[Eeglablist] Plot 1-D Matrix using Headmap

[arno delorme]

I advise you to do this

Load a dataset in EEGLAB with the 62 channels you are interested in.  
The code belows allow you to plot results in log space where it is  
easier to look at p values.

figure; topoplot(-log10(p), EEG.chanlocs, 'cbar', 'on')

Then use something like this for the scale

     pos = get(gca, 'position');
     tmpc = caxis;
     maxplot = tmpc(2);
     h = cbar; cla;
     map = colormap;
     n = size(map,1);
     cols = [ceil(n/2):n]';
     image([0 1],linspace(0,maxplot,length(cols)),[cols cols]);
     tick = linspace(0, maxplot, maxplot+1);
     set(gca, 'ytickmode', 'manual', 'YAxisLocation', 'right',  
'xtick', [], ...
         'ytick', tick, 'yticklabel', round(10.^-tick*1000)/1000);
     xlabel('');

Best,

Arno

On 22 sept. 08, at 00:28, SANKET JAIN wrote:

> Hi experts,
>
> Using the stancond() function, I got a 62X1 vector of p values for  
> statistical comparison between the 2 tasks.
>
> I need to plot these values as a topographic map with value at each  
> electrode being the same as p value. I got the topographic head map  
> using the topoplot() function.
>
> I need a color bar along with this topographic map so that I can  
> interprete the p value from the map. Let me know of any possible to  
> do it? Also let me know of
> any better way to do the same procedure.
>
> Thank you in advance,
>
> Sanket Jain
>
>
>
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