[Eeglablist] Inquiry for Code to Create Visually Appealing Graphics that Show ROI Locations

[Cedric Cannard]

Dear Olivia,

My guess is that either your channel locations stored in your Channellocation variable are incorrect, or the size you specify as 21 for 'emarker' is too big? 

To plot specific electrodes in different color, how did you use the 'emarker2' input? Did you try the example from the help? e.g., 'emarker2', {37,'.','r',21,1}. 


Cedric



------- Original Message -------
On Saturday, April 22nd, 2023 at 1:37 PM, Olivia Yang via eeglablist <eeglablist at sccn.ucsd.edu> wrote:


> Hi experts,
> 
> Could you please help me understand why the head model always goes out of bounds (see the picture) when I try to plot the positions of a few electrodes using the following code:
> 
> topoplot([ ],Channellocation,'plotchans',[37 38 39],'style','blank','electrodes','on','numcontour' ,0, 'emarker' ,{'.','k',21,1}, 'whitebk','on','hcolor','k' );
> 
> Also, I was wondering how I could plot these three electrodes in two colors. I know that 'emarker2' option can be used when there are values, but the function prompts me that this option cannot be used when there are no values.
> [image.png]
> Thank you in advance for your help.
> 
> Olivia
> 
> ------- Original Message -------
> On Monday, April 17th, 2023 at PM 7:24, Olivia Yang via eeglablist eeglablist at sccn.ucsd.edu wrote:
> 
> > Hi all,
> > I have selected a set of electrodes based on the literature and analyzed their ERPs statistically. For my paper, I need to illustrate the locations of these electrodes in a visually appealing way. I was wondering if you could share any code or suggestions on how to create such a graphic.
> > Thank you!
> > Olivia
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