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Difference between revisions of "cpp/numeric/random/fisher f distribution"

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< cpp‎ | numeric‎ | random
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===Non-member functions===
 
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Revision as of 22:19, 31 May 2013

 
C++
 
Numerics library
Common mathematical functions
Mathematical special functions (C++17)
Mathematical constants (C++20)
Basic linear algebra algorithms (C++26)
Floating-point environment (C++11)
Complex numbers
Numeric array (valarray)
Pseudo-random number generation
Factor operations
(C++17)
(C++17)
Interpolations
(C++20)
(C++20)
Saturation arithmetic
(C++26)
(C++26)
(C++26)
(C++26)
(C++26)

Generic numeric operations
Bit operations
(C++20)    
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++23)
(C++20)
 
Pseudo-random number generation
 
std::fisher_f_distribution
 
Defined in header <random>
template< class RealType = double >
class fisher_f_distribution;
 (since C++11)

The fisher_f_distribution class is a Template:concept that produces random numbers according to the f-distribution:

p(x;m,n) =
Γ((m+n)/2)
Γ(m/2) Γ(n/2)
(m/n)m/2 x(m/2)-1 (1+
mx
n
)-(m+n)/2

m and n are the degrees of freedom.

Contents

Member types

Member type Definition
result_type RealType
param_type the type of the parameter set, unspecified

Member functions

Template:cpp/numeric/random/fisher f distribution/dsc param mTemplate:cpp/numeric/random/fisher f distribution/dsc param n
(C++11)
 constructs new distribution
(public member function) [edit]
(C++11)
 resets the internal state of the distribution
(public member function) [edit]
Generation
(C++11)
 generates the next random number in the distribution
(public member function) [edit]
Characteristics
(C++11)
 gets or sets the distribution parameter object
(public member function) [edit]
(C++11)
 returns the minimum potentially generated value
(public member function) [edit]
(C++11)
 returns the maximum potentially generated value
(public member function) [edit]

Non-member functions

(C++11)(C++11)(removed in C++20)
 compares two distribution objects
(function) [edit]
(C++11)
 performs stream input and output on pseudo-random number distribution
(function template) [edit]

Example

This section is incomplete
Reason: no example

External links

Weisstein, Eric W. "F-Distribution." From MathWorld--A Wolfram Web Resource.

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