[Eeglablist] Using two different caps together

Downey, Ryan J RDowney at bme.ufl.edu
Mon Feb 18 12:48:06 PST 2019

You can try something like:

chLabel = 'FP1';
chInd = find(strcmp(chLabel,{EEG.chanlocs.labels}));

Then use "chInd" wherever you would otherwise type 'chans',1.


Ryan J. Downey
Postdoctoral Associate
Human Neuromechanics Laboratory
University of Florida

-----Original Message-----
From: eeglablist <eeglablist-bounces at sccn.ucsd.edu> On Behalf Of Emmanuelle Renauld
Sent: Monday, February 18, 2019 12:20 PM
To: eeglablist at sccn.ucsd.edu
Subject: [Eeglablist] Using two different caps together

Hi everyone,

I would like to know the easiest way to deal with multiple EEG datasets with different chanlocs when plotting my final ERP. For instance, using pop_comperp, if I want to plot only one channel, I can't use  the option 'chans', 1 because 1 doesn't refer to the same channel in every dataset. It would be nice if I could say 'chans', 'FP1' but I can't.

I could manually inverse the order of all my channels in all my datasets so that they would be the same. I don't think it exists, does it? Something like pop_rearrange_chanorders(EEG, new_order). The two caps contain nearly all the same channels, except for Iz that I would have to forget in one of the caps.

Or is there another way to use pop_comperp? Can you help?



P.S I know that comparing two datasets recorded with two different caps is not the best way but our cap was broken and we had to continue with another one... :( 


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