std_geometric_distribution.3cxx

Langue: en

Version: 356110 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

std::geometric_distribution -

A discrete geometric random number distribution.

SYNOPSIS


Classes


struct param_type

Public Types


typedef _IntType result_type

Public Member Functions


geometric_distribution (double __p=0.5)

geometric_distribution (const param_type &__p)

result_type max () const

result_type min () const

template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng)

template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng, const param_type &__p)

double p () const

void param (const param_type &__param)

param_type param () const

void reset ()

Detailed Description

template<typename _IntType = int> class std::geometric_distribution< _IntType >

A discrete geometric random number distribution.

The formula for the geometric probability density function is $p(i|p) = (1 - p)p^{i-1}$ where $p$ is the parameter of the distribution.

Definition at line 3619 of file random.h.

Member Typedef Documentation

template<typename _IntType = int> typedef _IntType std::geometric_distribution< _IntType >::result_typeThe type of the range of the distribution.

Definition at line 3626 of file random.h.

Member Function Documentation

template<typename _IntType = int> result_type std::geometric_distribution< _IntType >::max () const [inline]

Returns the least upper bound value of the distribution.

Definition at line 3712 of file random.h.

template<typename _IntType = int> result_type std::geometric_distribution< _IntType >::min () const [inline]

Returns the greatest lower bound value of the distribution.

Definition at line 3705 of file random.h.

template<typename _IntType = int> template<typename _UniformRandomNumberGenerator > result_type std::geometric_distribution< _IntType >::operator() (_UniformRandomNumberGenerator & __urng) [inline]

Generating functions.

Definition at line 3720 of file random.h.

References std::geometric_distribution< _IntType >::operator()(), and std::geometric_distribution< _IntType >::param().

Referenced by std::geometric_distribution< _IntType >::operator()().

template<typename _IntType = int> double std::geometric_distribution< _IntType >::p () const [inline]

Returns the distribution parameter p.

Definition at line 3683 of file random.h.

template<typename _IntType = int> void std::geometric_distribution< _IntType >::param (const param_type & __param) [inline]

Sets the parameter set of the distribution. Parameters:

__param The new parameter set of the distribution.

Definition at line 3698 of file random.h.

template<typename _IntType = int> param_type std::geometric_distribution< _IntType >::param () const [inline]

Returns the parameter set of the distribution.

Definition at line 3690 of file random.h.

Referenced by std::geometric_distribution< _IntType >::operator()(), std::operator==(), and std::operator>>().

template<typename _IntType = int> void std::geometric_distribution< _IntType >::reset () [inline]

Resets the distribution state. Does nothing for the geometric distribution.

Definition at line 3677 of file random.h.

Author

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