Dear Doug,
Sorry, I am coming up with the same problem. I am running the mri_glmfit_sim on the QDEC results to get the text file with the cortical thickness average and cluster summary but unfortunately I see for one side the --sim is not give me any clusters even if I can see 5 in QDEC after choosing the threshold 2. How can I correct this so --sim can cache my clusters from QDEC?
If there is no way to correct this what should be my contrast vector if I want to eliminate AGE so I want to see the differences only between groups. In QDEC I did not choose age as covariant so I had only the discrete variable = Class. Should I take the contrast vector if I want to eliminate AGE to be equal with [1 -1] and my fsgd will not include the Age variable?
MANY THANKS! AK