<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div><span>Hello,<br></span></div><div><span> <br></span></div><div><span> I came across ICA. When we RUN ICA we get 3
matrices,ICA weight, ICA winv and ICA Sphere. Let us say in my case
30x30. </span></div><div><span></span><br></div><div><br></div><span><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;">1)
My question is that in weight matrix (after running ICA) what are the
rows and what are the column values. I mean in terms of Electrodes? Can
we use Rows as Electrodes? colummn as components.<br></div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><br></div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;">2) I went on your website and I read ''<b>S=WX''</b>,
and X is the EEG data etc. in terms of S,W,X what is the relation of
those three matrices we obtain after RUN ICA. Can we say W= weight
matrix? S=ICAsphere, ICAwinv=W inverse.</div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;">so out of these matrices is anyone is X? or we will have to compute.</div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;">I
am basically confused in THE weight matrix after RUN ICA we obtain and
have no labels on rows and columns. So i want to ask what are these
values (rows) from left to right electrodes or components? or column
value are electrodes? or both not?<br></div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><br></div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><br></div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;">Thank you for your time.</div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><br></div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;">Regards,</div>Hamad Javaid.</span></div></div></div></body></html>