<div>Hello,</div><div><br></div><div>I am new to Fieldtrip, and have run into the following problems running through the tutorial</div><div><br></div><div><font face="'courier new', monospace">cfg = []; % empty configuration</font></div>
<div><font face="'courier new', monospace">cfg.dataset = 'Subject01.ds'; % name of CTF dataset </font></div><div><font face="'courier new', monospace">cfg.trialdef.eventtype = 'backpanel trigger';</font></div>
<div><font face="'courier new', monospace">cfg.trialdef.prestim = 1;</font></div><div><font face="'courier new', monospace">cfg.trialdef.poststim = 2;</font></div><div><font face="'courier new', monospace">cfg.trialdef.eventvalue = 3; % event value of FIC</font></div>
<div><font face="'courier new', monospace">cfg = ft_definetrial(cfg); </font></div><div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">Warning: no trialfun was specified, using trialfun_general </font></div>
<div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">> In ft_definetrial at 123</font></div><div><font face="'courier new', monospace">evaluating trialfunction 'trialfun_general'</font></div>
<div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">Warning: adding</font></div><div><font face="'courier new', monospace">/Users/jessamynorton-ford/Documents/MATLAB/fieldtrip-20120222/external/ctf</font></div>
<div><font face="'courier new', monospace">toolbox to your Matlab path</font><font face="'courier new', monospace" color="#ff0000"> </font></div><div><font face="'courier new', monospace"><br></font></div>
<div><font face="'courier new', monospace">readCTFds: Data set error : size of meg4 file(s)</font></div><div><font face="'courier new', monospace"><span class="Apple-tab-span" style="white-space:pre"> </span> 0 bytes (from dir command)</font></div>
<div><font face="'courier new', monospace"><span class="Apple-tab-span" style="white-space:pre"> </span> 179071200 bytes (from res4 file)</font></div><div><font face="'courier new', monospace"><br></font></div>
<div><font face="'courier new', monospace">reading the events from 'Subject01.ds/Subject01.res4'</font></div><div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">readCTFds: Data set error : size of meg4 file(s)</font></div>
<div><font face="'courier new', monospace"><span class="Apple-tab-span" style="white-space:pre"> </span> 0 bytes (from dir command)</font></div><div><font face="'courier new', monospace"><span class="Apple-tab-span" style="white-space:pre"> </span> 179071200 bytes (from res4 file)</font></div>
<div><font face="'courier new', monospace" color="#ff0000"><br></font></div><div><font face="'courier new', monospace" color="#ff0000">??? Attempt to reference field of non-structure array.</font></div><div>
<font face="'courier new', monospace" color="#ff0000"><br></font></div><div><font face="'courier new', monospace" color="#ff0000">Error in ==> trialfun_general at 118</font></div><div><font face="'courier new', monospace" color="#ff0000"> sel = ismember({event.type}, cfg.trialdef.eventtype);</font></div>
<div><font face="'courier new', monospace" color="#ff0000"><br></font></div><div><font face="'courier new', monospace" color="#ff0000">Error in ==> ft_definetrial at 166</font></div><div><font face="'courier new', monospace" color="#ff0000"> [trl, event] = feval(cfg.trialfun, cfg);</font></div>
<div><br></div><div>I found a somewhat similar issue on the boards from May 2011 (<a href="http://mailman.science.ru.nl/pipermail/fieldtrip/2011-May/003827.html">http://mailman.science.ru.nl/pipermail/fieldtrip/2011-May/003827.html</a>), and have since tried several instantiations of FieldTrip (though the version I was running when I first got the error was actually very new). So far I have tried:</div>
<div><br></div><div>fieldtrip-20111004</div><div>fieldtrip-20111101</div><div>fieldtrip-20120220</div><div>fieldtrip-20120222</div><div><br></div><div>here is my <font face="'courier new', monospace">ver</font> info in case it is helpful:</div>
<div><font face="'courier new', monospace"><br></font></div><div><div><font face="'courier new', monospace">MATLAB Version 7.11.0.584 (R2010b)</font></div><div><font face="'courier new', monospace"><br>
</font></div><div><font face="'courier new', monospace">Operating System: Mac OS X Version: 10.6.2 Build: 10C540 </font></div><div><font face="'courier new', monospace">Java VM Version: Java 1.6.0_15-b03-219 with Apple Inc. Java HotSpot(TM) 64-Bit Server VM mixed mode</font></div>
<div>-------------------------------------------------------------------------------------</div></div><div><br></div><div>Any suggestions of likely incompatibilities/mistakes on my part would be most helpful.</div><div><br>
</div><div>Thank you,</div><div><br></div>-- <br>Jessamy Norton-Ford<br>Doctoral Student, Department of Cognitive Sciences<br><br>