<div dir="ltr"><div><div><div>Hi Gian,<br><br></div>I got similar errors. The first thing I checked was that MPICH is installed (mpich2-1.4.1p1-win-x86-64 worked for me). Second, there should be no spaces in the path and filename of your dataset and the out directory for AMICA.<br><br>When processing all participants data, I usually keep the path for amicaout to a temporary folder on the desktop and then move it to the intended/required folder using MATLAB's movefile function.<br><br></div>I hope this helps.<br><br></div><div>Regards,<br><br>M. Samran Navid.<br></div><div><div><br><div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, May 8, 2018 at 9:00 PM, <span dir="ltr"><<a href="mailto:eeglablist-request@sccn.ucsd.edu" target="_blank">eeglablist-request@sccn.ucsd.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Send eeglablist mailing list submissions to<br>
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<br>Today's Topics:<br>
<br>
1. run AMICA (Gian Marco Duma)<br>
2. NaN in AMICA (Tyler Grummett)<br>
<br><br>---------- Forwarded message ----------<br>From: Gian Marco Duma <<a href="mailto:gmduma90@gmail.com">gmduma90@gmail.com</a>><br>To: EEGLAB List <<a href="mailto:eeglablist@sccn.ucsd.edu">eeglablist@sccn.ucsd.edu</a>><br>Cc: <br>Bcc: <br>Date: Mon, 7 May 2018 20:46:41 +0200<br>Subject: [Eeglablist] run AMICA<br><div dir="ltr">Hi everybody,<div>I'm actually trying to run AMICA but I'm having some problems in doing it. I dowloaded AMICA 1.5 and I putted it into plug-in folder of EEGLAB. When I open EEGLAB I correctly find AMICA in the tools. I loaded a .set file and I tryed to run AMICA without changing the default parameters, but I had some errors in Matlab: </div><div><div><br></div><div><br></div><div><div>No datfile field found in EEG structure. Will write temp file.</div><div>Writing data file: C:\Users\Utente\Desktop\<wbr>eeglab14_1_0b\tmpdata81472.fdt</div><div>Sottodirectory o file C:\Users\Utente\Desktop\SPCN_<wbr>2017\Dati.set\SPCN_ICA_pruned\<wbr>amicaout\ già esistente. </div><div>No gm present, setting num_models to 1</div><div>No W present, exiting</div><div>Reference to non-existent field 'W'.</div><div><br></div><div>Error in runamica15 (line 873)</div><div> weights = mods.W(:,:,1);</div><div><br></div><div>Error in pop_runamica (line 242)</div><div> [W,S,mods] = runamica15(EEG.data(:,:),<wbr>arglist{:});</div></div></div><div><br></div><div>Have you any suggestions about how to solve these errors?</div><div>Thanks </div><div>Gian Marco</div></div>
<br><br>---------- Forwarded message ----------<br>From: Tyler Grummett <<a href="mailto:tyler.grummett@flinders.edu.au">tyler.grummett@flinders.edu.au</a>><br>To: EEGLABLIST <<a href="mailto:eeglablist@sccn.ucsd.edu">eeglablist@sccn.ucsd.edu</a>><br>Cc: <br>Bcc: <br>Date: Tue, 8 May 2018 03:12:51 +0000<br>Subject: [Eeglablist] NaN in AMICA<br>
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<p style="margin-top:0px;margin-bottom:0px">Dear EEGLABers (particularly Jason Palmer)</p>
<p style="margin-top:0px;margin-bottom:0px"><br>
</p>
<p style="margin-top:0px;margin-bottom:0px">Ive been using EEGLAB and AMICA for many years now and theres been an issue I've been meaning to ask about for a while now. Sometimes when I run an AMICA, the 'LL' and 'nd' in the final iteration are NaNs. For example
