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25 // 25 //
26 // G4StatAnalysis 26 // G4StatAnalysis
27 // 27 //
28 // Class description: 28 // Class description:
29 // 29 //
30 // Class for statistical analysis of random v 30 // Class for statistical analysis of random variable
31 // 31 //
32 // Adapted from: 32 // Adapted from:
33 // Lux, I. 33 // Lux, I.
34 // Monte Carlo particle transport methods 34 // Monte Carlo particle transport methods: neutron and photon
35 // calculations/authors, Ivan Lux and Las 35 // calculations/authors, Ivan Lux and Laszlo Koblinger.
36 // ISBN 0-8493-6074-9 36 // ISBN 0-8493-6074-9
37 // 1. Neutron transport theory. 2. Photon tra 37 // 1. Neutron transport theory. 2. Photon transport theory.
38 // 3. Monte Carlo method. I. Koblinger, Laszl 38 // 3. Monte Carlo method. I. Koblinger, Laszlo. II. Title.
39 // QC793.5.N4628L88 1990 530.1 '38'20 39 // QC793.5.N4628L88 1990 530.1 '38'20
40 40
41 // Author: J.Madsen, 25.10.2018 41 // Author: J.Madsen, 25.10.2018
42 // ------------------------------------------- 42 // --------------------------------------------------------------------
43 #ifndef G4StatAnalysis_hh 43 #ifndef G4StatAnalysis_hh
44 #define G4StatAnalysis_hh 1 44 #define G4StatAnalysis_hh 1
45 45
46 #include <cmath> 46 #include <cmath>
47 #include <fstream> 47 #include <fstream>
48 #include <iomanip> 48 #include <iomanip>
49 #include <iostream> 49 #include <iostream>
50 #include <limits> 50 #include <limits>
51 #include <optional> <<
52 51
53 #include "globals.hh" 52 #include "globals.hh"
54 #include "tls.hh" 53 #include "tls.hh"
55 54
56 #include "G4Allocator.hh" 55 #include "G4Allocator.hh"
57 #include "G4Timer.hh" 56 #include "G4Timer.hh"
58 #include "G4Types.hh" 57 #include "G4Types.hh"
59 #include "G4ios.hh" 58 #include "G4ios.hh"
60 59
61 class G4StatAnalysis 60 class G4StatAnalysis
62 { 61 {
63 public: 62 public:
64 inline G4StatAnalysis(); 63 inline G4StatAnalysis();
65 inline ~G4StatAnalysis() {} 64 inline ~G4StatAnalysis() {}
66 65
67 // Accumulated values 66 // Accumulated values
68 inline G4double GetMean() const; 67 inline G4double GetMean() const;
69 inline const G4double& GetSum() const; 68 inline const G4double& GetSum() const;
70 inline const G4double& GetSumSquared() const 69 inline const G4double& GetSumSquared() const;
71 inline const G4double& GetSum1() const; 70 inline const G4double& GetSum1() const;
72 inline const G4double& GetSum2() const; 71 inline const G4double& GetSum2() const;
73 inline const G4int& GetHits() const; 72 inline const G4int& GetHits() const;
74 inline G4int GetNumNonZero() const; 73 inline G4int GetNumNonZero() const;
75 inline G4int GetNumZero() const; 74 inline G4int GetNumZero() const;
76 75
77 // Some control over accumulated variables 76 // Some control over accumulated variables
78 inline void SetSum(const G4double& val); 77 inline void SetSum(const G4double& val);
79 inline void SetSumSquared(const G4double& va 78 inline void SetSumSquared(const G4double& val);
80 inline void SetSum1(const G4double& val); 79 inline void SetSum1(const G4double& val);
81 inline void SetSum2(const G4double& val); 80 inline void SetSum2(const G4double& val);
82 inline void SetHits(const G4int& val); 81 inline void SetHits(const G4int& val);
83 inline void SetZero(const G4int& val); 82 inline void SetZero(const G4int& val);
84 83
85 // Computed values 84 // Computed values
86 inline G4double GetFOM() const; 85 inline G4double GetFOM() const;
87 inline G4double GetRelativeError() const; 86 inline G4double GetRelativeError() const;
88 inline G4double GetStdDev() const; 87 inline G4double GetStdDev() const;
89 inline G4double GetVariance() const; 88 inline G4double GetVariance() const;
90 inline G4double GetCoeffVariation() const; 89 inline G4double GetCoeffVariation() const;
91 inline G4double GetEfficiency() const; 90 inline G4double GetEfficiency() const;
92 inline G4double GetR2Int() const; 91 inline G4double GetR2Int() const;
93 inline G4double GetR2Eff() const; 92 inline G4double GetR2Eff() const;
94 93
95 // Conversion 94 // Conversion
96 inline operator G4double() const; 95 inline operator G4double() const;
97 96
98 // Modifications 97 // Modifications
