Random Number Generation

Classes
class	NormalRandomFunctor< Engine >
class	RandomNumberGenerator< Engine >
class	UniformIntRandomFunctor< Engine >
class	UniformRandomFunctor< Engine >

Typedefs
typedef RandomNumberGenerator < detail::RandomState < detail::MT19937 > >	MersenneTwister
typedef RandomNumberGenerator < detail::RandomState < detail::MT19937 > >	RandomMT19937
typedef RandomNumberGenerator < detail::RandomState < detail::TT800 > >	RandomTT800
typedef RandomNumberGenerator < detail::RandomState < detail::TT800 > >	TemperedTwister

Functions
double	normal () const
RandomMT19937 &	randomMT19937 ()
RandomTT800 &	randomTT800 ()

Detailed Description

High-quality random number generators and related functors.

Typedef Documentation

typedef RandomNumberGenerator<detail::RandomState<detail::TT800> > RandomTT800

Shorthand for the TT800 random number generator class.

typedef RandomNumberGenerator<detail::RandomState<detail::TT800> > TemperedTwister

Shorthand for the TT800 random number generator class (same as RandomTT800).

typedef RandomNumberGenerator<detail::RandomState<detail::MT19937> > RandomMT19937

Shorthand for the MT19937 random number generator class.

typedef RandomNumberGenerator<detail::RandomState<detail::MT19937> > MersenneTwister

Shorthand for the MT19937 random number generator class (same as RandomMT19937).

Function Documentation

RandomTT800& vigra::randomTT800

(

)

Access the global (program-wide) instance of the TT800 random number generator.

RandomMT19937& vigra::randomMT19937

(

)

Access the global (program-wide) instance of the MT19937 random number generator.

double normal

(

)

const

Return a standard normal variate (Gaussian) random number.

Mean is zero, standard deviation is 1.0. It uses the polar form of the Box-Muller transform.