Random Class Reference

Random numbers engine with additional distributions. More...

#include <Random.h>

Public Member Functions
	Random (int32_t seed)
	constructor to set the seed
	Random ()
	constructor to autogenerate a seed
	Random (int32_t seed, bool f)
	constructor to set the seed and the modified state
	Random (const Random &r)=default
	copy constructor (copies current state)
Random &	operator= (const Random &r)=default
	overloaded assignment (replaces state)
int32_t	getSeed ()
	Return the current seed value.
Utility functions
void	reset (int32_t seed)
	reset the seed explicitly
void	reset ()
	reset seed from current process id
Continuous Distributions
double	beta (double v, double w, double xMin=0., double xMax=1.)
	Beta (v > 0. and w > 0.)
double	gamma (double a, double b, double c)
double	exponential (double a=0., double c=1.)
double	normal (double mu=0., double sigma=1.)
	Normal (Gaussian)
double	uniform (double xMin=0., double xMax=1.)
	Uniform on [xMin,xMax)
Discrete Distributions
int	poisson (double mu)
	Poisson.
int	uniformDiscrete (int i, int j)

Friends
bool	operator== (const Random &a, const Random &b)
	Compare internal state of generators
bool	operator!= (const Random &a, const Random &b)
	Compare internal state of generators

Detailed Description

Random numbers engine with additional distributions.

See also

Ref: Richard Saucier, "Computer Generation of Statistical Distributions," ARL-TR-2168, US Army Research Laboratory, Aberdeen Proving Ground, MD, 21005-5068, March 2000.

Ref: Tausworthe, Robert C., "Random Numbers Generated by Linear Recurrence Modulo Two," Mathematics of Computation, vol. 19, pp. 201-209, 1965.

Member Function Documentation

exponential()

double Random::exponential	(	double	a = 0.,
		double	c = 1.
	)

Exponential location a, shape c

gamma()

double Random::gamma	(	double	a,
		double	b,
		double	c
	)

Gamma location a, scale b, shape c

uniformDiscrete()

int Random::uniformDiscrete	(	int	i,
		int	j
	)

Uniform Discrete inclusive i to j

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The documentation for this class was generated from the following file:

• include/Random.h