std::poisson_distribution::poisson_distribution

 

C++

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Technical Specifications

 

Numerics library

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random_device (C++11)

Distributions

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uniform_int_distribution (C++11)

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bernoulli_distribution (C++11)

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geometric_distribution (C++11)

Poisson distributions

poisson_distribution (C++11)

exponential_distribution (C++11)

gamma_distribution (C++11)

weibull_distribution (C++11)

extreme_value_distribution (C++11)

Normal distributions

normal_distribution (C++11)

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discrete_distribution (C++11)

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seed_seq (C++11)

C library

rand

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std::poisson_distribution

Member functions

poisson_distribution::poisson_distribution

poisson_distribution::reset

Generation

poisson_distribution::operator()

Characteristics

poisson_distribution::mean

poisson_distribution::param

poisson_distribution::min

poisson_distribution::max

Non-member functions

operator==operator!=

operator<<operator>>

 

explicit poisson_distribution( double mean = 1.0 );	(1)	(since C++11)
explicit poisson_distribution( const param_type& params );	(2)	(since C++11)

Constructs a new distribution object. The first version uses mean as the distribution parameter, the second version uses params as the distribution parameter.

Parameters

mean	-	the μ distribution parameter (the mean of the distribution)
params	-	the distribution parameter set

Notes

Requires that 0 < mean.