[Eeglablist] Filter causality pop_eegfiltnew

[Andreas Widmann]

Dear Vito,

> in the last eeglab version there is not the minphase parameter in the pop_eegfiltnew function.
Which version is your last version? In 13.1.1 from the web page and in rev 10261 from SVN the option is present. It was initially introduced in EEGLAB 13 (but not backported to EEGLAB 12). Could you please check whether possibly something went wrong with your setup/path and report back your version number?

> It was useful to force the filter to be causal. If I have understand well now the filter is causal by dafault because it uses the filter funcion. Is this correct?
NO! Causal non-linear filter is NOT the default. Default is and will remain zero-phase linear filtering. Default filter functions did not change since EEGLAB 12.

Best,
Andreas

> Sorry if this is a vey well known issue but I didn't find any answer on the web until now.
> I need filter causality for Granger analisys. If anyone has also other suggestion about causal filtering with eeglab, any suggestion is very welcome!
> 
> Thank in advange!
> 
> Vito
> 
> 
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> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
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