<div dir="ltr">Dear Carolin,<div><br></div><div>Sorry for belated response.</div><div><br></div><div>> The next problem is that the interpolated channels are added at the end of the channel list, i.e., different subjects have different channel orders. </div><div><br></div><div>Are you sure? I confirmed that if you use the method I showed below, the channel order remain to be the same. </div><div><a href="https://sccn.ucsd.edu/wiki/Makoto's_preprocessing_pipeline#Interpolate_all_the_removed_channels">https://sccn.ucsd.edu/wiki/Makoto's_preprocessing_pipeline#Interpolate_all_the_removed_channels</a><br><div class="gmail_extra"><br></div><div class="gmail_extra">Could you please try it?</div><div class="gmail_extra"><br></div><div class="gmail_extra">Makoto</div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Feb 25, 2017 at 12:20 PM, Carolin Sievers (PSY) <span dir="ltr"><<a href="mailto:Carolin.Sievers@uea.ac.uk" target="_blank">Carolin.Sievers@uea.ac.uk</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">
<div style="word-wrap:break-word">
Dear Makoto,
<div><br>
</div>
<div>thank you for the prompt response. I followed your advice and then interpolated the missing channels later. The next problem is that the interpolated channels are added at the end of the channel list, i.e., different subjects have different channel
orders. </div>
<div><br>
</div>
<div>I have tried fixing this through this command:</div>
<div>
<div style="margin:0px;font-size:10px;font-family:courier;color:rgb(37,153,45)">
[~,index] = sortrows([EEG.chanlocs.urchan]<wbr>.'); EEG.chanlocs = EEG.chanlocs(index); clear index</div>
</div>
<div>However, this only changes the labels and locations but not the actual EEG.data structure. I have come across some posts related to this issue in the mailing list archives but haven’t yet found a solution. I image the reshape command may be of
use but due to the sheer size of EEG.data I find it difficult to tackle this problem.</div>
<div><br>
</div>
<div>Do you happen to have any solution for this? My final idea would be to calculate ERPs and then go through channel operations but ideally, I would like to change channel order to the EEG data structure and not just the ERP.</div>
<div><br>
</div>
<div>All the best,</div>
<div>Carolin</div>
<div><br>
<div>
<blockquote type="cite"><span class="gmail-">
<div>On 10 Feb 2017, at 03:10, Makoto Miyakoshi <<a href="mailto:mmiyakoshi@ucsd.edu" target="_blank">mmiyakoshi@ucsd.edu</a>> wrote:</div>
<br class="gmail-m_3739285464483642826Apple-interchange-newline">
</span><div>
<div dir="ltr"><span class="gmail-">Dear Carolin,
<div><br>
</div>
<div>> How do I account for that difference in channels when transferring the ICA weights matrix? Is there any way of keeping the excluded channels separate and add them back in after removal of ICs?<br>
</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">It's better to let EEGLAB take care of these consistency.</div>
<div class="gmail_extra">I recommend that reject the same channels between sender and receiver to make sure that they have the identical channel structure, then copy the weight matrix.</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">Makoto</div>
<div class="gmail_extra"><br>
</div>
</span><div class="gmail_extra"><br>
<div class="gmail_quote"><span class="gmail-">On Tue, Feb 7, 2017 at 12:53 PM, Carolin Sievers (PSY) <span dir="ltr">
<<a href="mailto:Carolin.Sievers@uea.ac.uk" target="_blank">Carolin.Sievers@uea.ac.uk</a>></span> wrote:<br>
</span><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div lang="EN-GB">
<div class="gmail-m_3739285464483642826gmail-m_1122039668202728350WordSection1"><span class="gmail-">
<p class="MsoNormal">Dear EEGLAB users,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I have a question regarding transferring ICA weights from one dataset to another (e.g., high-pass filter at 1Hz for ICA, then apply weights matrix to same data but filtered at 0.05Hz):<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">For better ICA results, I sometimes exclude some noisy channels. How do I account for that difference in channels when transferring the ICA weights matrix? Is there any way of keeping the excluded channels separate and add them back in
after removal of ICs? <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal" style="background-image:initial;background-color:white;background-size:initial;background-origin:initial;background-clip:initial;background-position:initial;background-repeat:initial">
<span style="font-size:10.5pt;font-family:arial,sans-serif;color:rgb(34,34,34)">Best wishes,</span><span style="font-size:10pt;font-family:arial,sans-serif;color:rgb(34,34,34)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background-image:initial;background-color:white;background-size:initial;background-origin:initial;background-clip:initial;background-position:initial;background-repeat:initial">
