Another chi-squared routine

[Matthias Andree]

Greg Louis <glouis at dynamicro.on.ca> writes:

> Today I learned that the FSF has a scientific library (i.e. a
> collection of numerical routines for scientific computing); version
> gsl-1.3 was recently released.  It has routines for the distribution
> functions, including chi-squared; but the chi-squared routine returns
> probability density rather than cumulative values.  That's ok, though,
> because a fast integration routine is provided as well.

What now? cumulation or integration? They are sorta different.

> Since the gsl compiles easily as a shared library, we could switch and
> not have to carry our own truncated dcdflib in the distribution in
> order to keep the executable size down.  This may not be deemed
> desirable, though, since doing so would add another package dependency
> to bogofilter, and not everyone needs numerical analysis stuff in
> /usr/lib, handy as it might be for some of us ;)

It might be desirable for licensing issues though. If there's something
clear about FSF, it's their licensing.

-- 
Matthias Andree