @param weight The weight which will be applied to the event.
   */
  void Fill(double xValue, double yValue, double weight = 1.);

  /*! @brief Gets the X overflow histogram.
   *
   * The returned vector contains the histogram filled with the X overflow events, eg.,
   * those events whose X variable falls above the upper limit of the X axis. This histogram
   * is binned like the Y axis.
   *
   * @return The X overflow histogram.
   */
  vector<HistoType>& GetXOverflow() {
    return _xOverflow;
  }

  /*! @brief Gets the X underflow histogram.
   *
   * The returned vector contains the histogram filled with the X underflow events, eg.,
   * those events whose X variable falls below the lower limit of the X axis. This histogram
   * is binned like the Y axis.
   *
   * @return The X underflow histogram.
   */
  vector<HistoType>& GetXUnderflow() {
    return _xUnderflow;
  }

  /*! @brief Gets the Y overflow histogram.
   *
   * The returned vector contains the histogram filled with the Y overflow events, eg.,
   * those events whose Y variable falls above the upper limit of the Y axis. This histogram
   * is binned like the X axis.
   *
   * @return The Y overflow histogram.
   */
  vector<HistoType>& GetYOverflow() {
    return _yOverflow;
  }

  /*! @brief Gets the Y underflow histogram.
   *
   * The returned vector contains the histogram filled with the Y underflow events, eg.,
   * those events whose Y variable falls below the lower limit of the Y axis. This histogram
   * is binned like the X axis.
   *
   * @return The Y underflow histogram.
   */
  vector<HistoType>& GetYUnderflow() {
    return _yUnderflow;
  }

  /*! @brief Gets the X-Y overflow histogram.
   *
   * This single-bin histogram is built with events which fall above the lower limits of both the
   * X and Y axis.
   *
   * @return The X-Y overflow histogram.
   */
  HistoType GetXOverYOverflow() {
    return _xOverYOverflow;
  }

  /*! @brief Gets the X-Y underflow histogram.
   *
   * This single-bin histogram is built with events fall below the lower limits of both the X and Y axis.
   *
   * @return The X-Y overflow histogram.
   */
  HistoType GetXUnderYUnderflow() {
    return _xUnderYUnderflow;
  }
  /*! @brief Gets the (X over - Y under)flow histogram.
   *
   * This single-bin histogram is built with events fall above the lower limit of the Xaxis  and below
   * that of the Y axis.
   *
   * @return The (X over -Y under)flow histogram.
   */
  HistoType GetXOverYUnderflow() {
    return _xOverYUnderflow;
  }

  /*! @brief Gets the (X under - Y over)flow histogram.
   *
   * This single-bin histogram is built with events fall below the lower limit of the X axis and above
   * that of the Y axis.
   *
   * @return The (X under -Y over)flow histogram.
   */
  HistoType GetXUnderYOverflow() {
    return _xUnderYOverflow;
  }

protected:

  /*! @brief The vector containing the limits of the X bins(from lower to higher). */
  std::vector<float> _xBins;
  /*! @brief The vector containing the limits of the Y bins(from lower to higher). */
  std::vector<float> _yBins;
  /*! @brief A matrix containing the value of the histogram for each X-Y bin. */
  SimpleMatrix<HistoType> _histo;
  /*! @brief The ROOT histogram. */
  TH2 *_rootHisto;

private:

  vector<HistoType> _xUnderflow, _xOverflow, _yUnderflow, _yOverflow;
  HistoType _xUnderYUnderflow, _xOverYOverflow, _xUnderYOverflow, _xOverYUnderflow;
  TString _outFileBase;
  TString _mode;
  TString _title, _xLabel, _yLabel;
  bool _outRoot;
  bool _outText;

  void _CreateHisto();
  void _InitHistos();
};

template<class HistoType>
void Histo2DAction<HistoType>::_CreateHisto() {

  // No ROOT histogram for generic type; see template specializations in .cpp file.
  _rootHisto = NULL;
}

template<class HistoType>
void Histo2DAction<HistoType>::_InitHistos() {

  _CreateHisto();

  if (_xBins.size() < 2) {
    _xBins.resize(2);
    _xBins[0] = 0.;
    _xBins[1] = 1.;
  }

  if (_yBins.size() < 2) {
    _yBins.resize(2);
    _yBins[0] = 0.;
    _yBins[1] = 1.;
  }

  if (_rootHisto) {
    Double_t *auxXArray = new Double_t[_xBins.size()];

    for (unsigned int i = 0; i < _xBins.size(); i++) {
      auxXArray[i] = _xBins[i];
    }

