[Eeglablist] topographic maps

[Arnaud Delorme]

Dear Ahmed,

I do not see what can be the problem. This function is a cornerstone of EEGLAB and is relatively stable.
Try testing it with a data file in eeglab/function/ressources. For example:

figure; [handle,Zi,grid,Xi,Yi] = topoplot(rand(1,81),'Standard-10-20-Cap81.ced')

If it does not work for you, there might be some function overload on your system that create conflicts.
Best,

Arno

On 5 Apr 2013, at 12:38, ingenieur eniso wrote:

> Dear all,
>  
> I am working on eeg signal processing. I have 19 channel eeg recorded data in edf format. I am applying FFT. I use Topoplot function to draw map figures using averaged FFT data.  I have written following program in MATLAB
> [outData PS datavector]=fft_powers(cha);
> [handle,Zi,grid,Xi,Yi] = topoplot(datavector,'Standard-10-20-Cap19.locs')
> An error is occurred:
> 
> ??? Error using ==> mldivide
> Matrix dimensions must agree.
>  
> Error in ==> topoplot at 890
> squeezefac = rmax/plotrad;
>  
> Error in ==> powerfft at 67
> [handle,Zi,grid,Xi,Yi] = topoplot(datavector,'Standard-10-20-Cap19.locs')
>  
> 
> Therefore, it is requested in your kind honor to please guide me in this regard as I am working on EEGlab these days and need your urgent help.
> 
> I hope you will send me positive and helpful response.
>  
>  
>  
> Thanks a lot in advance!
> Best,
> ahmed
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