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std::poisson_distribution<IntType>::mean

From cppreference.com
 
 
 
Pseudo-random number generation
Uniform random bit generators
Engines and engine adaptors
Non-deterministic generator
Distributions
Uniform distributions
Bernoulli distributions
Poisson distributions
Normal distributions
Sampling distributions
Seed Sequences
(C++11)
Random number algorithms
C library
 
std::poisson_distribution
Member functions
Generation
Characteristics
poisson_distribution::mean
(C++11)
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.

[edit] See also

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