    Double_t *auxYArray = new Double_t[_yBins.size()];

    for (unsigned int i = 0; i < _yBins.size(); i++) {
      auxYArray[i] = _yBins[i];
    }

    _rootHisto->SetBins(_xBins.size() - 1, auxXArray, _yBins.size() - 1, auxYArray);
    _rootHisto->SetName(GetName());
    _rootHisto->SetTitle(_title);
    _rootHisto->SetXTitle(_xLabel);
    _rootHisto->SetYTitle(_yLabel);

    delete[] auxXArray;
    delete[] auxYArray;
  }

  /* The row index (first) corresponds to the position on the vertical (Y) axis. */
  _histo.Resize(_yBins.size() - 1, _xBins.size() - 1);

  _xUnderflow.resize(_yBins.size());
  _xOverflow.resize(_yBins.size());
  _yUnderflow.resize(_xBins.size());
  _yOverflow.resize(_xBins.size());

}

template<class HistoType>
Histo2DAction<HistoType>::~Histo2DAction() {

  delete _rootHisto;
  _rootHisto = NULL;
}

template<class HistoType>
Histo2DAction<HistoType>::Histo2DAction(const char *actionName, TString title, TString outFileBase, TString mode,
    bool outRoot, bool outText) :
  CollectionAction(actionName), _xBins(0), _yBins(0), _histo(0, 0), _rootHisto(NULL), _xUnderflow(0), _xOverflow(0),
      _yUnderflow(0), _yOverflow(0), _outFileBase(outFileBase), _mode(mode), _title(title), _xLabel(""), _yLabel(""),
      _outRoot(outRoot), _outText(outText) {

}

template<class HistoType>
void Histo2DAction<HistoType>::SetXAxis(TString label, vector<float> &bins) {

  _xBins = bins;
  _xLabel = label;

}

template<class HistoType>
void Histo2DAction<HistoType>::SetYAxis(TString label, vector<float> &bins) {

  _yBins = bins;
  _yLabel = label;

}

template<class HistoType>
void Histo2DAction<HistoType>::SetXAxis(TString label, TString binsFile) {

  // Reading the bins from file
  ifstream binListFile;
  binListFile.open(binsFile);

  TString auxString;
  _xBins.resize(0);
  while (!binListFile.eof()) {
    binListFile >> auxString;
    if (auxString != "") {
      _xBins.push_back(auxString.Atof());
    }
  }
  binListFile.close();

  _xLabel = label;

}

template<class HistoType>
void Histo2DAction<HistoType>::SetYAxis(TString label, TString binsFile) {

  // Reading the bins from file
  ifstream binListFile;
  binListFile.open(binsFile);

  TString auxString;
  _yBins.resize(0);
  while (!binListFile.eof()) {
    binListFile >> auxString;
    if (auxString != "") {
      _yBins.push_back(auxString.Atof());
    }
  }
  binListFile.close();

  _yLabel = label;

}

template<class HistoType>
void Histo2DAction<HistoType>::SetXAxis(TString label, unsigned int nBins, float min, float max, bool logBinning) {

  _xBins.resize(nBins + 1);

  if (!logBinning || (logBinning && min <= 0.)) {

#ifdef DEBUGPAMCUT
    if (logbinning && rigMin <= 0.)
    cout << "Warning: logarithmic binning was chosen for X axis but min <= 0. Using linear binning."
#endif

    float step = (max - min) / nBins;
    for (unsigned int i = 0; i < nBins + 1; i++) {
      _xBins[i] = min + i * step;
    }