(last couple lines of output):</p>
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<p style="margin-top:0px;margin-bottom:0px">...</p>
<p style="margin-top:0px;margin-bottom:0px"></p>
<div> iter 3993 lrate = 0.0000004768 LL = 0.2151813642 nd = 0.0066193118, D = 0.11548E+01 0.11548E+01 ( 44.53 s, 198.0 h)</div>
<div> iter 3994 lrate = 0.0000004768 LL = 0.2151813668 nd = 0.0066193124, D = 0.11548E+01 0.11548E+01 ( 44.42 s, 197.5 h)</div>
<div> iter 3995 lrate = 0.0000004768 LL = 0.2151813695 nd = 0.0066193130, D = 0.11548E+01 0.11548E+01 ( 44.42 s, 197.5 h)</div>
<div> iter 3996 lrate = 0.0000004768 LL = 0.2151813720 nd = 0.0066193133, D = 0.11548E+01 0.11548E+01 ( 44.56 s, 198.1 h)</div>
<div> iter 3997 lrate = 0.0000004768 LL = 0.2151813746 nd = 0.0066193139, D = 0.11548E+01 0.11548E+01 ( 44.27 s, 196.8 h)</div>
<div> iter 3998 lrate = 0.0000004768 LL = 0.2151813771 nd = 0.0066193143, D = 0.11548E+01 0.11548E+01 ( 44.55 s, 198.0 h)</div>
<div> iter 3999 lrate = 0.0000004768 LL = 0.2151813797 nd = 0.0066193143, D = 0.11548E+01 0.11548E+01 ( 44.49 s, 197.7 h)</div>
<div> iter 4000 lrate = 0.0000004768 LL = 0.2151813823 nd = 0.0066193152, D = 0.11548E+01 0.11548E+01 ( 44.05 s, 195.8 h)</div>
<div> iter 4001 lrate = 0.0000004768 LL = 0.2151813824 nd = 0.0066193255, D = 0.11548E+01 0.11548E+01 ( 48.06 s, 213.6 h)</div>
<div> iter 4002 lrate = 0.0000004768 LL = 0.2151813847 nd = 0.0066193309, D = 0.11548E+01 0.11548E+01 ( 44.39 s, 197.3 h)</div>
<div> iter 4003 lrate = 0.0000004768 LL = 0.2151813871 nd = 0.0066193324, D = 0.11548E+01 0.11548E+01 ( 44.35 s, 197.1 h)</div>
<div> iter 4004 lrate = 0.0000004768 LL = 0.2151813892 nd = 0.0066193335, D = 0.11548E+01 0.11548E+01 ( 44.49 s, 197.7 h)</div>
<div> iter 4005 lrate = 0.0000004768 LL = 0.2151813914 nd = 0.0066193340, D = 0.11548E+01 0.11548E+01 ( 44.62 s, 198.2 h)</div>
<div> iter 4006 lrate = 0.0000004768 LL = NaN nd = NaN, D = 0.11548E+01 0.11548E+01 ( 44.28 s, 196.7 h)</div>
<div> Got NaN! Exiting ...</div>
<div>... done. Execution time: -10.23 h </div>
<br>
<p></p>
<p style="margin-top:0px;margin-bottom:0px">Since first noticing this till now, I have code that checks the output for this issue and reruns the AMICA. A lot of the time it will eventually and properly end with the learning rate not decreasing by 1e-9 for five
iterations (I think thats what it is). Ive checked the data, it seems fine.</p>
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</p>
<p style="margin-top:0px;margin-bottom:0px">I guess what I am asking is: "Is this an issue?" or am I incorrectly classifying it as an issue. If it is an issue, Im wondering why it doesnt reset itself.</p>
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<p style="margin-top:0px;margin-bottom:0px">Kind regards,</p>
<p style="margin-top:0px;margin-bottom:0px">Tyler</p>
<p style="margin-top:0px;margin-bottom:0px"><br>
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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>Multimodal Recording Facility</i></font></div>
<div><font face="Arial"><i>Flinders University Tonsley Building</i></font></div>
<div><font face="Arial"><i>Rm 4.17</i></font></div>
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