[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Scilab is now GPL v2 compatible - as the site claims
From: |
Sergei Steshenko |
Subject: |
Re: Scilab is now GPL v2 compatible - as the site claims |
Date: |
Sat, 20 Sep 2008 23:57:49 -0700 (PDT) |
--- On Sat, 9/20/08, Søren Hauberg <address@hidden> wrote:
> From: Søren Hauberg <address@hidden>
> Subject: Re: Scilab is now GPL v2 compatible - as the site claims
> To: address@hidden
> Cc: address@hidden
> Date: Saturday, September 20, 2008, 11:35 PM
> lør, 20 09 2008 kl. 23:28 -0700, skrev Sergei Steshenko:
> > Scilab has a really nice function for filter
> synthesis: frep2tf. I think
> > it is better than its octave-forge counterpart. Better
> in the sense of
> > accuracy.
>
> Patches are more than welcome :-)
>
> Søren
???
If anybody is interested, he/she first has to verify my claim -
my understanding of the algorithm is superficial, but, still, I think
frep2tf has a functional piece its octave-forge counterpart doesn't have,
and that is why the function is more accurate.
If my claim is correct, then octave-forge maintainers willhave to decide
whether to add a new function based on fre2tf or to change the existing ne.
...
Anyway, frep2tf has a subtle, though not serious, flaw.
IIRC, it uses sum of abs deviations rather than sum of squares of abs
deviations as its error metric. I mean, strictly saying, it's not least
squares approximation as it claims. It was one of the things I changed in
my local copy.
Regards,
Sergei.
- Scilab is now GPL v2 compatible - as the site claims, Sergei Steshenko, 2008/09/18
- Re: Scilab is now GPL v2 compatible - as the site claims, bharat pathak, 2008/09/21
- Re: Scilab is now GPL v2 compatible - as the site claims, Sergei Steshenko, 2008/09/21
- Re: Scilab is now GPL v2 compatible - as the site claims, Francesco Potorti`, 2008/09/21
- Re: Scilab is now GPL v2 compatible - as the site claims, Søren Hauberg, 2008/09/21
Re: Scilab is now GPL v2 compatible - as the site claims, David Bateman, 2008/09/21