std::chi_squared_distribution::chi_squared_distribution

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explicit chi_squared_distribution( RealType n = 1.0 );
(1) (since C++11)
explicit chi_squared_distribution( const param_type& params );
(2) (since C++11)

Constructs new distribution object. The first version uses n as the distribution parameter, the second version uses params as the distribution parameter.

[edit] Parameters

n - the n distribution parameter (degrees of freedom)
params - the distribution parameter set