Hi, I am trying to run a group analysis on cortical thickness between patients and controls. In the qdec.dat I set a MMSE for all the controls 0.0. Now, whenever I try to covariate thickness against age and MMSE, the qdec complains that there is no spectrum in MMSE values. I tried to set MMSE for one of controls to 0.1 and the analysis goes fine. After thinking for a while, I started to wonder whether I shouldn't calculate thickness difference first, but I am not finding the receipt on the web anymore.
Thanks in advance, Martin _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
