The F_CVF function computes the cutoff value V in an F distribution with Dfn and Dfd degrees of freedom such that the probability that a random variable X is greater than V is equal to a user-supplied probability P .
This routine is written in the IDL language. Its source code can be found in the file
subdirectory of the IDL distribution.
Use the following command to compute the cutoff value in an F distribution with ten degrees of freedom in the numerator and six degrees of freedom in the denominator such that the probability that a random variable X is greater than the cutoff value is 0.01. The result should be 7.87413.