WFMath  0.3.12
probability.h
1 // probability.h (probability and statistics functions)
2 //
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4 // Copyright (C) 2002 The WorldForge Project
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22 
23 // Author: Ron Steinke
24 // Created: 2002-1-23
25 
26 // These functions will use double instead of CoordType, for accuracy
27 
28 #ifndef WFMATH_PROBABILTIY_H
29 #define WFMATH_PROBABILTIY_H
30 
31 namespace WFMath {
32 
34 
40 double GaussianConditional(double mean, double stddev, double val);
42 double Gaussian(double mean, double stddev, double val);
43 
45 
49 double PoissonConditional(double mean, unsigned int step);
51 double Poisson(double mean, unsigned int step);
52 
54 double LogFactorial(unsigned int n);
56 double Factorial(unsigned int n);
57 
59 double LogGamma(double z);
61 double Gamma(double z);
62 
63 } // namespace WFMath
64 
65 #endif // WFMATH_PROBABILITY_H
double Gaussian(double mean, double stddev, double val)
Gives the value of the Gaussian distribution at position val.
double Poisson(double mean, unsigned int step)
Gives the value of the Poisson distribution at position step.
double PoissonConditional(double mean, unsigned int step)
Gives the conditional probability of the Poisson distribution at position step.
double GaussianConditional(double mean, double stddev, double val)
Gives the conditional probability of the Gaussian distribution at position val.
double Gamma(double z)
Euler's Gamma function.
double Factorial(unsigned int n)
Gives n!
double LogFactorial(unsigned int n)
Gives the natural log of n!
double LogGamma(double z)
The natural log of Euler's Gamma function.