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<TITLE>[Fieldtrip] RE: timelockstatistic</TITLE>
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<P><FONT SIZE=2>Dear Rodrigo,<BR>
<BR>
I'm wondering if the error is the same for all number-combinations that you used. I agree with Ingrid that cfg.uvar should be 2. When I test this specific part of the scripts, it seems to work for me (I don't get any error).<BR>
<BR>
So next I wonder what the avg1 and avg2 variables look like. The tutorial is written for grandaverage variables which include the field 'individual' (therefore, cfg.parameter='individual', cfg.parameter is the value you want to do statistics on). This field 'individual' contains the data for all subjects.<BR>
<BR>
Since you are looking at one subject only I guess you don't have this field. So the cfg.parameter should be 'trial'. So check if avg1 and avg2 have the field 'trial' if not do timelockanalysis again with cfg.keeptrials = 'yes'.<BR>
<BR>
cfg.design should then be dependent on the number of trials and not on number of subjects. If you have 10 trials for both conditions it should look something like this:<BR>
<BR>
Ntrials = 10 ;<BR>
cfg.design(1,1:2*Ntrials) = [ones(1,Ntrials) 2*ones(1,Ntrials)];<BR>
cfg.design(2,1:2*Ntrials) = [1:Ntrials 1:trials];<BR>
<BR>
cfg.design then will look like this:<BR>
<BR>
cfg.design<BR>
<BR>
ans =<BR>
<BR>
Columns 1 through 15<BR>
<BR>
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2<BR>
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5<BR>
<BR>
Columns 16 through 20<BR>
<BR>
2 2 2 2 2<BR>
6 7 8 9 10<BR>
<BR>
The first 10 trials belong to condition 1 and the second 10 to condition 2.<BR>
<BR>
This is probably why you get the design error. It doesn't fit with the parameter you want to do statistics on.<BR>
<BR>
I hope this was a correct hypothesis and my reply will help you!<BR>
<BR>
Best Regards,<BR>
<BR>
Hanneke<BR>
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