On Fri, Aug 14, 2009 at 10:13 AM, <josef.pktd@gmail.com> wrote:
On Fri, Jul 3, 2009 at 12:06 PM, Elias Pampalk<elias.pampalk@gmail.com> wrote:
I did a quick comparison between Matlab/stats (R14SP3), R (2.8.1), and Python/SciPy (0.7). Maybe this is somehow useful for others too.
...
Elias
Thanks for doing this, this is very helpful. I attached the comparison to ticket:901
Except for one case, the numbers look pretty good. However, documentation is still weak, and some of the code duplication could be removed.
Josef
(I didn't look at it closely before, because I was on vacation at that time.)
I wish we would get more contributions like this, there are still some unverified functions in stats (and the rest of scipy). Skipper and I (mostly Skipper) spend a lot of time this summer comparing the reworked models code with R, Stata or SAS, and it can be very time consuming to find out whether the differences are bugs, are because of the use of different options or whether the functions are based on different definitions. The good result is that we have almost all the code verified against at least one other statistical package. Josef