<div dir="ltr">Dear Brittany,<div><br></div><div>The speed of Infomax implemented in runica() does get affected by data quality.</div><div>I recommend you check data data set using trimOutlier() plugin.</div><div><a href="https://sccn.ucsd.edu/wiki/TrimOutlier">https://sccn.ucsd.edu/wiki/TrimOutlier</a><br></div><div>Go back to the continuous data and run trimOutlier. It will show you envelope of all channels across time. Well-tempered data should show 'stationary' (i.e., the envelope shapes more or less rectangular with constant width) shape. If you have super huge outlier or continuous zeros, you will easily find it. Such outliers can make the infomax really slow.</div><div><br></div><div>Makoto</div><br><div class="gmail_quote"><div dir="ltr">On Fri, Jul 6, 2018 at 10:31 AM Brittany Alperin <<a href="mailto:balperin07@gmail.com">balperin07@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hello<div><br></div><div>I'm currently working with a fairly large dataset and the ICA takes several hours to run, which I consider normal. I have one file, which is seemingly no different from the others, but the ICA has been running for ~40 hours and it's not even half way done.</div><div><br></div><div>I've had this happen with different datasets before, but it's fairly rare so I never thought much of it until now.</div><div><br></div><div>Has anyone had this happen? Any thoughts? I'm using EEGLAB 12.0.2.6b, Matlab 2012b, and a Windows 7 Enterprise OS.</div><div><br></div><div>Thanks,</div><div>Brittany</div><div><br></div><div>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><a name="m_-7345612886871105316__MailAutoSig"><b><span>Brittany Alperin<span></span></span></b></a></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>PhD Candidate<span></span></span></span></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>ATTEND LAB<span></span></span></span></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>Department of Behavioral Neuroscience<span></span></span></span></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>Oregon Health & Science University<span></span></span></span></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>Portland, OR<span></span></span></span></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span><span>503-418-8402<span></span></span></span></p>
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