Hello.
On Sat, 22 Oct 2016 12:51:03 +0200, Eric Barnhill wrote:
Dear Bernd,
Thank you for this interesting contribution. I use these sorts of
filters
frequently so I will be interested to give it a look. I just build my
Butterworths in k space so I will be interested to see how yours work
differently.
The math package is in flux as others can tell you,
This is a mild description... ;-)
To better appreciate the situation, I suggest to browse through the
"dev" ML archive (starting around last May).
The bottom line is that we critically need contributors to help
maintain, and continue developing, selected packages from the
Commons Math codebase.
however I think such
functionality fits the commons mission quite well and I am certainly
happy
to help support the code to give it a home here some how.
It will be a good fit if the code comes with developer(s) willing
to provide support too.
Best,
Eric
On 22 Oct 2016 01:35, "Bernd Porr" <m...@berndporr.me.uk> wrote:
Dear all,
I've created an IIR filter library:
https://github.com/berndporr/iirj
It's a re-coded version of my / Vinnie's DSP library originally
written
in C++. I've spent quite some time to make it work with the apache
Complex type and I've also used the polynomial solver for the
Butterworth filters.
It implements Butterworth, Elliptic, Bessel and Chebyshev Type I.
The
library is very modular and adding new filter types is easy as
adding
different filter topologies.
Is there interest in fully integrating this into math commons?
In "Commons Math" per se, no (cf. above) but as its own component,
yes.
I'm aware that I don't have any maven script just now and the
documentation is probably not complete for apache but before I
embark on
it I'd rather ask if there is interest.
If Eric is willing to help you, it's a good start; but you
should also be willing to stay around here long enough to
work with us towards an official release of that code.
And if, in addition, you can offer advice, and help with
other tasks, that will be really great.
Welcome and best regards,
Gilles
Best,
/Bernd Porr
--
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