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<p class="MsoNormal">Dear all,<o:p></o:p></p>
<p class="MsoNormal">Sorry for this simple question but I am unable to work out what I am doing wrong.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am working through a TF analysis using all the online tutorials etc. I’m interested in the time window 1 second before the trigger but have taken a 2 second window (0.5 seconds either side of the bit I am interested in). Everything seems
to be going ok and the freq.powspctrm object seems to be the correct size but when plotting my results (using any of the multiplot, singeplot or topoplot methods) I keep getting the error message:
<i>incorrect specification of cfg.trials for data without repetitions.</i><o:p></o:p></p>
<p class="MsoNormal">See here some example code:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> cfg.trials = highValSuccessTrials;
</span><span style="font-size:10.0pt;font-family:"Courier New";color:forestgreen">% this is a vector of trial numbers</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> cfg.method =
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#A020F0">'mtmconvol'</span><span style="font-size:10.0pt;font-family:"Courier New";color:black">;
</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> cfg.keeptrials =
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#A020F0">'no'</span><span style="font-size:10.0pt;font-family:"Courier New";color:black">;</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> cfg.output =
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#A020F0">'pow'</span><span style="font-size:10.0pt;font-family:"Courier New";color:black">;</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">
</span><span style="font-size:10.0pt;font-family:"Courier New";color:forestgreen">cfg.channel = 'eeg';
</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> cfg.taper =
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#A020F0">'hanning'</span><span style="font-size:10.0pt;font-family:"Courier New";color:black">;</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> cfg.foi = 2:2:30;</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> cfg.t_ftimwin = ones(length(cfg.foi),1).*2;
</span><span style="font-size:10.0pt;font-family:"Courier New";color:forestgreen">% length of time window = 2 sec</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> cfg.toi = -1.5:0.05:0.5;
</span><span style="font-size:10.0pt;font-family:"Courier New";color:forestgreen">% time window "slides" from -1.5 to 0.5 sec (0.5 s after stim presentation) in steps of 0.05 sec (50 ms)</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> freqdata = ft_freqanalysis(cfg, preProcData);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:12.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal">%%plotting<o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">cfg.baseline = [-1.5 -1.1];
</span><span style="font-size:10.0pt;font-family:"Courier New";color:forestgreen">% this is just before my 1 sec of interest</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">cfg.baselinetype =
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#A020F0">'absolute'</span><span style="font-size:10.0pt;font-family:"Courier New";color:black">;
</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">cfg.maskstyle =
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#A020F0">'saturation'</span><span style="font-size:10.0pt;font-family:"Courier New";color:black">;
</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">cfg.channel =
</span><span style="font-size:10.0pt;font-family:"Courier New";color:#A020F0">'FcZ'</span><span style="font-size:10.0pt;font-family:"Courier New";color:black">;</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">figure
</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">ft_singleplotTFR(cfg, freqdata);</span><span style="font-size:12.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Much appreciated!<o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#757B80;mso-fareast-language:EN-AU">---------------------------------------------------------------------</span></b><span style="font-size:12.0pt;color:black;mso-fareast-language:EN-AU"><br>
P. Watson<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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