RANDNF Generate Noncentral F-Distribution Random Variable
Section: Random Number Generation
Usage
Generates a vector of non-central F-distributed random variables with the specified parameters. The general syntax for its use isy = randnf(n,m,c)
where n
is the number of degrees of freedom in the numerator,
and m
is the number of degrees of freedom in the denominator.
The vector c
determines the non-centrality shift of the numerator.
Function Internals
A non-central F-distributed random variable is the ratio of a non-central chi-square random variable and a central chi-square random variable, i.e.,
Example
Here we use therandf
to generate some non-central F-distributed
random variables:
--> randnf(5*ones(1,9),7,1.34) ans = Columns 1 to 8 1.9422 0.5987 0.1890 0.7468 2.3759 8.2553 1.8047 0.2222 Columns 9 to 9 2.2680