<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Marco,<div><br></div><div>I have changed the <i>pop_runica</i> function so the rank calculation would be done on double precision data in all cases.</div><div>Thanks for mentioning it,</div><div><br></div><div>Arno</div><div><br><div><div>On Jun 29, 2012, at 11:52 AM, Scott Makeig wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">there was a major problem with the Matlab rank() function in some specific early versions of Matlab 7... <div><br></div><div>in general, since ICA is an interative computation (the output of one step being the input to the next step), it should <i>only</i> be run at double precision.<div>
<br></div><div>scott makeig<br><br><div class="gmail_quote">On Thu, Jun 28, 2012 at 5:27 PM, Makoto Miyakoshi <span dir="ltr"><<a href="mailto:mmiyakoshi@ucsd.edu" target="_blank">mmiyakoshi@ucsd.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear Marco and Arno,<br>
<br>
Thank you. This is interesting. I think this should be reported to Arno.<br>
<br>
Makoto<br>
<br>
2012/6/28 Marco Montalto <<a href="mailto:montaltomarco@onvol.net">montaltomarco@onvol.net</a>>:<br>
<div class="im HOEnZb">> Dear Makoto,<br>
><br>
> I would like to share my experiences regarding the issue reported lately in a post by Jan Remi. There seems to be some bug somewhere. I have a data file: on a Windows 7 PC it asks to adjust the rank from 16 to 15 (I have 16 channels) but on a MacBook Pro running OS X Lion it finds no problem with rank. The data file is exactly the same for both attempts. If I choose double precision on the PC, the problem with rank disappears.<br>
><br>
> Regards,<br>
> Marco<br>
<br>
<br>
<br>
</div><span class="HOEnZb"><font color="#888888">--<br>
Makoto Miyakoshi<br>
JSPS Postdoctral Fellow for Research Abroad<br>
Swartz Center for Computational Neuroscience<br>
Institute for Neural Computation, University of California San Diego<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br>Scott Makeig, Research Scientist and Director, Swartz Center for Computational Neuroscience, Institute for Neural Computation; Prof. of Neurosciences (Adj.), University of California San Diego, La Jolla CA 92093-0559, <a href="http://sccn.ucsd.edu/%7Escott" target="_blank">http://sccn.ucsd.edu/~scott</a><br>
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