I've been having the same problems, and can't seemt o work out what might be going on unfortunately.<br><br>I have data recorded with a 64-channel quick-cap, and have digitised the positions using the Polhemus Fastrak. This makes *.3dd files. I then convert these to *.dat files using the 3dspace prpgram, and end up with a text file that has x y z columns for each electrode, plus a few other rows containing marker points etc.
<br><br>What I usually do is delete the extra rows so that the number of rows in the *.day file matches the number of electrodes. Then EEGlab has no problems plotting teh electrodes from within the pop_chanedit window. However this doesn't seem to be working for me any more. I'm not sure if this is due to the new version, or some difference in how I am doing things.
<br><br>This is the error I get - is it the same situation you are having Milene?<br><br>IMPORTANT: After importing/modifying data channels, you must close<br>the channel editing window for the changes to take effect in EEGLAB.
<br>TIP: Call this function directy from the prompt, ">> pop_chanedit([]);"<br> to convert between channel location file formats<br>Reading file (lines): 10 20 30 40 50 60 70 69<br>??? Error using ==> lower
<br>Cell elements must be character arrays.<br><br>Error in ==> pop_chanedit at 1026<br> inds = strmatch( 'fid', lower(alltypes(indnoempty)) );<br><br>??? Error while evaluating uimenu Callback.
<br><br>-hamish-<br><br><br><br><br><br><div><span class="gmail_quote">On 5/24/06, <b class="gmail_sendername">Bonte M (PSYCHOLOGY)</b> <<a href="mailto:M.Bonte@psychology.unimaas.nl">M.Bonte@psychology.unimaas.nl</a>> wrote:
</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div>
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<p><font color="navy" face="Helvetica" size="3"><span style="font-size: 12pt; font-family: Helvetica; color: navy;">Dear all,</span></font></p>
<p><font color="navy" face="Helvetica" size="3"><span style="font-size: 12pt; font-family: Helvetica; color: navy;"> </span></font></p>
<p><font color="navy" face="Helvetica" size="3"><span style="font-size: 12pt; font-family: Helvetica; color: navy;">We have been trying
to load the correct channel locations for the 64-Channel equidistant <a href="http://www.easycap.de/easycap/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"><font color="navy"><span style="color: navy; text-decoration: none;">
Easy-cap</span></font></a> in EEGlab, but this does not
seem to work.</span></font></p>
<p><font color="navy" face="Helvetica" size="3"><span style="font-size: 12pt; font-family: Helvetica; color: navy;">Does anybody have the
correct electrode location coordinates for this cap? (the link on the EEGlab
site is unavailable)</span></font></p>
<p><font color="navy" face="Helvetica" size="3"><span style="font-size: 12pt; font-family: Helvetica; color: navy;"> </span></font></p>
<p><font color="navy" face="Helvetica" size="3"><span style="font-size: 12pt; font-family: Helvetica; color: navy;">Thanks in advance
& best wishes,</span></font></p>
<p><font color="navy" face="Helvetica" size="3"><span style="font-size: 12pt; font-family: Helvetica; color: navy;"> </span></font></p>
<p><font color="navy" face="Helvetica" size="3"><span style="font-size: 12pt; font-family: Helvetica; color: navy;">Heidi Koppenhagen and
Milene Bonte</span></font></p>
<p><font color="navy" face="Helvetica" size="3"><span style="font-size: 12pt; font-family: Helvetica; color: navy;"> </span></font></p>
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<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;"> </span></font></p>
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