You have 3 groups and 2 covariates, so you will have 3*(2+1)=9
regressors, in this order
ADHD-offset COM-offset TD-offset ADHD-Age COM-Age TD-AGE ADHC-IQ COM-IQ
TD-IQ
You will need to have a single value for each regressor in your contrast
matrix, meaning that you should have 9 values. You have
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Dear FreeSurfer experts,
I get this error message when running group analysis on cortical thickness
using glmfit:
ERROR: dimension mismatch between X and contrast
Contrasts/ADHD_COM_TD_age_IQ.mtx X has 9 cols, C has 10 cols
Please find attached the