  }
  else {

    double maxExp = log10(max / min);
    for (unsigned int i = 0; i < nBins + 1; i++) {
      _xBins[i] = min * pow(10., (double) i / ((double) nBins) * maxExp);
    }

  }

  _xLabel = label;
}

template<class HistoType>
void Histo2DAction<HistoType>::SetYAxis(TString label, unsigned int nBins, float min, float max, bool logBinning) {

  _yBins.resize(nBins + 1);

  if (!logBinning || (logBinning && min <= 0.)) {

#ifdef DEBUGPAMCUT
    if (logbinning && rigMin <= 0.)
    cout << "Warning: logarithmic binning was chosen for Y axis but min <= 0. Using linear binning."
#endif

    float step = (max - min) / nBins;
    for (unsigned int i = 0; i < nBins + 1; i++) {
      _yBins[i] = min + i * step;
    }

  }
  else {

    double maxExp = log10(max / min);
    for (unsigned int i = 0; i < nBins + 1; i++) {
      _yBins[i] = min * pow(10., (double) i / ((double) nBins) * maxExp);
    }

  }

  _yLabel = label;
}

template<class HistoType>
inline void Histo2DAction<HistoType>::Fill(double xValue, double yValue, double weight) {

  _rootHisto->Fill(xValue, yValue, weight);

  int xBin = 0, yBin = 0;

  bool UOflow = false;

  if (xValue < _xBins.front()) {
    xBin = -1;
    UOflow = true;
  }

  if (xValue > _xBins.back()) {
    xBin = _xBins.size();
    UOflow = true;
  }

  if (yValue < _yBins.front()) {
    yBin = -1;
    UOflow = true;
  }

  if (yValue > _yBins.back()) {
    yBin = _yBins.size();
    UOflow = true;
  }

  if (xBin == 0) {

    while (xValue >= _xBins[xBin]) {
      xBin++;
    }
    xBin--;
  }

  if (yBin == 0) {

    while (yValue >= _yBins[yBin]) {
      yBin++;
    }
    yBin--;
  }

  if (!UOflow) {
    // No under or over flow.
    _histo[yBin][xBin] += (HistoType) weight;
    return;
  }
  else {
    // An under or over flow has happened.
    if (xBin == -1) {
      if (yBin == -1) {
        _xUnderYUnderflow += (HistoType) weight;
        return;
      }
      else {
        if (yBin == (int) _yBins.size()) {
          _xUnderYOverflow += (HistoType) weight;
          return;
        }
        else {
          _xUnderflow[yBin] += (HistoType) weight;
          return;
        }
      }
    }

    if (xBin == (int) _xBins.size()) {
      if (yBin == -1) {
        _xOverYUnderflow += (HistoType) weight;
        return;
      }
      else {
        if (yBin == (int) _yBins.size()) {
          _xOverYOverflow += (HistoType) weight;
          return;
        }
        else {
          _xOverflow[yBin] += (HistoType) weight;
          return;
        }
      }
    }

    if (yBin == -1) {
      _yUnderflow[xBin] += (HistoType) weight;
      return;
    }

    if (yBin == (int) _yBins.size()) {
      _yOverflow[xBin] += (HistoType) weight;
      return;
    }

  }
}

template<class HistoType>
void Histo2DAction<HistoType>::Finalize() {

  if (_outFileBase != "") {
    // Write the ROOT file
    if (_rootHisto && _outRoot) {
      TFile outRootFile((_outFileBase + ".root"), _mode);
      outRootFile.cd();
      _rootHisto->Write();
      outRootFile.Close();
    }

    //Write the text file
    if (_outText) {
      ofstream outTextFile((_outFileBase + ".txt").Data(), ios_base::out);
      for (unsigned int i = 0; i < _histo.GetNRows(); i++) {
        for (unsigned int j = 0; j < _histo.GetNCols(); j++) {
          outTextFile << _histo[i][j] << "  ";
        }
        outTextFile << "\n";
      }
      outTextFile << endl;
      outTextFile.close();
    }
  }

