/[PAMELA software]/PamCut/Collections/EffCollection/EffCollection.h
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revision 1.3 by pam-fi, Fri Aug 14 10:32:14 2009 UTC revision 1.5 by pam-fi, Fri Sep 25 15:02:03 2009 UTC
# Line 12  Line 12 
12    
13  #include "../VerboseCollection/VerboseCollection.h"  #include "../VerboseCollection/VerboseCollection.h"
14    
15    /*! @enum Flags to select the method of error computation */
16    enum EffRigCollection_ErrMethod {
17      EFFRIG_SERGIO, ///< Flag for Sergio Ricciarini's Fortran routine
18      EFFRIG_ROOT
19    ///< Flag for ROOT TGraphAsymErrors::BayesDivide()
20    };
21    
22  /*! @brief A verbose collection which computes the efficiency of a set of cuts.  /*! @brief A verbose collection which computes the efficiency of a set of cuts.
23   *   *
24   * This class subdivides the cuts it contains into two classes: selection and detector   * This class subdivides the cuts it contains into two classes: selection and detector
# Line 23  Line 30 
30   * the cuts.   * the cuts.
31   * This class implements specific methods to add selection and detector cuts; cuts added   * This class implements specific methods to add selection and detector cuts; cuts added
32   * with the standard #AddCut method will be treated as detector cuts. The same for actions.   * with the standard #AddCut method will be treated as detector cuts. The same for actions.
33   *   * Error computation is done either using Sergio Ricciarini's Fortran routine or ROOT's
34     * TGraphAsimmErrors::BayesDivide(). For both methods, the efficiency is arbitrarily set to
35     * 1.1 when less than 8 events survive the selection cuts. This is needed to avoid convergence
36     * problems in Sergio's routine, and the ROOT output has been consequently adapted to this
37     * convention.
38   *   *
39   */   */
40  class EffCollection: public VerboseCollection {  class EffCollection: public VerboseCollection {
# Line 35  public: Line 46  public:
46     * @param collectionName The collection's name.     * @param collectionName The collection's name.
47     * @param outFileBase The output file base name. If "", no file output will be produced; otherwise,     * @param outFileBase The output file base name. If "", no file output will be produced; otherwise,
48     *                    a file named outFilebase + "-eff.txt" will be produced, containing the number of     *                    a file named outFilebase + "-eff.txt" will be produced, containing the number of
49     *                    events surviving the detector cuts (1st column), the selection cuts (2nd column)     *                    events surviving the detector cuts (1st column), the selection cuts (2nd column),
50     *                    and the efficiency (3rd column).     *                    the efficiency (3rd column), the lower (4th column) and upper (5th column) length
51       *                    of the efficiency's error bar.
52       * @param errMethod The method to use for error computation. Possible values are defined in #EffRigCollection_ErrMethod.
53     */     */
54    EffCollection(const char *collectionName, TString outFileBase = "");    EffCollection(const char *collectionName, TString outFileBase = "", int errMethod = EFFRIG_ROOT);
55    
56    /*! @brief Destructor. */    /*! @brief Destructor. */
57    ~EffCollection() {    ~EffCollection() {
# Line 124  protected: Line 137  protected:
137    /*! The base name of the output file. */    /*! The base name of the output file. */
138    TString _outFileBase;    TString _outFileBase;
139    
140      /*! The method used for error computation. */
141      int _errMethod;
142    
143    /*! The number of events surviving the detector cuts. */    /*! The number of events surviving the detector cuts. */
144    unsigned int _det;    unsigned int _det;
145    
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