[Eeglablist] Number of data channels

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Fri Nov 27 13:29:27 PST 2015

Dear Pam,

Yes I've seen this before. This happens because your number of
channels  (if you have fiducial, plus 3) does not match the first dimension
of EEG.data. Make sure you delete extra channel(s) WITHIN THE CHANNEL EDIT
WINDOW before closing it.


On Mon, Nov 2, 2015 at 12:22 PM, Pamela Leigh Stevenson <
pamela.stevenson at unb.ca> wrote:

> Hello:
> After I uploaded my channel location file (.sfp) and clicked 'OK' to exit
> the 'Edit channel info' window, I got a message stating the following:
> The number of data channels (64) not including fiducials does not
> correspond to the initial number of channels (68), so for consistency
> purposes new channel information will be ignored if this function was
> called from EEGLAB. If you added a reference channel manually, check the
> "Data channel" checkbox is off.
> Has anyone encountered this before? Am I doing something incorrectly or is
> this a normal default of EEGLAB? I'm very new to EEGLAB/MATLAB; any help is
> very much appreciated!
> Thank you!
> Pam
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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