[Eeglablist] appending datasets with different length epochs

Arnaud Delorme arno at ucsd.edu
Mon May 2 15:40:19 PDT 2016


Yes, EEGLAB cannot do that. If you want to run ICA, simply convert them to continuous data and then you will have no problem merging them.
From the command line

EEG.pnts = EEG.pnts*EEG.trials;
EEG.trials = 1;
EEG = eeg_checkset(EEG);
eeglab redraw

Arno

> On Apr 29, 2016, at 11:57 AM, matt schalles <matt.schalles at gmail.com> wrote:
> 
> Greetings, I'm processing datasets with multiple experiments in a single recording session. The time between experiments is noisy and laden with artifacts. I'd like to extract the relevant epochs for each experiment to reduce noisy segments of data and then concatenate them for finding source estimates before splitting them apart to analyze separately. I'm running into difficulty with pop_mergeset wanting the sets to have homogenous epoch lengths. Anyone else deal with this problem before?
> 
> cheers,
> 
> Matt Schalles, Ph.D.
> Cognitive Neuroscientist, VA Health System
> Visiting Assistant Professor, Mills College
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