[Eeglablist] advice on exporting to cartool

[Hamish Innes-Brown]

Hi there, I'm writing to the list to see if anyone has any advice on  
how best to export data from EEGLAB to Cartool...

http://brainmapping.unige.ch/Cartool.htm

I have the data in a variety of forms in EEGLAB - continuous, epoched  
and averaged.  The best thing (I think) would be to export the  
continuous data in a format that Cartool can read, preferably a format  
that contains all the event onformation as well, like neuroscan .EEG  
(this is just one I know) or EDF.

I looked into it a bit, and discovered the Biosig toolbox distributed  
with EEGlab can read and write EDF, using the "ssave()" command.

> help ssave
>   SSAVE saves signal data in various data formats
>
>   Currently are the following data formats supported:
>      EDF, BDF, GDF, BKR, SND/AU, (WAV, AIF)
>      and WSCORE event file
>
>   HDR = ssave(HDR,data);
>   HDR = ssave(FILENAME,data,TYPE,Fs);
>
>   FILENAME      name of file
>   data  signal data, each column is a channel
>   TYPE 	determines dataformat
>   Fs	sampling rate	
>
>   see also: ssave, sopen, swrite, sclose, doc/README



  Horay! But am I right in thinking this command will simply accept a  
matrix with rows=samples...  And no provision for events or epochs?   
So I would have to firstly elect data by each stimulus type, and then  
export a version of [EEG.data] where all the epochs in the 3rd  
dimension were concatenated together, and then hope that there is some  
way to re-segment in cartool...

Then I searched my archives of eeglablist emails for a dim memory -  
the writecnt function.  This looks like it might do the trick, except  
that my data are already epoched, and there is no equivalent  
"writeeeg" to write a neuroscan epoched *.eeg file...

Any tips - has anyone opened ICA-filtered epochs from EEGLAB in  
Cartool before?

Thanks!



-hamish0


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20080903/1d571ab9/attachment.html>