std::poisson_distribution<IntType>:: mean

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std::poisson_distribution
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 .

Parameters

(none)

Return value

Floating point value identifying the μ distribution parameter.

See also

(C++11)
gets or sets the distribution parameter object
(public member function)
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