It sounds like you will just need to create your own design matrix and then feed it into mri_glmfit with --X (and not include --fsgd)
On 2/12/19 12:03 AM, Abhinav Yadav wrote:
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Hello,
I am trying to do GLM analysis for cortical thickness with a behavioral score. I wanted to explore square fit in the GLM. Basically wanted to see weather the behaviour is related in a quadratic function instead of linear one.
Couldn't find any option for this is GLM fit.
I was thinking of feeding a squareroot values of the behavioural parameter in the GLM as an alternative. But not sure weather that will work. Please any one can help me with this.
Thanks, Abhinav
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