[Eeglablist] a question on topoplot

[alotof eve]

Hi, Steve,

Thanks so much. I tried all the way I could think, from GUI or command. The steps I used as follows:

1, upload existed dataset. I uploaded SL.set which corresponding to a condition withdrawed from whole data. This dataset contains 110 trials with the length (-200 1000) ms

for GUI:
2, Plot/ERP map series/ In 2-D


for command:
pop_topoplot(EEG,1,[-200:100:500],'ERP test');

I also tried topoplot (EEG,1,[-200:100:500],'ERP test');

The error message I got:
Error using TriScatteredInterp
The input points must be a double array.

Error in griddata>linear (line
 205)
    F =
    TriScatteredInterp(inargs{1}(:),inargs{2}(:),inargs{3}(:));
    
Error in griddata (line 125)
      vq = linear(inputargs,numarg);

Error in topoplot (line 960)
      [Xi,Yi,Zi] = griddata(inty,intx,intValues',yi,xi'); %
      interpolate data (Octave)

Error in pop_topoplot (line 322)
            tmpobj = topoplot( SIGTMPAVG(:,index),
            EEG.chanlocs, options{:});

I used the lastest version of this script. I noticed that it keeps unchanged since 2012. 
I don't think it's a bug of scrip. I think it's I that don't know the way use it correctly.

Thanks,
Eve



________________________________
 From: Stephen Politzer-Ahles <politzerahless at gmail.com>
To: alotof eve <alotof_tiger at yahoo.com> 
Cc: "eeglablist at sccn.ucsd.edu" <eeglablist at sccn.ucsd.edu> 
Sent: Monday, April 8, 2013 12:32 PM
Subject: Re: [Eeglablist] a question on topoplot
 

Hi Eve,

Topoplotting epoched data with pop_topoplot seems to work fine for me. Can you clarify how you were trying to plot the data (what menus or command line functions you used), and what kind of error message you got when it failed?

Best,
Steve




On Sat, Apr 6, 2013 at 12:03 PM, alotof eve <alotof_tiger at yahoo.com> wrote:

Hi, experts,
>
>
>Sorry for this kind of low-grade question. Can I ask what kind of data can be an input for topoplot? I tried epoched data processed via eeglab/pop_epoch but failed. 
>
>Thanks,
>Eve
> 
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-- 
Stephen Politzer-Ahles
University of Kansas
Linguistics Department
http://people.ku.edu/~sjpa/ 
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