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The Non-Central Chi-Square Distribution

Syntax

dnchisq(x, df)
pnchisq(x, df)
qnchisq(x, df)
rnchisq(x, df)

Description

These functions provide information about the non-central chi-square distribution with df degrees of freedom. dnchisq gives the density, pnchisq gives the distribution function qnchisq gives the quantile function and rnchisq generates random deviates.

The non-central chi-square distribution with n degrees-of-freedom has density

Equations will come with HTML3

for x >= 0.