}
#endif /* HISTO2DACTION_H_ */
1	/*
2	* Histo2DAction.h
3	*
4	* Created on: 01/set/2009
5	* Author: Nicola Mori
6	*/
7
8	/! @file Histo2DAction.h The Histo2DAction class declaration file. /
9
10	#ifndef HISTO2DACTION_H_
11	#define HISTO2DACTION_H_
12
13	#include "../../CollectionAction/CollectionAction.h"
14
15	#include <TH2I.h>
16	#include <TH2F.h>
17	#include <TH2D.h>
18
19	/*! @brief An abstract action that fills a 2-dimensional histogram.
20	*
21	* This abstract class provides all the common methods needed to produce 2-dimensional histograms,
22	* like reading the bins from a file, setting up the root histogram and so on. It handles histograms
23	* both as a ROOT histogram and as a matrix. The OnGood() method has to be implemented in children
24	* classes, with the specific physical variables to fill the histogram. Eg., a dE/dx vs. rigidity
25	* histogram class derived from Histo2DAction could have this OnGood() implementation:
26	*
27	* Fill(event->GetTrack(0)->GetTrkTrack()->GetRigidity(), event->GetTrack(0)->GetTrkTrack()->GetDEDX());
28	*
29	* Fill() automatically fills the ROOT and the matrix histogram.
30	* The template argument HistoType is the type of histogram (Int_t, Double_t,...). In current
31	* implementation, ROOT histograms are only supported for Int_t, Float_t and Double_t. For all the
32	* other types, only the the matrix histogram with text file output will be produced. If you want to
33	* implement some new types of ROOT histograms, please specialize the template definitions of _CreateHisto()
34	* and ~Histo2DAction() (see the specializations in the .cpp file).
35	*
36	* */
37	template<class HistoType>
38	class Histo2DAction: public CollectionAction {
39	public:
40
41	/*! @brief Constructor.
42	*
43	* The histogram binning is defined by the content of the bins vector.
44	*
45	* @param actionName The action's name.
46	* @param title The ROOT histogram title.
47	* @param outFileBase The file base name for the histogram output. If "", no output file will be produced.
48	* @param mode The mode of ROOT file creation (see documentation of TFile constructor
49	* in ROOT's reference guide).
50	* @param outRoot If true, an output ROOT file named outFileBase + ".root" will be produced.
51	* @param outText If true, an output text file named outFileBase + ".txt" will be produced. It will overwrite an
52	* eventually existing file with the same name.
53	*/
54	Histo2DAction(const char *actionName, TString title = "", TString outFileBase = "", TString mode = "UPDATE",
55	bool outRoot = false, bool outText = false);
56
57	/*! @brief Destructor
58	*
59	* This has to be specialized for each kind of ROOT histogram.
60	*
61	* */
62	~Histo2DAction();
63
64	/*! @brief Sets the X axis using a binning read from a a vector.
65	*
66	* @param label The axis' label.
67	* @param bins A vector containing the histogram binning (with sign, eventually; from lowest to highest).
68	*/
69	void SetXAxis(TString label, vector<float> &bins);
70	/*! @brief Sets the X axis reading the binning from a file.
71	*
72	* @param label The axis' label.
73	* @param binsFile The file containing the bins (with sign, eventually; from lowest to highest).
74	*/
75	void SetXAxis(TString label, TString binsFile);
76	/*! @brief Sets the X axis specifying the binning parameters.
77	*
78	* @param label The axis' label.
79	* @param nBins The number of bins.
80	* @param min The lower limit of the axis.
81	* @param max The upper limit of the axis.
