<div dir="ltr"><div>Hi John, </div><div> This is certainly a very weird behavior. Would you mind to share the dataset with us so we can take a look at it?</div><div> Thanks,</div><div>Ramon</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, May 16, 2018 at 11:24 AM, Johnson, John T. <span dir="ltr"><<a href="mailto:john.johnson@gatech.edu" target="_blank">john.johnson@gatech.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word;line-break:after-white-space">
<div>When I load a data set, the rank of the data is 58, the same as the number of channels.</div>
<div>Making no changes and saving the data set with another name, the rank changes to 1.</div>
<div>I like saving data at various check points while preprocessing, and this change in rank can affect specifying rank for the pca option to ica, or pcakeep to AMICA.</div>
<div>
<div>Any ideas?</div>
</div>
<div><br>
</div>
<div>>> EEG = pop_loadset('filename','pre_<wbr>p36_nv_to.set','filepath','<wbr>Processed/');</div>
<div>pop_loadset(): loading file Processed/pre_p36_nv_to.set ...</div>
<div>Reading float file 'Processed/pre_p36_nv_to.fdt'.<wbr>..</div>
<div>>> rank(EEG.data)</div>
<div><br>
</div>
<div>ans =</div>
<div><br>
</div>
<div> 58</div>
<div><br>
</div>
<div>>> EEG = pop_saveset( EEG, 'filename', 'rankdef.set' );</div>
<div>Saving dataset...</div>
<div>>> rank(EEG.data)</div>
<div><br>
</div>
<div>ans =</div>
<div><br>
</div>
<div> 1</div>
<div><br>
</div>
<div>>> rank(EEG.data')</div>
<div><br>
</div>
<div>ans =</div>
<div><br>
</div>
<div> 1</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div style="color:rgb(0,0,0);font-family:"Gentium Basic";font-size:16px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<div>Thanks,</div>
<div>John</div>
<div><br>
</div>
</div>
</div>
</div>
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</div>