[Eeglablist] How can I normalize spectra maps and the scale bar between data sets and subjects

[Tarik S Bel-Bahar]

Hello Ryan, some quick thoughts below that might help, all the best.




*********************************************
Yes coding things by hand is useful, and you can learn a bit by looking
into the functions. Whatever function you're using has to draw the scale
and set the range, so it is possible to "hack in" modify/build functions if
you know what you're doing.

If you load up your files into a study in eeglab, and compute channel
information, then in the GUI there is the option to set the range of the
scale bar. The scale range option is under Study>Plot Channel
Measures>Params
Then you can at least plot the grand average and the single-subject
topomaps in various ways (or other channel measures you've computed).

About contour lines, if you use the topoplot function, you can modify the
number of contour lines with the 'numcontour' flag I believe.
http://sccn.ucsd.edu/eeglab/allfunctions/topoplot.html







On Fri, Apr 15, 2016 at 11:28 AM, Ryan Sikorski <sikorski at psu.edu> wrote:

> Hello,
>
> I'm fairly new to EEGlab in general. I'm trying to compare spectra map
> data across various subjects. The issue I'm having is the range of the
> scale bar varies between subjects and data sets. Making it impossible at a
> glance to compare data. I've tried to dig into all the figure options and I
> can change the scale bar, but the corresponding spectra maps don't change
> with it.
>
> Is there a solution so I could say set the scale from -6 to 6, and the
> spectra maps would change accordingly?
>
> Also, how do I add more contour lines to the maps? I see the default is 6
> but again I've not found a way to increase it. Thank you.
>
> *Ryan Sikorski*
>
>
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to
> eeglablist-unsubscribe at sccn.ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to
> eeglablist-request at sccn.ucsd.edu
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20160420/c2140400/attachment.html>