The problem is that your variable is always0 for the HC group. This
creates a regressors of all 0s when using DODS. One way around this is
to use DOSS (--fsgd your.fsgd doss) and change the contrast matrix. This
may not be the model you want (it will assume that the change due to
Antipsychotic
Hello FreeSurfer Group
I would like to make a two group comparison controlling for both gender and
medication status. The only way that I have sorted out doing this is to
make eight groups (ClinicalGroup x Sex x Meds) but I get an error that my
design is poorly scaled:
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