<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Karlo,<div><br><div><blockquote type="cite"><div><div style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); font-family: arial, helvetica, sans-serif; font-size: 10pt; position: static; z-index: auto; "><div style="background-color: transparent;"><span style="background-color: transparent;"><span><span><span><span style="font-family: arial, helvetica, sans-serif; font-size: 13px;">- how do you check rank of your EEG data? (rank(EEG.data) gives error for 3d
matrix )</span></span></span></span></span></div></div></div></blockquote><div><br></div><div><br></div><div>rank(EEG.data(:,:)) will do</div><div><br></div><br><blockquote type="cite"><div><div style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); font-family: arial, helvetica, sans-serif; font-size: 10pt; position: static; z-index: auto; "><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 13px; font-family: arial, helvetica, sans-serif; font-style: normal;">- what could be wrong here or what i need to check before running ICA?</div></div></div></blockquote><div><br></div><div><br></div><div>Nothing, it is normal sometimes for the learning rate to be dicreased.</div><div><br></div><br><blockquote type="cite"><div><div style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); font-family: arial, helvetica, sans-serif; font-size: 10pt; position: static; z-index: auto; "><div style="background-color: transparent;"><span><span style="font-family: arial, helvetica, sans-serif; font-size: 13px;">- May i ask you that how do you choose your ICA options (e.g., 'pca' , 'extended1' or ...)? </span></span></div></div></div></blockquote><div><br></div><div><br></div><div>Have you read the tutorial section on ICA</div><div><br></div><div><a href="http://sccn.ucsd.edu/wiki/Chapter_09:_Decomposing_Data_Using_ICA">http://sccn.ucsd.edu/wiki/Chapter_09:_Decomposing_Data_Using_ICA</a></div><div><br></div><div>Best,</div><div><br></div><div>Arno</div><div><br></div><br><blockquote type="cite"><div><div style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); font-family: arial, helvetica, sans-serif; font-size: 10pt; position: static; z-index: auto; "><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 13px; font-family: arial, helvetica, sans-serif; font-style: normal;"><span><span style="font-family: arial, helvetica, sans-serif; font-size: 13px;"><br></span></span></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 13px; font-family: arial, helvetica, sans-serif; font-style: normal;"><span><span style="font-family: arial,
helvetica, sans-serif; font-size: 13px;">Many thanks,</span></span></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 13px; font-family: arial, helvetica, sans-serif; font-style: normal;"><span><span style="font-family: arial, helvetica, sans-serif; font-size: 13px;">Karlo </span></span></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 13px; font-family: arial, helvetica, sans-serif; font-style: normal;"><span style="background-color: transparent;"><span><span style="font-family: arial, helvetica, sans-serif; font-size: 13px;"><br></span></span></span></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 13px; font-family: arial, helvetica, sans-serif; font-style: normal;"><span style="background-color: transparent;"><span><span style="font-family: arial, helvetica, sans-serif; font-size: 13px;"> </span></span></span></div><div style="background-color:
transparent;"><span style="font-family: arial, helvetica, sans-serif; font-size: 13px;"> </span></div><div style="background-color: transparent;"><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Input data size [62,766380] = 62 channels, 766380 frames/nFinding 62 ICA components using logistic ICA.</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Decomposing 199 frames per ICA weight ((3844)^2 = 766380 weights, Initial learning rate will be 0.001, block size 68.</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Learning rate will be multiplied by 0.9 whenever angledelta >= 60 deg.</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style:
italic;">More than 32 channels: default stopping weight change 1E-7</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Training will end when wchange < 1e-007 or after 512 steps.</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Online bias adjustment will be used.</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Removing mean of each channel ...</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Final training data range: -456.566 to 562.934</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Computing the sphering
matrix...</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Starting weights are the identity matrix ...</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Sphering the data ...</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Beginning ICA training ...</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Lowering learning rate to 0.0009 and starting again.</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">step 1 - lrate 0.000900, wchange 141.51904569, angledelta 0.0 deg</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Lowering learning rate to 0.00081 and starting again.</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">step 1 - lrate 0.000810, wchange 159.49273116, angledelta 0.0 deg</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Lowering learning rate to 0.000729 and starting again.</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">step 1 - lrate 0.000729, wchange 143.22748820, angledelta 0.0 deg</font></div><div style="background-color: transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">Lowering learning rate to 0.0006561 and starting again.</font></div><div style="background-color:
transparent;"><font face="arial, helvetica, sans-serif" size="2" style="font-style: italic;">step 1 - lrate 0.000656, wchange 136.88732118, angledelta 0.0 deg</font></div></div></div></div>_______________________________________________<br>Eeglablist page: <a href="http://sccn.ucsd.edu/eeglab/eeglabmail.html">http://sccn.ucsd.edu/eeglab/eeglabmail.html</a><br>To unsubscribe, send an empty email to <a href="mailto:eeglablist-unsubscribe@sccn.ucsd.edu">eeglablist-unsubscribe@sccn.ucsd.edu</a><br>For digest mode, send an email with the subject "set digest mime" to <a href="mailto:eeglablist-request@sccn.ucsd.edu">eeglablist-request@sccn.ucsd.edu</a></blockquote></div><br></div></body></html>