ncfcdf

Description

Noncentral F cdf

Syntax

double ncfcdf( const double dF, double df1, double df2, double lambda, int * nFail = NULL )

Parameters

dF

[input] deviate from the non-central F-distribution, .

df1

[input] degrees of freedom of the numerator variance, . .

df2

[input] degrees of freedom of the denominator variance, . .

lambda

[input] non-centrality parameter

nFail

[output] on successful exit, it returns the NAG error code NE_NOERROR; if an error or warning has been detected, then it returns the specific error or warning code.

Return

Returns Non-central F-distribution cumulative distribution function

Examples

EX1

void ncfcdf_ex1()
{
        double x[]= {0.25, 0.5, 0.75};
        double df1 = 3, df2 = 2, lamda = 10;
        for(int ii = 0; ii<3; ii++)
                printf("%f     %f      %f      %f:     %f\n", x[ii], df1, df2, lamda, ncfcdf(x[ii], df1, df2, lamda));
}

Remark

See Also

nctcdf

header to Include

origin.h

Reference