82	* @param logBinning If true, bins will be logarithmically spaced.
83	*/
84	void SetXAxis(TString label, unsigned int nBins, float min, float max, bool logBinning = false);
85
86	/*! @brief Sets the Y axis using a binning read from a a vector.
87	*
88	* @param label The axis' label.
89	* @param bins A vector containing the histogram binning (with sign, eventually; from lowest to highest).
90	*/
91	void SetYAxis(TString label, vector<float> &bins);
92	/*! @brief Sets the Y axis reading the binning from a file.
93	*
94	* @param label The axis' label.
95	* @param binsFile The file containing the bins (with sign, eventually; from lowest to highest).
96	*/
97	void SetYAxis(TString label, TString binsFile);
98
99	/*! @brief Sets the Y axis specifying the binning parameters.
100	*
101	* @param label The axis' label.
102	* @param nBins The number of bins.
103	* @param min The lower limit of the axis.
104	* @param max The upper limit of the axis.
105	* @param logBinning If true, bins will be logarithmically spaced.
106	*/
107	void SetYAxis(TString label, unsigned int nBins, float min, float max, bool logBinning = false);
108
109	/*! @brief Sets the ROOT histogram's title.
110	*
111	* @param title The histogram title as it will appear on the histogram itself.
112	*/
113	void SetTitle(TString &title) {
114	_title = title;
115	}
116	/*! @brief Sets up the histogram
117	*
118	* This routine effectively prepares the histogram, after the desired parameters has been set by #SetXAxis() and #SetYAxis().
119	*
120	* @param events Pointer to PamLevel2 events (unused).
121	*/
122	void Setup(PamLevel2 *events) {
123	CollectionAction::Setup(events);
124	_InitHistos();
125
126	}
127
128	/*! @ brief Post-analysis tasks.
129	*
130	* This method writes the output on a ROOT file if the proper option was set in the constructor.
131	*/
132	void Finalize();
133
134	/*! @brief Returns the histogram.
135	*
136	* Element [i][j] is the value of the i-th bin on the Y axis and on the j-th bin on the X axis. This sort
137	* of index inversion is due to logically maintain the Y values on the vertical axis of the matrix, which
138	* is indexed by the row number (which conventionally is the first index of a matrix element).
139	*
140	* @return A reference to a matrix containing the values of the bins of the histogram.
141	*/
142	SimpleMatrix<HistoType> &GetHisto() {
143	return _histo;
144	}
145
146	/*! Fills the ROOT and the vector histogram.
147	*
148	* @param xValue The value of the X coordinate associated to the event.
149	* @param yValue The value of the Y coordinate associated to the event.
150	* @param weight The weight which will be applied to the event.
151	*/
152	void Fill(double xValue, double yValue, double weight = 1.);
153
154	/*! @brief Gets the X overflow histogram.
155	*
156	* The returned vector contains the histogram filled with the X overflow events, eg.,
157	* those events whose X variable falls above the upper limit of the X axis. This histogram
158	* is binned like the Y axis.
159	*
160	* @return The X overflow histogram.
161	*/
162	vector<HistoType>& GetXOverflow() {
163	return _xOverflow;
164	}
165
166	/*! @brief Gets the X underflow histogram.
167	*
168	* The returned vector contains the histogram filled with the X underflow events, eg.,
169	* those events whose X variable falls below the lower limit of the X axis. This histogram
170	* is binned like the Y axis.
171	*
