explicit negative_binomial_distribution( IntType k = 1, double p = 0.5 ); | (1) | (since C++11) |
explicit negative_binomial_distribution( const param_type& params ); | (2) | (since C++11) |
Constructs a new distribution object. The first version uses k
and p
as the distribution parameters, the second version uses params
as the distribution parameters.
Parameters
k | - | the k distribution parameter (number of trial failures) |
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
.
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