99 inline void Reset(); 98 inline void Reset();
100 inline void Add(const G4double& _val, const 99 inline void Add(const G4double& _val, const G4double& _weight = 1.0);
101 inline void Rescale(const G4double& factor); 100 inline void Rescale(const G4double& factor);
102 101
103 // Output 102 // Output
104 inline void PrintInfo(std::ostream& os, cons 103 inline void PrintInfo(std::ostream& os, const std::string& = "") const;
105 104
106 // Operators 105 // Operators
107 inline G4StatAnalysis& operator+=(const G4do 106 inline G4StatAnalysis& operator+=(const G4double& _val);
108 inline G4StatAnalysis& operator/=(const G4do 107 inline G4StatAnalysis& operator/=(const G4double& _val);
109 inline G4StatAnalysis& operator+=(const G4St 108 inline G4StatAnalysis& operator+=(const G4StatAnalysis&);
110 inline G4StatAnalysis& operator-=(const G4St 109 inline G4StatAnalysis& operator-=(const G4StatAnalysis&);
111 110
112 // Allocators 111 // Allocators
113 inline void* operator new(std::size_t); 112 inline void* operator new(std::size_t);
114 inline void operator delete(void*); 113 inline void operator delete(void*);
115 114
116 // Timing (member functions) 115 // Timing (member functions)
117 inline G4double GetCpuTime() const; 116 inline G4double GetCpuTime() const;
118 // Timing (static functions) 117 // Timing (static functions)
119 static tms* GetCpuClock() << 118 static tms*& GetCpuClock()
120 { 119 {
121 G4ThreadLocalStatic std::optional<tms> _in << 120 G4ThreadLocalStatic tms* _instance = nullptr;
122 if(_instance == std::nullopt) << 121 if(!_instance)
123 { 122 {
124 _instance = tms(); << 123 _instance = new tms;
125 times(&_instance.value()); << 124 times(_instance);
126 } 125 }
127 return &_instance.value(); << 126 return _instance;
128 } 127 }
129 // Note: this above implementation was imple 128 // Note: this above implementation was implemented in such a way as to
130 // conserve memory by eliminated every insta 129 // conserve memory by eliminated every instance from requiring their own
131 // timing variables. The ResetCpuClock funct 130 // timing variables. The ResetCpuClock function below is called at the
132 // beginning of the run (G4Run constructor) 131 // beginning of the run (G4Run constructor) to attempt to ensure the
133 // FOM is not skewed by multiple runs -- it 132 // FOM is not skewed by multiple runs -- it may be necessary to
134 // manually invoke in some situations 133 // manually invoke in some situations
135 static void ResetCpuClock() 134 static void ResetCpuClock()
136 { 135 {
137 tms* _clock = GetCpuClock(); << 136 tms*& _clock = GetCpuClock();
138 times(_clock); 137 times(_clock);
139 } 138 }
140 139
141 // friend operator for output 140 // friend operator for output
142 friend std::ostream& operator<<(std::ostream 141 friend std::ostream& operator<<(std::ostream& os, const G4StatAnalysis& obj)
143 { 142 {
144 obj.PrintInfo(os); 143 obj.PrintInfo(os);
145 return os; 144 return os;
146 } 145 }
147 // friend operator for addition 146 // friend operator for addition
148 friend const G4StatAnalysis operator+(const 147 friend const G4StatAnalysis operator+(const G4StatAnalysis& lhs,
149 const 148 const G4StatAnalysis& rhs)
150 { 149 {
151 return G4StatAnalysis(lhs) += rhs; 150 return G4StatAnalysis(lhs) += rhs;
152 } 151 }
153 // friend operator for subtraction 152 // friend operator for subtraction
154 friend const G4StatAnalysis operator-(const 153 friend const G4StatAnalysis operator-(const G4StatAnalysis& lhs,
155 const 154 const G4StatAnalysis& rhs)
156 { 155 {
157 return G4StatAnalysis(lhs) -= rhs; 156 return G4StatAnalysis(lhs) -= rhs;
158 } 157 }
159 158
160 private: 159 private:
161 G4double fSum1 = 0.0; // summation of each 160 G4double fSum1 = 0.0; // summation of each history^1
162 G4double fSum2 = 0.0; // summation from eac 161 G4double fSum2 = 0.0; // summation from each history^2
163 G4int fHits = 0; // number of scoring 162 G4int fHits = 0; // number of scoring histories
164 G4int fZero = 0; // number of historie 163 G4int fZero = 0; // number of histories that were not greater than 0.0
165 }; 164 };
166 165
167 #include "G4StatAnalysis.icc" 166 #include "G4StatAnalysis.icc"
168 167
169 #endif 168 #endif
170 169