std::poisson_distribution<IntType>::mean
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std::poisson_distribution
Member functions
Generation
Characteristics
poisson_distribution::mean
Non-member functions
(C++11)(C++11)(until C++20)
(C++11)(C++11)
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.