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
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
__x A lognormal_distribution random number distribution.
Returns
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
__x A lognormal_distribution random number generator engine.
Returns
Author¶
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Sun Jan 8 2023 | libstdc++ |