[FieldTrip] TRENTOOL bad channel combinations

[Patricia Wollstadt]

Hello Tyler,

TRENTOOL does not support the exclusion of channels like FieldTrip does
(e.g.  {'all', '-MLx', '-EOG'}), you have to explicitly specify channels
OR combinations of channels for analysis in the cfg structure passed to
TEprepare:

%  cfg.sgncmb      = list of channelpairs cell array (Nx(source, target))
%  or
%  cfg.channel     = list of channels cell array - testing will be done
all-by-all

If you provide a list of channel combinations in cfg.sgncmb, TRENTOOL
will analyze these combinations only; if you provide a list of channels
in cfg.channel, TEprepare will build all possible channel combinations
from the list and TRENTOOL will analyze these combinations. (Also,
channel names have to match the channel labels in data.label.)

So, a way to exclude bad channel combinations would be to provide a list
of all channels that should be included in the analysis in cfg.channel
and let TEprepare build the channel combinations from that.

I hope this answers your question. Please let me know if you encounter
any more problems.

Best,
Patricia



On 04/11/2014 04:38 AM, Tyler Grummett wrote:
>
> Hello fieldtrip,
>
>
> Has anyone worked out how to handle bad channel combinations in
> TRENTOOL using TEprepare?
>
>
> In my experience it just crashes. I am hoping for a way to calculate
> the bad channel combinations before running TEprepare.
>
>
> If anyone can help, that will be greatly appreciated!!
>
>
> Tyler
>
>
> *************************
>
> /Tyler Grummett ( BBSc, BSc(Hons I))/
> /PhD Candidate/
> /Brain Signals Laboratory/
> /Flinders University/
> /Rm 5A301/
> /Ext 66124/
>
>
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip

------------------------------------------------------------

Patricia Wollstadt, PhD Student

MEG Unit, Brain Imaging Center

Goethe University, Frankfurt, Germany

Heinrich Hoffmann Strasse 10, Haus 93 B

D - 60528 Frankfurt am Main

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