[Eeglablist] Average of ERP (Scalp map) where each participant has different # of epochs

[Ahmed Al-Samarrai]

Hi!
I am trying to plot the ERD on the 2D scalp.
I understand I can find the average 2D topographical power scalp map for a
group of people in a STUDY - however in my current STUDY some participants
have 5 data sets while others have 6 (due to artifact removal) and so it
says it can not do it.
Is there a way around this please?
Typically I am aiming for a plot as seen in this publication (figure 1
P.2224) please:
http://onlinelibrary.wiley.com/doi/10.1002/hbm.22322/pdf
Sorry but it is somewhat urgent - if possible.

Thanks for your time
Ahmed
Wales.
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