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<div name="messageBodySection">Quoting Arno from this message <a href="https://sccn.ucsd.edu/pipermail/eeglablist/2018/013641.html">
<u>https://sccn.ucsd.edu/pipermail/eeglablist/2018/013641.html</u></a><br>
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“There is also another rank function we have programmed ourselves to support the Matlab one when it fails (see getrank() at the end of pop_runica).”<br>
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<span style="font-family: "Gentium Basic"; font-size: 16px;">John T. Johnson</span><br style="font-family: "Gentium Basic"; font-size: 16px;">
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PhD Student - Cognitive Motor Control Laboratory<br>
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Lab TA NEURO 2001 Principles</div>
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School of Biological Sciences</div>
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Georgia Institute of Technology<br>
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678-575-2093<br>
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<span style="font-family: "Gentium Basic"; font-size: 16px;">john.johnson@gatech.edu</span>
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<div name="messageReplySection">On Aug 7, 2018, 4:51 PM -0400, Marius Klug <marius.s.klug@gmail.com>, wrote:<br>
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<div>Hi all,</div>
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<div>I have a similar problem, even though I use double precision. It always gives me the full rank, with average reference and a few interpolated channels. If I calculate an AMICA, I manually subtract the number of interpolated channels plus 1 from EEG.nbchan
to get the rank.</div>
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<div>Best,</div>
<div>Marius<br>
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<div class="gmail_quote">2018-07-31 19:18 GMT+02:00 Makoto Miyakoshi <span dir="ltr">
<<a href="mailto:mmiyakoshi@ucsd.edu" target="_blank">mmiyakoshi@ucsd.edu</a>></span>:<br>
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<div dir="ltr">Dear Hamed,
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<span class="">> Do you know what can be my fault or what is the reason of this issue?</span></div>
<span class=""><br class="m_-4714887998814368994gmail-Apple-interchange-newline">
</span>Try rank(double(EEG.data')) Most likely that's because your input was single precision data.</div>
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<div>Makoto<br>
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<div dir="ltr"><span class="">On Mon, Jul 23, 2018 at 1:53 PM Hamed Taheri <<a href="mailto:hamedtaheri@yahoo.com" target="_blank">hamedtaheri@yahoo.com</a>> wrote:<br>
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<div><span class="">Hello all,</span></div>
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<div><span class="">I have a problem with rank(EEG.data).</span></div>
<div><span class="">Actually, before running the ICA I'm using rank(EEG.data) to run the ICA in the proper rank with PCA. But the given results by rank(EEG.data) are very strange.</span></div>
<div><span class="">For example, I have 64 channels EEG and after preprocessing I have 60 but the rank(EEG.data) gives me 11 or for another data 20. <br>
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<div><span class="">I've tried with several data and all results were strange. I was in doubt maybe I made a bridge between channels during injecting gel but I've tried with another data which I'm sure they are perfect but I see the same problem.<br>
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<div><span class="">Do you know what can be my fault or what is the reason of this issue?</span></div>
<div><span class="">I remember if data wasn't full rank the EEGLAB gave us a message before running the ICA which you will have fewer ICs and showed up the number of ICs but now I don't have this message even if I know I interpolated for instance 5 channels.<br>
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<div><span class="">I would be so thankful if you could help me.</span></div>
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<div><span class="">Hamed<br>
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<span class="HOEnZb"><font color="#888888">--<br>
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<div dir="ltr"><span class="HOEnZb"><font color="#888888">Makoto Miyakoshi<br>
Swartz Center for Computational Neuroscience<br>
Institute for Neural Computation, University of California San Diego<br>
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