planck_rng Class Reference

#include <planck_rng.h>

List of all members.

Public Member Functions

planck_rng (unsigned int x1=123456789, unsigned int y1=362436069, unsigned int z1=521288629, unsigned int w1=88675123)

void seed (unsigned int x1=123456789, unsigned int y1=362436069, unsigned int z1=521288629, unsigned int w1=88675123)

unsigned int int_rand_uni ()

double rand_uni ()

double rand_gauss ()

double rand_exp ()

Detailed Description

C++ port of the xorshift generator xor128() described in Marsaglia, Journal of Statistical Software 2003, vol 8. It has a period of 2^128 - 1.

Definition at line 47 of file planck_rng.h.

Constructor & Destructor Documentation

planck_rng::planck_rng	(	unsigned int	x1 = `123456789`,
		unsigned int	y1 = `362436069`,
		unsigned int	z1 = `521288629`,
		unsigned int	w1 = `88675123`
	)			`[inline]`

Initializes the generator with 0 to 4 seed values.

Definition at line 82 of file planck_rng.h.

Member Function Documentation

void planck_rng::seed	(	unsigned int	x1 = `123456789`,
		unsigned int	y1 = `362436069`,
		unsigned int	z1 = `521288629`,
		unsigned int	w1 = `88675123`
	)			`[inline]`

Re-initializes the generator with 0 to 4 seed values.

Definition at line 92 of file planck_rng.h.

unsigned int planck_rng::int_rand_uni ( ) [inline]

Returns uniformly distributed random integer numbers from the interval [0;0xFFFFFFFF].

Definition at line 102 of file planck_rng.h.

double planck_rng::rand_uni ( ) [inline]

Returns uniformly distributed random numbers from the interval [0;1[.

Definition at line 113 of file planck_rng.h.

double planck_rng::rand_gauss ( ) [inline]

Returns random numbers with Gaussian distribution (mean=0, sigma=1).

Uses rand_uni() internally.

Definition at line 120 of file planck_rng.h.

double planck_rng::rand_exp ( ) [inline]

Returns exponentially distributed random numbers (mean=1, nonnegative).

Uses rand_uni() internally.

Definition at line 147 of file planck_rng.h.

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

planck_rng.h