# std::fisher_f_distribution<RealType>::fisher_f_distribution

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< cpp‎ | numeric‎ | random‎ | fisher f distribution

fisher_f_distribution() : fisher_f_distribution(1.0) {} | (1) | (since C++11)
explicit fisher_f_distribution( RealType m, RealType n = 1.0 ); | (2) | (since C++11)
explicit fisher_f_distribution( const param_type& params ); | (3) | (since C++11)

Constructs a new distribution object. (2) uses `m` and `n` as the distribution parameters. (3) uses `params` as the distribution parameters.

### Parameters

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

### Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR | Applied to | Behavior as published | Correct behavior
--- | --- | --- | ---
P0935R0 | C++11 | default constructor was explicit | made implicit

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