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From "Ted Dunning" <ted.dunn...@gmail.com>
Subject Re: [MATH] Strange issue with FDistribution
Date Fri, 26 Sep 2008 07:02:23 GMT
More importantly, I think that all of the root finding routines will expand
their original region as necessary.  Thus, you can just check for the
exception case and put in some nominal first value like 1e6.  This may cost
you a little speed in some cases, but not all that much.

On Thu, Sep 25, 2008 at 3:27 PM, Brent Worden <brent.worden@gmail.com>wrote:

> You can always subclass FDistributionImpl and override the method.
> The return value from this method serves as a starting value for a
> root finding rountine; the default mechnanism used to compute inverse
> CDFs.  So, the exact number returned is not crucial to obtain accurate
> results.  The inverse CDF rountines will just perform better based on
> this starting value.
>
> HTH,
>
> Brent.
>
> On Thu, Sep 25, 2008 at 3:27 AM, Jörg Henning <joerg.henning@spectos.com>
> wrote:
> > thanks for your reply Phil. As requested, I opened a Bug in JIRA.
> > (Please give me a hint if I messed anything up)
> >
> > Anyone knows a possible quick-fix or workaround on the issue?
> >
>
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-- 
ted
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