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std::lognormal_distribution< _RealType >(3cxx) std::lognormal_distribution< _RealType >(3cxx)

NAME

std::lognormal_distribution< _RealType > - A lognormal_distribution random number distribution.

SYNOPSIS

#include <random>

Classes


struct param_type

Public Types


typedef _RealType result_type

Public Member Functions


lognormal_distribution (_RealType __m, _RealType __s=_RealType(1))
lognormal_distribution (const param_type &__p)
template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng)
template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng, const param_type &__p)
template<typename _UniformRandomNumberGenerator > void __generate (result_type *__f, result_type *__t, _UniformRandomNumberGenerator &__urng, const param_type &__p)
_RealType m () const
result_type max () const
Returns the least upper bound value of the distribution. result_type min () const
Returns the greatest lower bound value of the distribution. template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng)
Generating functions. template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng, const param_type &__p)
param_type param () const
Returns the parameter set of the distribution. void param (const param_type &__param)
Sets the parameter set of the distribution. void reset ()
_RealType s () const

Friends


template<typename _RealType1 , typename _CharT , typename _Traits > std::basic_ostream< _CharT, _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const std::lognormal_distribution< _RealType1 > &__x)
Inserts a lognormal_distribution random number distribution __x into the output stream __os. bool operator== (const lognormal_distribution &__d1, const lognormal_distribution &__d2)
Return true if two lognormal distributions have the same parameters and the sequences that would be generated are equal. template<typename _RealType1 , typename _CharT , typename _Traits > std::basic_istream< _CharT, _Traits > & operator>> (std::basic_istream< _CharT, _Traits > &__is, std::lognormal_distribution< _RealType1 > &__x)
Extracts a lognormal_distribution random number distribution __x from the input stream __is.

Detailed Description

template<typename _RealType = double>

class std::lognormal_distribution< _RealType >"A lognormal_distribution random number distribution.

The formula for the normal probability mass function is
p(x|m,s) = ac{1}{sxrt{2i}}

\xp{-ac{( ]

Definition at line 2196 of file random.

Member Typedef Documentation

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

The type of the range of the distribution.

Definition at line 2203 of file random.

Constructor & Destructor Documentation

template<typename _RealType = double> std::lognormal_distribution< _RealType >::lognormal_distribution () [inline]

Definition at line 2238 of file random.

template<typename _RealType = double> std::lognormal_distribution< _RealType >::lognormal_distribution (_RealType __m, _RealType __s = _RealType(1)) [inline], [explicit]

Definition at line 2241 of file random.

template<typename _RealType = double> std::lognormal_distribution< _RealType >::lognormal_distribution (const param_type & __p) [inline], [explicit]

Definition at line 2246 of file random.

Member Function Documentation

template<typename _RealType = double> template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void std::lognormal_distribution< _RealType >::__generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator & __urng) [inline]

Definition at line 2314 of file random.

template<typename _RealType = double> template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void std::lognormal_distribution< _RealType >::__generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator & __urng, const param_type & __p) [inline]

Definition at line 2321 of file random.

template<typename _RealType = double> template<typename _UniformRandomNumberGenerator > void std::lognormal_distribution< _RealType >::__generate (result_type * __f, result_type * __t, _UniformRandomNumberGenerator & __urng, const param_type & __p) [inline]

Definition at line 2328 of file random.

template<typename _RealType = double> _RealType std::lognormal_distribution< _RealType >::m () const [inline]

Definition at line 2261 of file random.

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

Returns the least upper bound value of the distribution.

Definition at line 2294 of file random.

References std::numeric_limits< _Tp >::max().

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

Returns the greatest lower bound value of the distribution.

Definition at line 2287 of file random.

template<typename _RealType = double> template<typename _UniformRandomNumberGenerator > result_type std::lognormal_distribution< _RealType >::operator() (_UniformRandomNumberGenerator & __urng) [inline]

Generating functions.

Definition at line 2302 of file random.

References std::lognormal_distribution< _RealType >::operator()().

Referenced by std::lognormal_distribution< _RealType >::operator()().

template<typename _RealType = double> template<typename _UniformRandomNumberGenerator > result_type std::lognormal_distribution< _RealType >::operator() (_UniformRandomNumberGenerator & __urng, const param_type & __p) [inline]

Definition at line 2307 of file random.

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

Returns the parameter set of the distribution.

Definition at line 2272 of file random.

template<typename _RealType = double> void std::lognormal_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 2280 of file random.

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

Resets the distribution state.

Definition at line 2254 of file random.

References std::normal_distribution< _RealType >::reset().

template<typename _RealType = double> _RealType std::lognormal_distribution< _RealType >::s () const [inline]

Definition at line 2265 of file random.

Friends And Related Function Documentation

template<typename _RealType = double> template<typename _RealType1 , typename _CharT , typename _Traits > std::basic_ostream< _CharT, _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > & __os, const std::lognormal_distribution< _RealType1 > & __x) [friend]

Inserts a lognormal_distribution random number distribution __x into the output stream __os.

Parameters

__os An output stream.
__x A lognormal_distribution random number distribution.

Returns

The output stream with the state of __x inserted or in an error state.

template<typename _RealType = double> bool operator== (const lognormal_distribution< _RealType > & __d1, const lognormal_distribution< _RealType > & __d2) [friend]

Return true if two lognormal distributions have the same parameters and the sequences that would be generated are equal.

Definition at line 2339 of file random.

template<typename _RealType = double> template<typename _RealType1 , typename _CharT , typename _Traits > std::basic_istream< _CharT, _Traits > & operator>> (std::basic_istream< _CharT, _Traits > & __is, std::lognormal_distribution< _RealType1 > & __x) [friend]

Extracts a lognormal_distribution random number distribution __x from the input stream __is.

Parameters

__is An input stream.
__x A lognormal_distribution random number generator engine.

Returns

The input stream with __x extracted or in an error state.

Author

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Sun Jan 8 2023 libstdc++