Hello,

While running group analysis (mri_glmfit step), on an admittedly tiny subject group (3). I used two classes (male/female) and age. I received the following error:

ERROR: DOF = 0

I am wondering if three subjects is too small a data set for this to run or if I am just doing something wrong. It got through the other preprocessing steps, but got stuck here.

My contrast vector is [0 0 1] like the tutorial.

Thanks for any help.

Adam

adam

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