[Eeglablist] Importing channel locations

[Makoto Miyakoshi]

Dear Chesney,

Sorry for belated response.
Probably the file you created was wrong so it caused a trouble in reading.
If you did NOT digitize the channel locations for each subject, I recommend
you simply use the names of the channel and 'look up locs' to load the
standard channel locations for Fz, Cz, Pz, etc. If you want to create the
channel location file, load our tutorial data, export channel locations
(into whatever channel format), watch it carefully and it is structured,
then copy the actual contents into the template.

Makoto



On Thu, Mar 23, 2017 at 2:23 AM, Chesney Craig <C.Craig at mmu.ac.uk> wrote:

> Hi,
>
>
>
> Our acquisition software (TMSi Polybench) is not supported by EEGLAB, so
> we cannot import channel locations automatically. However, the cap we use
> is a standard 10-20 electrode placement. Therefore, as a solution, I can
> manually add each channel location name and 'look up locs' for
> each channel one by one, which I have then exported as a .ced file to
> import automatically later.​
>
>
>
> However, when I subsequently import this file as the channel locs file, I
> get the following warning:
>
>
>
> EEG.chanlocs = pop_editset(EEG);
>
> [ALLEEG EEG, CURRENTSET] = eeg_store(ALLEEG, EEG, CURRENTSET);
>
> pop_editset(): channel locations file 'C:\Users\Home\Documents\Ches\
> eeglab_current\eeglab13_6_5b\TMSi_32_cap.ced' found
>
> readlocs(): 'chanedit' format assumed from file extension
>
> Reading file (lines): 10 20 30 32
>
> readlocs() warning: Fewer columns in the input than expected.
>
>                     See >> help readlocs
>
> eeg_checkset warning: no field label in channel location structure,
> removing it
>
> Warning: channel labels should not be empty, creating unique labels
>
> Warning: the size of the channel location structure does not match with
>
>          number of channels. Channel information have been removed.
>
>
>
> I don't understand the error, as there are 32 channels to the structure
> and there are 32 channel labels. Could anyone offer advice on this issue
> please?
>
>
>
> Kind regards,
>
> Chesney Craig
>
>
>
>
>
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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