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<p>Hello fieldtrip,<br>
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<p>I was just wondering when it is appropriate to use the configuration cfg.keeptrials = 'yes' in ft_timelockanalysis, and when it is appropriate to have it as 'no'.<br>
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<p>I have continuous data of 30 seconds. However its separated into a 5, 6 and 19 second segments. So they arent event-related events.<br>
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<p>At present I am not asking timelockanalysis to keep the trials, or ft_sourceanalysis (LCMV beamformer) for that matter. Is this bad? Im worried about unstable spatial filters (if I calculate covariance matrices and spatial filters for each trial) and loss
of phase (if I average the covariance matrices over trials and produce one spatial filter).<br>
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<p>I noticed that in the tutorial connectivityextended that they never specify these things and therefore use the default, which is cfg.keeptrials = 'no' and they calculate . Is that my answer?<br>
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<p>Tyler<br>
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<div style="font-size:13px">*************************
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<div><font face="Arial"><i>Tyler Grummett ( BBSc, BSc(Hons I))</i></font></div>
<div><font face="Arial"><i>PhD Candidate</i></font></div>
<div><font face="Arial"><i>Brain Signals Laboratory</i></font></div>
<div><font face="Arial"><i>Flinders University</i></font></div>
<div><font face="Arial"><i>Rm 5A301</i></font></div>
<div><font face="Arial"><i>Ext 66125</i></font></div>
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