std::poisson_distribution::mean

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double mean() const;
(since C++11)

Returns the μ parameter the distribution was constructed with. The parameter defines mean number of occurrences of the event. The default value is 1.0.

[edit] Parameters

(none)

[edit] Return value

Floating point value identifying the μ distribution parameter.

[edit] See also

gets or sets the distribution parameter object
(public member function)