That will compute the average of the Age slope and the NHPT slope. 
Probably not what you want to do

On 4/6/19 12:24 PM, TMS lab wrote:
>
>         External Email - Use Caution
>
> Dear Freesurfer team,
>
> I'm running a correlation analysis where I'd like to corelate 
> myelination and a clinical parameter (NHPT) regressing out the effect 
> of age.
>
> My contrast.mtx: 0 0 0.5 0.5
>
> This is my FSGD FILE:
> GroupDescriptorFile 1
> Title Myelin
> Class Main
> Variables Age NHPT
> Inputfs_CGaMain  19   18.2
> .......
>
> Is the matrix ok?
>
> Thanks
> Rafael
>
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