[SciPy-User] Any planned work on scipy.stats.distributions?
Wed Oct 6 08:30:44 CDT 2010
On Tue, Oct 5, 2010 at 7:52 AM, Neal Becker <firstname.lastname@example.org> wrote:
> I'm needing doubly noncentric F distribution.
> I found this:
> It might not be the best, but it's all I found.
Looks interesting, I never heard of the doubly noncentric something
Both your code and the paper are a bit stingy on explanations.
>From a few examples that I tried, the precision looks pretty good. I
found some papers that use saddle point approximation to get both pdf
and cdf of doubly non-central f and t distributions, which might be
faster for some use cases (e.g. evaluating the cdf or pdf at many
But for the statistics applications that I saw mentioned (needing only
one or a few points of the cdf), your version looks good and could be
dressed up into a scipy.stats.distributions case.
> Coded it up as attached:
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