inverse values for the F distribution

[Martin Jansche]

On 2 Sep 2003, Rajarshi Guha wrote:

> In the abscence of this function is there any way to get a
> critical value for an F test statistic?

If you absolutely need a critical value, you could use a root finding
algorithm.  But are you sure you need one?  If you're doing a simple F
test, it might be enough to compute the upper tail probability using
gsl_cdf_fdist_Q() and then compare that probability with your desired
significance level.

- martin