[Eeglablist] How to compute Grand ERP on data with different number of channels

[mahsa shalchy]

Dear Experts,

I would like to compute the Grand ERP of my data using ERPLAB, however, I'm
encountering an error since after bad channel rejection, I ended up with
different number of channels for different sessions. Also, the channels
that I rejected, are not the same channels across sessions, i.e. one
session might lose T7 whereas the other may lose PO7.

How could I get the ERPLAB to compute Grand average ERP (without doing any
channel interpolation )?

Finally, I was wondering if it is meaningful to run ICA on this dataset,
since I am lacking different channels for different sessions which yields
slightly different components.

Many thanks,
Mahsa
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