Hello everyone,<br><br>I am a new EEGLAB user and am trying to make topoplots of multiple effects and time windows to compare within the same figure; I would like to set the same min/max scale values for all the topoplots. I have tried using input like ('maplimits',[-3 3]) within the call to topoplot(), but while that creates topoplots that seem to have the right scale (e.g. -3uv to 3uv), the plots themselves are just one plain color (that is to say, the whole plot is 0) even though there should be visible effects. Could anyone show me an example of how to define the maplimits in the topoplot() function? Any help would be greatly appreciated.<br>
<br>Here is the code I am trying to run:<br><br>figure;<br><br>[signal, variance, chan_names, pnts, rate, xmin, xmax] = loadavg('trig4-trig5.avg');<br>locations = readlocs('32chan_new.loc' );<br>range = mean(signal(:,350:500 ),2);<br>
subplot(2,3,1),topoplot(range,locations,'plotrad',.51,'conv','off','electrodes','off','maplimits',[-2 2]); title('150-300 ms')<br>range = mean(signal(:,500:700 ),2);<br>
subplot(2,3,2),topoplot(range,locations,'plotrad',.51,'conv','off','electrodes','off','maplimits',[-2 2]); title('300-500 ms')<br>range = mean(signal(:,800:1100 ),2);<br>
subplot(2,3,3),topoplot(range,locations,'plotrad',.51,'conv','off','electrodes','off','maplimits',[-2 2]); title('600-900 ms')<br><br>[signal, variance, chan_names, pnts, rate, xmin, xmax] = loadavg('trig6-trig7.avg');<br>
locations = readlocs('32chan_new.loc' );<br>range = mean(signal(:,350:500 ),2);<br>subplot(2,3,4),topoplot(range,locations,'plotrad',.51,'conv','off','electrodes','off','maplimits',[-2 2]); title('150-300 ms')<br>
range = mean(signal(:,500:700 ),2);<br>subplot(2,3,5),topoplot(range,locations,'plotrad',.51,'conv','off','electrodes','off','maplimits',[-2 2]); title('300-500 ms')<br>
range = mean(signal(:,800:1100 ),2);<br>subplot(2,3,6),topoplot(range,locations,'plotrad',.51,'conv','off','electrodes','off','maplimits',[-2 2]); title('600-900 ms')<br>
<br clear="all">Thank you,<br>Steve Politzer-Ahles<br><br><br>-- <br>Stephen Politzer-Ahles<br>University of Kansas<br>Linguistics Department<br><a href="http://www.linguistics.ku.edu/">http://www.linguistics.ku.edu/</a><br>