dear will and spm experts,<br>
<br>
i am facing a problem&nbsp; reported before ( thio kellerman, 9 sep
2004 ; my post, 8 apr 2005) in the mailing list, but have not heard
back anything.i was wondering if anyone could please help.<br>
<br>
i am trying to estimate a simple correlation (using contrast images
from individual subjects and individual scores on a questionnaire) in
second-level using bayesian estimation, and i keep coming up with this
error<br>
------------<br>
...<br>
...<br>
&nbsp; PEB
Iteration&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
:
1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
...7.214755e+01<br>
&nbsp; PEB
Iteration&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
:
1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
...4.364001e+02<br>
<br>
Non-sphericity&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
...REML estimation<br>
??? Error while evaluating uicontrol Callback.<br>
<br>
<br>
??? Conversion to unknown from double is not possible.<br>
<br>
Error in ==&gt; /app/spm2/spm_spm_Bayes.m<br>
On line 338&nbsp; ==&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PPM.Cb(v,v)&nbsp;&nbsp;&nbsp;&nbsp; = P{2}.C(j,j);<br>
-------------<br>
the design is estimated fine using WLS.<br>
<br>
many thanks for any suggestions!<br>
<br>
bhisma<br>
<br>
<br>
---------------------------------<br>
Bhismadev Chakrabarti<br>
Department of Psychiatry<br>
University of Cambridge<br>
Cambridge, UK<br>