[R] waveform filtering

[jfontain@free.fr]

Quoting tom wright <tom at maladmin.com>:

> On Mon, 2005-19-09 at 10:36 -0400, tom wright wrote:
> > I'm not an engineer so I hope I'm using the correct terminology here. I
> > have a recorded waveform that I want to apply low and high pass filters
> > too, are tehre already R functions existing to do this or am I going to
> > have to program my own?
> > thanks for any pointers
> > tom
> >
> Thanks for the answers to this, after a little reading I realised that
> what sounded so simple wasnt quite. However chapters 15-18 of
> http://www.dspguide.com has been very useful.

Maybe you need a more specialized tool, such as FFTW?
I found it by searching on "fourier" at www.freshmeat.net. Just an idea...


--
Jean-Luc