A discrete binomial random number distribution. More...
A discrete binomial random number distribution.
The formula for the binomial probability mass function is where
and
are the parameters of the distribution.
Definition at line 1951 of file tr1_impl/random.
binomial_distribution< _IntType, _RealType >::result_type std::binomial_distribution< _IntType, _RealType >::operator() | ( | _UniformRandomNumberGenerator & | __urng | ) | [inline] |
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::log(), and std::max().
_RealType std::binomial_distribution< _IntType, _RealType >::p | ( | ) | const [inline] |
Gets the distribution p
parameter.
Definition at line 1979 of file tr1_impl/random.
_IntType std::binomial_distribution< _IntType, _RealType >::t | ( | ) | const [inline] |
Gets the distribution t
parameter.
Definition at line 1972 of file tr1_impl/random.
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
.
__os | An output stream. | |
__x | A binomial_distribution random number distribution. |
__x
inserted or in an error state. 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
.
__is | An input stream. | |
__x | A binomial_distribution random number generator engine. |
__x
extracted or in an error state.