[Eeglablist] PCA preclustering

[Shiri Simon]

Dear EEGLAB Team,

I'm interested in performing clustering to ICs based on ERSPs and scalp
maps.
I run the pop_precomp() while checking these options.
After that, when I call for the pop_preclust, I get poping window saying I
"can use only dipole or scalp map clustering. This is because some datasets
do not have ICA pairs. look for NaN values in STUDY.cluster.set...."
I don't understand that message. What does it mean ICA pairs? and What the
cluster.sets field mean?
As far as I can tell no datasets are missing.

Thank you very much in advance for your help.
Best regards
Shiri Simon
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