std::chi_squared_distribution(3)

NAME
std::chi_squared_distribution - A chi_squared_distribution random number distribution.

SYNOPSIS

  Classes
struct param_type

  Public Types
typedef _RealType result_type

  Public Member Functions
chi_squared_distribution (const param_type &__p)
chi_squared_distribution (_RealType __n=_RealType(1))
result_type max () const
result_type min () const
_RealType n () const
template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng, const param_type &__p)
template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng)
void param (const param_type &__param)
param_type param () const
void reset ()

Detailed Description

  template<typename _RealType = double> class std::chi_squared_distribution< _RealType >
A chi_squared_distribution random number distribution. The formula for the normal probability mass function is $ p(x|n) = ac{x^{(n/2) - 1}e^{-x/2}}{Gamma(n/2) 2^{n/2}} $

Definition at line 2232 of file bits/random.h.

Member Typedef Documentation

  template<typename _RealType = double> typedef _RealType std::chi_squared_distribution< _RealType >::result_type

The type of the range of the distribution.

Definition at line 2236 of file bits/random.h.

Member Function Documentation

  template<typename _RealType = double> result_type std::chi_squared_distribution< _RealType >::max () const [inline]

Returns the least upper bound value of the distribution.

Definition at line 2309 of file bits/random.h.

  template<typename _RealType = double> result_type std::chi_squared_distribution< _RealType >::min () const [inline]

Returns the greatest lower bound value of the distribution.

Definition at line 2302 of file bits/random.h.

  template<typename _RealType = double> void std::chi_squared_distribution< _RealType >::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 2295 of file bits/random.h.

  template<typename _RealType = double> param_type std::chi_squared_distribution< _RealType >::param () const [inline]

Returns the parameter set of the distribution.

Definition at line 2287 of file bits/random.h.

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

  template<typename _RealType = double> void std::chi_squared_distribution< _RealType >::reset () [inline]

Resets the distribution state.

Definition at line 2273 of file bits/random.h.

Author

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