[Eeglablist] Merging two datasets with unequal numbers of events

[Elizabeth Spencer Norton]

Hello,

I'm trying to merge (concatenate) two datasets with different numbers of events. We run an oddball paradigm with randomly selected number of standards between deviants, and this is done in two runs that have different stimuli. I'm trying to concatenate the two runs using the GUI which calls pop_mergeset, but getting the error popup "EEGLAB error in function pop_mergeset() at line 275: Reference to non-existent field 'urevent'."


Looking at the pop_mergeset script, it looks like it wants to merge the files and insert a boundary event halfway through (lines 224-228), which may be the problem with using two files of unequal length. (Using EEGLab version 13.6.5.)


I'd prefer not to just lop off events from the longer dataset to make the sizes match. If anyone has ideas for other solutions, I would appreciate it!

Best,

Elizabeth Norton

Northwestern University
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