[Eeglablist] how to draw map figures using averaged data

[Jianrong Jia]

Hi Steve,
I runed topoplot command like this:
yyy=[1:1:64];
topoplot(yyy,'PE_loc.txt','electrodes','labels') ;
and recieved following error message:
readlocs(): '' format assumed from file extension
readlocs() warning: More columns in the input than expected.
                    See >> help readlocs
Undefined function or variable "eloc".
Error in readlocs (line 458)
   if isfield(eloc, 'sph_theta_besa')
Error in topoplot (line 640)
        [tmpeloc labels Th Rd indices] = readlocs( loc_file);
The PE_loc.txt was exported by Edit-Channel locations-Save(Other types) of EEGLAB. I checked the PE_loc.txt and  be sure that it's channel corresponding to my data.

Is anything wrong?
 
Best.
Jianrong

------------------ Original ------------------
From:  "Stephen Politzer-Ahles"<politzerahless at gmail.com>;
Date:  Tue, Apr 2, 2013 03:51 AM
To:  "Jianrong Jia"<jianrongjia at hotmail.com>; 
Cc:  "eeglablist"<eeglablist at sccn.ucsd.edu>; 
Subject:  Re: [Eeglablist] how to draw map figures using averaged data



Hello Jianrong,


Once you've imported the data into EEGLAB, you can use the topoplot() function to draw topographic maps of a particular time point, or an average over multiple timepoints.. See the topoplot() help information for more details and examples.
 
Best,
Steve



On Sat, Mar 30, 2013 at 11:08 AM, Jianrong Jia <jianrongjia at hotmail.com> wrote:
 Dear all
I have a grand averaged data has been exported by Analyzer 2(Brain Products Corp.). It is only one second. How can i draw maps using this data.
 

Jianrong

 

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-- 
Stephen Politzer-Ahles
 University of Kansas
Linguistics Department
http://people.ku.edu/~sjpa/
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