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std::poisso...bution::mean(3)  C++ Standard Libary std::poisso...bution::mean(3)

NAME
     std::poisson_distribution::mean - std::poisson_distribution::mean

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

	Returns  the  I1/4  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 I1/4 distribution parameter.

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

http://cppreference.com 	   2024.06.10	   std::poisso...bution::mean(3)

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