172	* @return The X underflow histogram.
173	*/
174	vector<HistoType>& GetXUnderflow() {
175	return _xUnderflow;
176	}
177
178	/*! @brief Gets the Y overflow histogram.
179	*
180	* The returned vector contains the histogram filled with the Y overflow events, eg.,
181	* those events whose Y variable falls above the upper limit of the Y axis. This histogram
182	* is binned like the X axis.
183	*
184	* @return The Y overflow histogram.
185	*/
186	vector<HistoType>& GetYOverflow() {
187	return _yOverflow;
188	}
189
190	/*! @brief Gets the Y underflow histogram.
191	*
192	* The returned vector contains the histogram filled with the Y underflow events, eg.,
193	* those events whose Y variable falls below the lower limit of the Y axis. This histogram
194	* is binned like the X axis.
195	*
196	* @return The Y underflow histogram.
197	*/
198	vector<HistoType>& GetYUnderflow() {
199	return _yUnderflow;
200	}
201
202	/*! @brief Gets the X-Y overflow histogram.
203	*
204	* This single-bin histogram is built with events which fall above the lower limits of both the
205	* X and Y axis.
206	*
207	* @return The X-Y overflow histogram.
208	*/
209	HistoType GetXOverYOverflow() {
210	return _xOverYOverflow;
211	}
212
213	/*! @brief Gets the X-Y underflow histogram.
214	*
215	* This single-bin histogram is built with events fall below the lower limits of both the X and Y axis.
216	*
217	* @return The X-Y overflow histogram.
218	*/
219	HistoType GetXUnderYUnderflow() {
220	return _xUnderYUnderflow;
221	}
222	/*! @brief Gets the (X over - Y under)flow histogram.
223	*
224	* This single-bin histogram is built with events fall above the lower limit of the Xaxis and below
225	* that of the Y axis.
226	*
227	* @return The (X over -Y under)flow histogram.
228	*/
229	HistoType GetXOverYUnderflow() {
230	return _xOverYUnderflow;
231	}
232
233	/*! @brief Gets the (X under - Y over)flow histogram.
234	*
235	* This single-bin histogram is built with events fall below the lower limit of the X axis and above
236	* that of the Y axis.
237	*
238	* @return The (X under -Y over)flow histogram.
239	*/
240	HistoType GetXUnderYOverflow() {
241	return _xUnderYOverflow;
242	}
243
244	protected:
245
246	/! @brief The vector containing the limits of the X bins(from lower to higher). /
247	std::vector<float> _xBins;
248	/! @brief The vector containing the limits of the Y bins(from lower to higher). /
249	std::vector<float> _yBins;
250	/! @brief A matrix containing the value of the histogram for each X-Y bin. /
251	SimpleMatrix<HistoType> _histo;
252	/! @brief The ROOT histogram. /
253	TH2 *_rootHisto;
254
255	private:
256
257	vector<HistoType> _xUnderflow, _xOverflow, _yUnderflow, _yOverflow;
258	HistoType _xUnderYUnderflow, _xOverYOverflow, _xUnderYOverflow, _xOverYUnderflow;
259	TString _outFileBase;
260	TString _mode;
261	TString _title, _xLabel, _yLabel;
262	bool _outRoot;
263	bool _outText;
264
265	void _CreateHisto();
266	void _InitHistos();
267	};
268
269	template<class HistoType>
270	void Histo2DAction<HistoType>::_CreateHisto() {
271
272	// No ROOT histogram for generic type; see template specializations in .cpp file.
273	_rootHisto = NULL;
274	}
275
276	template<class HistoType>
277	void Histo2DAction<HistoType>::_InitHistos() {
278
279	_CreateHisto();
280
281	if (_xBins.size() < 2) {
282	_xBins.resize(2);
283	_xBins[0] = 0.;
284	_xBins[1] = 1.;
285	}
286
287	if (_yBins.size() < 2) {
288	_yBins.resize(2);
289	_yBins[0] = 0.;
290	_yBins[1] = 1.;
