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G4StatDouble.hh
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30 // Class G4StatDouble
31 //
32 // Class description:
33 //
34 // Class providing simple "one variable statistics" capability.
35 
36 // Original Author: Giovanni Santin (ESA) - October 2005 in GRAS tool
37 // Adaptation and comments by: John Apostolakis (CERN) - November 2011
38 
39 #ifndef G4StatDouble_h
40 #define G4StatDouble_h 1
41 
42 #include "globals.hh"
43 
45 {
46 
47  public:
48  G4StatDouble();
50  virtual ~G4StatDouble();
51 
52  public:
53 
54  G4StatDouble(const G4StatDouble&) = default;
55 
57  {
58  reset();
59  fill(rhs);
60  return *this;
61  }
63  {
64  m_sum_wx = rhs.m_sum_wx;
65  m_sum_wx2 = rhs.m_sum_wx2;
66  m_n = rhs.m_n;
67  m_sum_w = rhs.m_sum_w;
68  m_sum_w2 = rhs.m_sum_w2;
69  m_scale = rhs.m_scale;
70  return *this;
71  }
73  { fill(rhs); return *this; }
75  { add(&rhs); return *this; }
76 
77  public:
78 
79  void reset();
80  void fill(G4double x, G4double weight=1.);
81  // Add new data point: value "x" with weight
82  void scale(G4double);
83  // Reset scale
84 
85  G4double mean() const;
86  G4double rms();
87  // The moments
88 
89  G4double mean(G4double ext_sum_w) const;
90  // Mean scaled to sum of weights
91  G4double rms(G4double ext_sum_w, G4int ext_n);
92  // RMS scaled to sum of weights
93 
94  void add(const G4StatDouble*);
95  // merge 2 statistics
96 
97  inline G4int n() const { return m_n; }
98  inline G4double sum_w() const { return m_sum_w; }
99  inline G4double sum_w2() const { return m_sum_w2; }
100  inline G4double sum_wx() const { return m_sum_wx; }
101  inline G4double sum_wx2() const { return m_sum_wx2; }
102 
103  protected:
104 
106 
107  protected:
108 
115 };
116 
117 #endif