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From: "Florian " <beissner@med.uni-frankfurt.de>
Newsgroups: comp.soft-sys.matlab
Subject: Question on filtering
Date: Fri, 2 May 2008 09:41:03 +0000 (UTC)
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Hi,
I have a electrophysiological signal (electrogastrography).
It is a one channel recording with a main frequency content
in the band between 0 and 0.2Hz, so very low frequencies.
Playing arround with the signal processing toolbox I was
simply overwhelmed by the amount of possible filters. 
What I want to do is to apply bandpass filtering and
downsample the signal from 500 Hz to about 1 Hz
(afterwards). The band I am interested in is from 0.01 to
0.2 Hz. Could anybody please tell me a good way to do this? 

Thank you very much in advance.

Florian Beissner