[Eeglablist] Error in running ICA

[Makoto Miyakoshi]

Dear Edwige,

Sorry for the trouble.
I want to know

   1. The number of channels (EEG.nbchan)
   2. The number of rows in EEG.icasphere *right after* ICA

They should match. If they don't, it must be EEGLAB bug--in that case, we
may need to ask you to send us the dataset. Let us know what you get.

Makoto

On Fri, Jul 6, 2018 at 10:32 AM E. Sijyeniyo <e.sijyeniyo at student.rug.nl>
wrote:

> Dear all,
>
> While running ICA for one of my participants, I received the following
> error message:
>
> *"eeg_checkset error: number of elements in ‘icachansind’ (55) does not
> match the number of columns in the sphere array (54). Should EEGlab remove
> ICA information (press cancel to fix the problem from the command line)”. *
>
> I have done the preprocessing procedure for this participant the same way
> in which I have done others. However, for my other participants, I did not
> get this message, only for this one participant.
>
> What I typed in the *Commandline* after selecting for runica is ->  ‘extended’,
> 1, ‘pca’, [number of channels -1] (-1 is because I used average reference
> which changes the rank of the data).
>
> Does anyone know what this error mean? I tried running ICA for the same
> participant again, but I keep getting the same error…could this be a bug?
>
> Thank you so much in advance!
>
> Best,
> Edwige
>
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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