Can you send the fsgd file that is created? Also, please send more text 
output. It's hard to tell from a single line.
doug

Laura Tully wrote:
> Hi, 
>
> I am trying to run a between group analysis in QDEC whilst controlling 
> for intrancranial volume. The design has one dichotomous variable 
> (group2, group2), one continuous (performance on behavioral task), and 
> one nuisance variable (intracranial volume). each time I run it 
> qec crashes with the following error: 
>
>             MatrixMultiply: ml null! 
>
>
> What does this error mean and how can I fix it? 
>
> What is odd is that this error does not seem to be 
> consistently reproducible - after successfully running the analyses 
> without controlling for ICV, I was then able to run it with ICV as a 
> nuisance factor. 
>
> Thank you! 
>
> Laura.  
>
> -- 
> Laura Tully
> Social Neuroscience & Psychopathology
> Harvard University
> 806 William James Hall
> 33 Kirkland St
> Cambridge, MA 02138
> ltu...@fas.harvard.edu <mailto:ltu...@fas.harvard.edu>
>
>
> ------------------------------------------------------------------------
>
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-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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