poisson_distribution::poisson_distribution

Constructs the distribution.

explicit poisson_distribution(RealType mean = 1.0);

explicit binomial_distribution(const param_type& parm);

Parameters

• mean
  The mean distribution parameter.

• parm
  The parameter structure used to construct the distribution.

Remarks

**Precondition:**0.0 < mean

The first constructor constructs an object whose stored p value holds the value p.

The second constructor constructs an object whose stored parameters are initialized from parm. You can obtain and set the current parameters of an existing distribution by calling the param() member function.

Requirements

Header: <random>

Namespace: std

See Also

Reference

<random>

poisson_distribution Class