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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt"><span style="font-family:'Segoe UI',Helvetica,Arial,sans-serif; font-size:medium">Hi Everyone, </span>
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<div><span style="font-family:'Segoe UI',Helvetica,Arial,sans-serif; font-size:medium">I am student new to FieldTrip and have been going through the tutorials. I am trying to run the ft_definetrial function on the sample data Subject01 from this tutorial page </span><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3">http://www.fieldtriptoolbox.org/tutorial/preprocessing</font></div>
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<div><span style="font-family:'Segoe UI',Helvetica,Arial,sans-serif; font-size:medium">This is the script I'm using (same as the one on the tutorial page)</span></div>
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<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3">cfg = [];</font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"> cfg.dataset = 'Subject01.ds';</font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"> cfg.trialfun = 'ft_trialfun_general'; % this is the default</font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"> cfg.trialdef.eventtype = 'backpanel trigger';</font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"> cfg.trialdef.eventvalue = 3; % the value of the stimulus trigger for fully incongruent (FIC).</font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"> cfg.trialdef.prestim = 1; % in seconds</font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"> cfg.trialdef.poststim = 2; % in seconds</font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"> </font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"> cfg = ft_definetrial(cfg);</font></div>
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<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"><br>
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<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3">After running that I get these errors: </font></div>
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<div>evaluating trialfunction 'ft_trialfun_general'</div>
<div>Error using ft_read_header (line 2102)</div>
<div>unsupported header format (unknown)</div>
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<div>Error in ft_trialfun_general (line 78)</div>
<div>hdr = ft_read_header(cfg.headerfile, 'headerformat', cfg.headerformat);</div>
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<div>Error in ft_definetrial (line 174)</div>
<div> [trl, event] = feval(cfg.trialfun, cfg);</div>
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<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3">Could someone help guide me as to what I'm doing wrong or missing? Any assistance on solving this is appreciated!<br>
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Thanks! </font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3"><br>
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<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3">Best,</font></div>
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<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3">Farah Ahmed</font></div>
<div><font face="Segoe UI, Helvetica, Arial, sans-serif" size="3">University of Michigan </font></div>
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