291	}
292
293	if (_rootHisto) {
294	Double_t *auxXArray = new Double_t[_xBins.size()];
295
296	for (unsigned int i = 0; i < _xBins.size(); i++) {
297	auxXArray[i] = _xBins[i];
298	}
299
300	Double_t *auxYArray = new Double_t[_yBins.size()];
301
302	for (unsigned int i = 0; i < _yBins.size(); i++) {
303	auxYArray[i] = _yBins[i];
304	}
305
306	_rootHisto->SetBins(_xBins.size() - 1, auxXArray, _yBins.size() - 1, auxYArray);
307	_rootHisto->SetName(GetName());
308	_rootHisto->SetTitle(_title);
309	_rootHisto->SetXTitle(_xLabel);
310	_rootHisto->SetYTitle(_yLabel);
311
312	delete[] auxXArray;
313	delete[] auxYArray;
314	}
315
316	/* The row index (first) corresponds to the position on the vertical (Y) axis. */
317	_histo.Resize(_yBins.size() - 1, _xBins.size() - 1);
318
319	_xUnderflow.resize(_yBins.size());
320	_xOverflow.resize(_yBins.size());
321	_yUnderflow.resize(_xBins.size());
322	_yOverflow.resize(_xBins.size());
323
324	}
325
326	template<class HistoType>
327	Histo2DAction<HistoType>::~Histo2DAction() {
328
329	delete _rootHisto;
330	_rootHisto = NULL;
331	}
332
333	template<class HistoType>
334	Histo2DAction<HistoType>::Histo2DAction(const char *actionName, TString title, TString outFileBase, TString mode,
335	bool outRoot, bool outText) :
336	CollectionAction(actionName), _xBins(0), _yBins(0), _histo(0, 0), _rootHisto(NULL), _xUnderflow(0), _xOverflow(0),
337	_yUnderflow(0), _yOverflow(0), _outFileBase(outFileBase), _mode(mode), _title(title), _xLabel(""), _yLabel(""),
338	_outRoot(outRoot), _outText(outText) {
339
340	}
341
342	template<class HistoType>
343	void Histo2DAction<HistoType>::SetXAxis(TString label, vector<float> &bins) {
344
345	_xBins = bins;
346	_xLabel = label;
347
348	}
349
350	template<class HistoType>
351	void Histo2DAction<HistoType>::SetYAxis(TString label, vector<float> &bins) {
352
353	_yBins = bins;
354	_yLabel = label;
355
356	}
357
358	template<class HistoType>
359	void Histo2DAction<HistoType>::SetXAxis(TString label, TString binsFile) {
360
361	// Reading the bins from file
362	ifstream binListFile;
363	binListFile.open(binsFile);
364
365	TString auxString;
366	_xBins.resize(0);
367	while (!binListFile.eof()) {
368	binListFile >> auxString;
369	if (auxString != "") {
370	_xBins.push_back(auxString.Atof());
371	}
372	}
373	binListFile.close();
374
375	_xLabel = label;
376
377	}
378
379	template<class HistoType>
380	void Histo2DAction<HistoType>::SetYAxis(TString label, TString binsFile) {
381
382	// Reading the bins from file
383	ifstream binListFile;
384	binListFile.open(binsFile);
385
386	TString auxString;
387	_yBins.resize(0);
388	while (!binListFile.eof()) {
389	binListFile >> auxString;
390	if (auxString != "") {
391	_yBins.push_back(auxString.Atof());
392	}
393	}
394	binListFile.close();
395
396	_yLabel = label;
397
398	}
399
400	template<class HistoType>
401	void Histo2DAction<HistoType>::SetXAxis(TString label, unsigned int nBins, float min, float max, bool logBinning) {
402
403	_xBins.resize(nBins + 1);
404
405	if (!logBinning \|\| (logBinning && min <= 0.)) {
406
407	#ifdef DEBUGPAMCUT
408	if (logbinning && rigMin <= 0.)
409	cout << "Warning: logarithmic binning was chosen for X axis but min <= 0. Using linear binning."
410	#endif
411
412	float step = (max - min) / nBins;
413	for (unsigned int i = 0; i < nBins + 1; i++) {
414	_xBins[i] = min + i * step;
415	}
416
417	}
418	else {
419
420	double maxExp = log10(max / min);
