On Tue, Sep 15, 2009 at 3:19 AM, Sherlock, Ric <[email protected]> wrote: > The definition for the Chi squared Cumulative Distribution Function given in > the essay > http://www.jsoftware.com/jwiki/Essays/Chi%20Squared%20CDF and in the > distribution.ijs script of the stats/base addon, seems to be unstable for > large values.
Could you use the functions from gsl? It does have a function for the cumulative distributive function of the chi square distribution. See my earlier emails on this list for similar examples if you need the details (sorry). Ambrus ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
