channel combinations for coherene

[Ingrid Nieuwenhuis]

Hi Sameer,

You can just specify channel combinations by hand as a two-column cell array
only for the channels you want, see the help of the function
channelcombination.m

Hope this helps,
Ingrid

-----Original Message-----
From: FieldTrip discussion list [mailto:FIELDTRIP at NIC.SURFNET.NL] On Behalf
Of Sameer Walawalkar
Sent: Sunday, June 10, 2007 7:58 PM
To: FIELDTRIP at NIC.SURFNET.NL
Subject: Re: [FIELDTRIP] channel combinations for coherene

Dear Jan,

{'MEG' 'MEG'} is too many channel combinations. I later run into memory
problems (I am trying to get Phase Lock Value and freqanalysis_mtmfft
needs a matrix of dimensions [number of trials X number of channel
combinations X number  of frequency points]). So I am trying to do only
gradiometers with gradiometers and mags with mags (though I think even
that needs too much memory while computing phase lock values).

thanks,
sameer

On Sat, 9 Jun 2007, Jan Mathijs Schoffelen wrote:

> Dear Sameer,
>
> I am not sure whether I understood your question correctly, but couldn't
you just specify:
>
> cfg.channelcmb = {'MEG' 'MEG'} ?
>
> JM
>
> ----- Original Message -----
> From: Sameer Walawalkar <sameer at ANDREW.CMU.EDU>
> Date: Friday, June 8, 2007 10:31 pm
> Subject: [FIELDTRIP] channel combinations for coherene
>
>> Hello,
>>
>> how can I specify cfg.channelcmb for freqanalysis_mtmfft such that
>> it only
>> does planar-planar combinations or mag-mag combinations?
>>
>> thanks,
>> sameer
>>
>> ----------------------------------
>> The aim of this list is to facilitate the discussion between users
>> of the FieldTrip  toolbox, to share experiences and to discuss new
>> ideas for MEG and EEG analysis. See also
>> http://listserv.surfnet.nl/archives/fieldtrip.html and
>> http://www.ru.nl/fcdonders/fieldtrip.
>>
>
> ----------------------------------
> The aim of this list is to facilitate the discussion between users of the
FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG
and EEG analysis. See also
http://listserv.surfnet.nl/archives/fieldtrip.html and
http://www.ru.nl/fcdonders/fieldtrip.
>
>

----------------------------------
The aim of this list is to facilitate the discussion between users of the
FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG
and EEG analysis. See also
http://listserv.surfnet.nl/archives/fieldtrip.html and
http://www.ru.nl/fcdonders/fieldtrip.

----------------------------------
The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also http://listserv.surfnet.nl/archives/fieldtrip.html and http://www.ru.nl/fcdonders/fieldtrip.