[Eeglablist] Filter causality pop_eegfiltnew

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue Jan 14 10:11:03 PST 2014


Dear Andreas and Vito,

Sorry Andreas I screwed it when I typed your name.

Vito, I would like to learn from you the reason why you want to use the
minimum phase filter for Granger causality analysis. By the way, you know
SIFT is available for it? In case you don't know it yet, check out
http://sccn.ucsd.edu/wiki/SIFT.

Makoto


2014/1/14 Vito de Feo <vito.defeo at zmnh.uni-hamburg.de>

> Dear Andreas,
>
> I download the last version (13.1.1) and now the option is present and it
> is clearly written that the default is the zero-phase linear filtering.
>
> In my previous version (the last of the EEGLAB 12) this option was not
> present but now, with the version 13, it is present again!
>
> Best,
>
> Vito
>
>
> Quoting Andreas Widmann <widmann at uni-leipzig.de>:
>
>  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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>>> Joachim Prölß
>>> Rainer Schoppik
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>>> --
>>> Makoto Miyakoshi
>>> Swartz Center for Computational Neuroscience
>>> Institute for Neural Computation, University of California San Diego
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>>
>
>
>
>
>
> --
> Pflichtangaben gemäß Gesetz über elektronische Handelsregister und
> Genossenschaftsregister sowie das Unternehmensregister (EHUG):
>
> Universitätsklinikum Hamburg-Eppendorf
> Körperschaft des öffentlichen Rechts
> Gerichtsstand: Hamburg
>
> Vorstandsmitglieder:
> Prof. Dr. Christian Gerloff (Vertreter des Vorsitzenden)
> Prof. Dr. Dr. Uwe Koch-Gromus
> Joachim Prölß
> Rainer Schoppik
>



-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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