<span style="font-size:10.5pt;font-family:arial,sans-serif;color:rgb(34,34,34)">Carolin</span><span style="font-size:10pt;font-family:arial,sans-serif;color:rgb(34,34,34)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background-image:initial;background-color:white;background-size:initial;background-origin:initial;background-clip:initial;background-position:initial;background-repeat:initial">
<span style="font-size:10pt;font-family:"segoe script",sans-serif;color:rgb(34,34,34)"><br>
</span><span style="font-family:arial,sans-serif;color:rgb(34,34,34)">_________________<u></u><u></u></span></p>
<p class="MsoNormal" style="background-image:initial;background-color:white;background-size:initial;background-origin:initial;background-clip:initial;background-position:initial;background-repeat:initial">
<b><span style="font-family:arial,sans-serif;color:rgb(34,34,34)">Carolin Sievers</span></b><span style="font-size:8pt;font-family:arial,sans-serif;color:rgb(34,34,34)"> (PSY)<br>
PhD Student <br>
School of Psychology, LSB 0.111</span><span style="font-size:10pt;font-family:arial,sans-serif;color:rgb(34,34,34)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background-image:initial;background-color:white;background-size:initial;background-origin:initial;background-clip:initial;background-position:initial;background-repeat:initial">
<span style="font-size:8pt;font-family:arial,sans-serif;color:rgb(34,34,34)">University of East Anglia – Norwich Research Park</span><span style="font-size:10pt;font-family:arial,sans-serif;color:rgb(34,34,34)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background-image:initial;background-color:white;background-size:initial;background-origin:initial;background-clip:initial;background-position:initial;background-repeat:initial">
<span style="font-size:8pt;font-family:arial,sans-serif;color:rgb(34,34,34)">Norwich, NR4 7TJ, United Kingdom</span><span style="font-size:10pt;font-family:arial,sans-serif;color:rgb(34,34,34)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background-image:initial;background-color:white;background-size:initial;background-origin:initial;background-clip:initial;background-position:initial;background-repeat:initial">
<span style="font-size:8pt;font-family:arial,sans-serif;color:rgb(34,34,34)"><u></u> <u></u></span></p>
<p class="MsoNormal" style="background-image:initial;background-color:white;background-size:initial;background-origin:initial;background-clip:initial;background-position:initial;background-repeat:initial">
<u><span style="font-size:8pt;font-family:arial,sans-serif;color:rgb(46,116,181)"><a href="mailto:Carolin.Sievers@uea.ac.uk" target="_blank"><span style="color:rgb(46,116,181)">Carolin.Sievers@uea.ac.uk</span></a></span></u><span style="font-size:8pt;font-family:arial,sans-serif;color:rgb(34,34,34)"><u></u><u></u></span></p>
<p class="MsoNormal" style="background-image:initial;background-color:white;background-size:initial;background-origin:initial;background-clip:initial;background-position:initial;background-repeat:initial">
<span style="font-size:8pt;font-family:arial,sans-serif;color:rgb(46,116,181)"><a href="https://www.uea.ac.uk/psychology/people/profile/carolin-sievers" target="_blank"><span style="color:rgb(46,116,181)">https://www.uea.ac.uk/psycholo<wbr>gy/people/profile/carolin-<wbr>sievers</span></a>
<br>
<u><a href="https://twitter.com/carolinsmemory" target="_blank">https://twitter.com/carolinsme<wbr>mory</a></u></span><span style="font-size:10pt;font-family:arial,sans-serif;color:rgb(46,116,181)"><u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal" style="margin-right:46.3pt"><span lang="DE"><u></u> <u></u></span></p>
</span><p class="MsoNormal"><span style="font-family:arial,sans-serif"><image001.png></span><span style="font-family:"times new roman",serif"><u></u><u></u></span></p><span class="gmail-">
<p class="MsoNormal"><span style="font-size:9pt;font-family:arial,sans-serif"> </span><span><u></u><u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:9pt;font-family:arial,sans-serif">UK Top 15</span></b><span style="font-size:9pt;font-family:arial,sans-serif"> (Times and Sunday Times Good University Guide 2017)
<u></u><u></u></span></p>
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<p class="MsoNormal" style="margin-bottom:12pt"><b><span style="font-size:9pt;font-family:arial,sans-serif">World Top 100 for research excellence</span></b><span style="font-size:9pt;font-family:arial,sans-serif"> (Leiden Ranking
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<br>
<br clear="all">
<div><br>
</div>
-- <br>
<div class="gmail-m_3739285464483642826gmail_signature">
<div dir="ltr">Makoto Miyakoshi<br>
Swartz Center for Computational Neuroscience<br>
Institute for Neural Computation, University of California San Diego<br>
</div>
</div>
</span></div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">Makoto Miyakoshi<br>Swartz Center for Computational Neuroscience<br>Institute for Neural Computation, University of California San Diego<br></div></div>
</div></div></div>