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Probabilities.FCDFInv Function
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F distribution point percent function (PPF).

Pascal
function FCDFInv(p: double; Nu1: Integer; Nu2: Integer): double; overload;
File
Parameters
Parameters 
Description 
p 
Probability, real positive value on closed interval [0,1]. 
Nu1 
Defines distribution degrees of freedom. Nu1 must be a positive integer. 
Nu2 
Defines distribution degrees of freedom. Nu2 must be a positive integer. 
Returns

the Fisher(F) distribution point percent function (PPF) for integer parameters Nu1 and Nu2 (degrees of freedom) at the probability y. Both Nu1 and Nu2 must be positive integer numbers and the probability p must lie on the interval [0,1], otherwise the result is NAN.

Description

The inverse F cumulative distribution function is defined by the following equation: 

 

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