request for Poisson CDF inverse

Heikki Orsila shd@jolt.modeemi.cs.tut.fi
Sun Jul 8 23:39:00 GMT 2007


On Sun, Jul 08, 2007 at 10:54:48PM +0100, Brian Gough wrote:
> At Thu, 5 Jul 2007 17:16:38 -0700,
> Jason Detwiler wrote:
> > I am looking to calculate the inverse of the CDF for the Poisson
> > distribution. I noticed that many of the CDFs coded in gsl have
> > inverse functions also coded, but this is not the case for the Poisson
> > distribution (unfortunately for me). I would like to "request" these
> > functions. I would try to contribute them myself, but I'm not
> > confident I could code them to the standards of gsl. What are the
> > chances of my wishes being fulfilled by another developer?
> 
> Hello,
> 
> Currently there aren't any inverses for the discrete distributions.

Woud you consider a patch? I might convert the python code I posted 
into C, and make that the first discrete distribution having an inverse.

-- 
Heikki Orsila			Barbie's law:
heikki.orsila@iki.fi		"Math is hard, let's go shopping!"
http://www.iki.fi/shd



More information about the Gsl-discuss mailing list