<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV style="DIRECTION: ltr"><FONT color=#000000 size=2 face=Tahoma>Dear all,</FONT></DIV>
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<DIV style="DIRECTION: ltr"><FONT face=tahoma>I have created a STUDY with 3 groups and 2 conditions on CONTINUOUS data and want to compare spectrums of three groups. I am trying to use '''subtract individual subject mean spectrum ' but I get the following error</FONT></DIV>
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<DIV style="DIRECTION: ltr"><FONT color=#000000 size=2 face=Tahoma><B>Problem while subtracting mean spectrum.<BR>Common spectrum subtraction is performed based on<BR>pairing settings in your design. Most likely, one<BR>independent variable should not have its data paired.</B></FONT></DIV>
<DIV style="DIRECTION: ltr"><FONT color=#000000 size=2 face=Tahoma>I am using Matlab<A></A> xx and EEGlab<A></A><A></A> xxx</FONT></DIV>
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<DIV style="DIRECTION: ltr"><FONT face=tahoma>Does anybody else had this problem?</FONT></DIV>
<DIV style="DIRECTION: ltr"><FONT face=tahoma>Thanks</FONT></DIV>
<DIV style="DIRECTION: ltr"><FONT face=Tahoma>Best Regards</FONT></DIV>
<DIV style="DIRECTION: ltr"><FONT face=Tahoma>Muhammad Abul Hasan</FONT></DIV></td></tr></table>