Hi,

I have been running group analysis of thickness, with no problems. However, when trying to run a group analysis of curv.pial the mri_glmfit crashes. I'm basically using the same group descriptor file, contrast matrix, and command line as for thickness, but keep getting the error message:

   Matrix condition is 1
   search space = 104352
   ERROR: dimension mismatch between y and X.
     y has 1 inputs, X has 31 rows.

I'm running a very simple analysis, with just two groups, 31 subjects, and no variables.

Ideas?

Thanks,
Per
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