[Eeglablist] how to ?

[Shivaprakash]

    dear sir /madam,
  i am a student working inthis field of EEG analysis for source localization. i read this on the site
  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  Though the DIPFIT plug-in has not been expressly designed to fit dipoles to raw ERP or EEG scalp maps, EEGLAB provides a command-line function that can do so.
  % point corresponding to 100 ms
latency = 0.100; 
pt100 = round((latency-EEG.xmin)*EEG.srate);

% find the equivalent dipole position for the scalp map at the computed latency
erp = mean(EEG.data(:,:,:), 3);
[ dipole model ] = dipfit_erpeeg(erp(:,pt100), EEG.chanlocs);

% show dipole information
dipole

% plot the dipole in 3-D
dipplot(dipole, 'image', 'mri', 'sphere', max(model.vol.r), 'normlen', 'on');

% plot the dipole plus the scalp map
dipolefortopoplot = [ dipole.posxyz(1,1:2) dipole.momxyz(1,1:3) ]/max(model.vol.r);
figure; topoplot(erp(:,pt100), EEG.chanlocs, ...
'dipole', dipolefortopoplot, 'dipnorm', 'on', 'electrodes', 'off');
title([ 'ERP 100ms, fit with a single dipole (RV ' num2str(dipole.rv*100,2) '%)']);
  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  how do i do the same kind of dipole fitting using say raw EEG, say"eeglab_data.set". what changes i should be making in the above code and why?
   
  i am also facing dificulty in building a GUI using the functions like the two display M-files in the above code(dipplot and topoplot). the GUI layout is attached for your kind attention.
   
  with great expectations,
  from G. Shivaprakash, 



		
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