You are here: Symbol Reference > Dew Namespace > Dew.Math Namespace > Dew.Math.Units Namespace > Classes > Probabilities Class > Probabilities Methods > ChiSquareCDF Method > Probabilities.ChiSquareCDF Method (double, int)
Dew Math for .NET
ContentsIndexHome
PreviousUpNext
Probabilities.ChiSquareCDF Method (double, int)
Probabilities Class  Probabilities Members  Dew.Math.Units Namespace  ChiSquareCDF Method  See Also
Collapse All

Chi-squared cumulative distribution Function (CDF).

Syntax
C#
Visual Basic
public static double ChiSquareCDF(double x, int Nu);
Parameters
Parameters 
Description 
double x 
Function domain, real positive value. 
int Nu 
Defines distribution degrees of freedom. Nu must be a positive integer value. 
Returns

the chi-squared cumulative distribution Function (CDF). The parameter Nu (degrees of freedom) must be a positive integer, otherwise the result is NAN.

Remarks

The chi-squared cumulative distribution function is defined by the following equation: 

 

where n (Nu) is the degrees of freedom and G is gamma function. The result of ChiSquareCDF is the probability that a single observation from the chi-squared distribution with Nu degrees of freedom will fall in the interval [0,x].

See Also
Group
Links
Copyright (c) 1999-2024 by Dew Research. All rights reserved.
Contents | Index | Home
What do you think about this topic? Send feedback!