421	for (unsigned int i = 0; i < nBins + 1; i++) {
422	_xBins[i] = min * pow(10., (double) i / ((double) nBins) * maxExp);
423	}
424
425	}
426
427	_xLabel = label;
428	}
429
430	template<class HistoType>
431	void Histo2DAction<HistoType>::SetYAxis(TString label, unsigned int nBins, float min, float max, bool logBinning) {
432
433	_yBins.resize(nBins + 1);
434
435	if (!logBinning \|\| (logBinning && min <= 0.)) {
436
437	#ifdef DEBUGPAMCUT
438	if (logbinning && rigMin <= 0.)
439	cout << "Warning: logarithmic binning was chosen for Y axis but min <= 0. Using linear binning."
440	#endif
441
442	float step = (max - min) / nBins;
443	for (unsigned int i = 0; i < nBins + 1; i++) {
444	_yBins[i] = min + i * step;
445	}
446
447	}
448	else {
449
450	double maxExp = log10(max / min);
451	for (unsigned int i = 0; i < nBins + 1; i++) {
452	_yBins[i] = min * pow(10., (double) i / ((double) nBins) * maxExp);
453	}
454
455	}
456
457	_yLabel = label;
458	}
459
460	template<class HistoType>
461	inline void Histo2DAction<HistoType>::Fill(double xValue, double yValue, double weight) {
462
463	_rootHisto->Fill(xValue, yValue, weight);
464
465	int xBin = 0, yBin = 0;
466
467	bool UOflow = false;
468
469	if (xValue < _xBins.front()) {
470	xBin = -1;
471	UOflow = true;
472	}
473
474	if (xValue > _xBins.back()) {
475	xBin = _xBins.size();
476	UOflow = true;
477	}
478
479	if (yValue < _yBins.front()) {
480	yBin = -1;
481	UOflow = true;
482	}
483
484	if (yValue > _yBins.back()) {
485	yBin = _yBins.size();
486	UOflow = true;
487	}
488
489	if (xBin == 0) {
490
491	while (xValue >= _xBins[xBin]) {
492	xBin++;
493	}
494	xBin--;
495	}
496
497	if (yBin == 0) {
498
499	while (yValue >= _yBins[yBin]) {
500	yBin++;
501	}
502	yBin--;
503	}
504
505	if (!UOflow) {
506	// No under or over flow.
507	_histo[yBin][xBin] += (HistoType) weight;
508	return;
509	}
510	else {
511	// An under or over flow has happened.
512	if (xBin == -1) {
513	if (yBin == -1) {
514	_xUnderYUnderflow += (HistoType) weight;
515	return;
516	}
517	else {
518	if (yBin == (int) _yBins.size()) {
519	_xUnderYOverflow += (HistoType) weight;
520	return;
521	}
522	else {
523	_xUnderflow[yBin] += (HistoType) weight;
524	return;
525	}
526	}
527	}
528
529	if (xBin == (int) _xBins.size()) {
530	if (yBin == -1) {
531	_xOverYUnderflow += (HistoType) weight;
532	return;
533	}
534	else {
535	if (yBin == (int) _yBins.size()) {
536	_xOverYOverflow += (HistoType) weight;
537	return;
538	}
539	else {
540	_xOverflow[yBin] += (HistoType) weight;
541	return;
542	}
543	}
544	}
545
546	if (yBin == -1) {
547	_yUnderflow[xBin] += (HistoType) weight;
548	return;
549	}
550
551	if (yBin == (int) _yBins.size()) {
552	_yOverflow[xBin] += (HistoType) weight;
553	return;
554	}
555
556	}
557	}
558
559	template<class HistoType>
560	void Histo2DAction<HistoType>::Finalize() {
561
562	if (_outFileBase != "") {
563	// Write the ROOT file
564	if (_rootHisto && _outRoot) {
565	TFile outRootFile((_outFileBase + ".root"), _mode);
566	outRootFile.cd();
567	_rootHisto->Write();
568	outRootFile.Close();
569	}
570
571	//Write the text file
572	if (_outText) {
573	ofstream outTextFile((_outFileBase + ".txt").Data(), ios_base::out);
574	for (unsigned int i = 0; i < _histo.GetNRows(); i++) {
575	for (unsigned int j = 0; j < _histo.GetNCols(); j++) {
576	outTextFile << _histo[i][j] << " ";
577	}
578	outTextFile << "\n";
579	}
580	outTextFile << endl;
581	outTextFile.close();
582	}
583	}
584
585	}
586	#endif /* HISTO2DACTION_H_ */