std::negative_binomial_distribution<IntType>::negative_binomial_distribution

 

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std::negative_binomial_distribution

Member functions

negative_binomial_distribution::negative_binomial_distribution (C++11)

negative_binomial_distribution::reset (C++11)

Generation

negative_binomial_distribution::operator() (C++11)

Characteristics

negative_binomial_distribution::pnegative_binomial_distribution::k (C++11)(C++11)

negative_binomial_distribution::param (C++11)

negative_binomial_distribution::min (C++11)

negative_binomial_distribution::max (C++11)

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operator==operator!= (C++11)(C++11)(until C++20)

operator<<operator>> (C++11)(C++11)

 

negative_binomial_distribution() : negative_binomial_distribution(1) {}	(1)	(since C++11)
explicit negative_binomial_distribution( IntType k, double p = 0.5 );	(2)	(since C++11)
explicit negative_binomial_distribution( const param_type& params );	(3)	(since C++11)

Constructs a new distribution object.

2) Uses k and p as the distribution parameters.

3) Uses params as the distribution parameters.

Parameters

k	-	the k distribution parameter (number of trial successes)
p	-	the p distribution parameter (probability of a trial generating true)
params	-	the distribution parameter set

Notes

Requires that 0 < p ≤ 1 and 0 < k.

If p == 1, subsequent calls to the operator() overload that does not accept a param_type object will cause undefined behavior.

The default-constructed std::negative_binomial_distribution is equivalent to the default-constructed std::geometric_distribution.

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR	Applied to	Behavior as published	Correct behavior
P0935R0	C++11	default constructor was explicit	made implicit