[Eeglablist] How to extract the actual channel values from an interpolated scalp map matrix?

[Tarik S Bel-Bahar]

Hello Azadeh, one alternative is to interpolate the missing channels file
by file, and then grab the interpolated values straight from EEG.data of
that particular file. If you find the proper way to grab them out of study,
please let us know. I don't think the pipeline for extracting all computed
STUDY values is super-clear yet. Perhaps we could have something like
Makoto's pipeline, but instead for  "Extraction from Study". Best wishes.

On Thu, Jan 7, 2016 at 3:36 PM, Azadeh HajiHosseini <hajihosseini at gmail.com>
wrote:

> Hi EEGLAB users,
>
> I wonder if anyone knows how I can get the individual channel values from
> an interpolated image matrix of a scalp map? I have a 67 x 67 scalp map
> matrix and the channel location coordinates in Theta, R, and X, Y, Z format
> but I don't know how I can find the value of specific channels from the
> interpolated image...
>
> I need this because when I do clustering, the STUDY.cluster(i).topo which
> represents the scalp map of 'cluster i' is a 67 x 67 matrix while I am
> interested in creating the time-course of each cluster (as you would do for
> each Independent Component using the .icaweights matrix), so I need the
> value assigned to each channel.
>
> I would appreciate your ideas!
>
> Best,
>
> Azadeh HajiHosseini
> Postdoctoral Research Fellow
> Pacific Parkinson's Research Centre
> University of British Columbia, Canada
> http://www.parkinsons.ubc.ca/
>
>
>
>
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