trusty (3) std::binomial_distribution.3cxx.gz

NAME

       std::binomial_distribution< _IntType, _RealType > -

SYNOPSIS

   Public Types
       typedef _RealType input_type
       typedef _IntType result_type

   Public Member Functions
       template<class _UniformRandomNumberGenerator > binomial_distribution
           < _IntType, _RealType >
           ::result_type _M_waiting (_UniformRandomNumberGenerator &__urng, _IntType __t)"
       binomial_distribution (_IntType __t=1, const _RealType &__p=_RealType(0.5))
       template<class _UniformRandomNumberGenerator > binomial_distribution
           < _IntType, _RealType >
           ::result_type operator() (_UniformRandomNumberGenerator &__urng)"
       template<class _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator
           &__urng)
       _RealType p () const
       void reset ()
       _IntType t () const

   Friends
       template<typename _IntType1 , typename _RealType1 , typename _CharT , typename _Traits >
           std::basic_ostream< _CharT,
           _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const binomial_distribution<
           _IntType1, _RealType1 > &__x)"
       template<typename _IntType1 , typename _RealType1 , typename _CharT , typename _Traits >
           std::basic_istream< _CharT,
           _Traits > & operator>> (std::basic_istream< _CharT, _Traits > &__is, binomial_distribution<
           _IntType1, _RealType1 > &__x)"

Detailed Description

   template<typename _IntType = int, typename _RealType = double>class std::binomial_distribution< _IntType,
       _RealType >                                                        n
       A discrete binomial random number distribution.                    o
                                                                          m
       The formula for the binomial probability mass function is $ p(i) = {} p^i (1 - p)^{t - i} $ where $ t $
       and $ p $ are the parameters of the distribution.                  n
                                                                          }
       Definition at line 1951 of file tr1_impl/random.                   {

Member Function Documentation

   template<typename _IntType = int, typename _RealType = double> template<class _UniformRandomNumberGenerator >
       binomial_distribution<_IntType, _RealType>::result_type std::binomial_distribution< _IntType, _RealType
       >::operator() (_UniformRandomNumberGenerator &__urng)
       A rejection algorithm when t * p >= 8 and a simple waiting time method - the second in the referenced
       book - otherwise. NB: The former is available only if _GLIBCXX_USE_C99_MATH_TR1 is defined.

       Reference: Devroye, L. 'Non-Uniform Random Variates Generation.' Springer-Verlag, New York, 1986, Ch. X,
       Sect. 4 (+ Errata!).

       Definition at line 1161 of file random.tcc.

       References std::abs(), std::numeric_limits< _Tp >::epsilon(), std::log(), and std::numeric_limits< _Tp
       >::max().

   template<typename _IntType = int, typename _RealType = double> _RealType std::binomial_distribution<
       _IntType, _RealType >::p () const [inline]
       Gets the distribution p parameter.

       Definition at line 1979 of file tr1_impl/random.

   template<typename _IntType = int, typename _RealType = double> _IntType std::binomial_distribution< _IntType,
       _RealType >::t () const [inline]
       Gets the distribution t parameter.

       Definition at line 1972 of file tr1_impl/random.

Friends And Related Function Documentation

   template<typename _IntType = int, typename _RealType = double> template<typename _IntType1 , typename
       _RealType1 , typename _CharT , typename _Traits > std::basic_ostream<_CharT, _Traits>& operator<<
       (std::basic_ostream< _CharT, _Traits > &__os, const binomial_distribution< _IntType1, _RealType1 > &__x)
       [friend]
       Inserts a binomial_distribution random number distribution __x into the output stream __os.

       Parameters:
           __os An output stream.
           __x A binomial_distribution random number distribution.

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

   template<typename _IntType = int, typename _RealType = double> template<typename _IntType1 , typename
       _RealType1 , typename _CharT , typename _Traits > std::basic_istream<_CharT, _Traits>& operator>>
       (std::basic_istream< _CharT, _Traits > &__is, binomial_distribution< _IntType1, _RealType1 > &__x)
       [friend]
       Extracts a binomial_distribution random number distribution __x from the input stream __is.

       Parameters:
           __is An input stream.
           __x A binomial_distribution random number generator engine.

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

Author

       Generated automatically by Doxygen for libstdc++ from the source code.

libstdc++                                        Thu Mar std::binomial_distribution< _IntType, _RealType >(3cxx)