Have you looked at the FSGD examples on the wiki? Do a search for FSGD.
doug

Antonella Kis wrote:
>
>
>
> Dear All,
>
> What should be my contrast vector if I want to do a direct comparison 
> between groups (patients vs. controls) after eliminating gender and 
> age? Should this be [1 -1]?
>
> Should I change my FSGD in order to be able to compare between 
> patients and controls accounting for age (I want to make sure that the 
> age does not confound my results). Please see attached my FSGD file.
>
> Also, my question is how the clusters are created: the clusters 
> formation is due to a  similar value within cortical 
> thickness(cortical thickness with similar values from patients and 
> controls are grouped together in a cluster (e.g. cluster no.1) while 
> other cortical thickness values are forming different clusters) or the 
> clusters are formed based on age -age grouping (each subject belong to 
> an age cluster)?
>
> Thank you,
> AK
>
>
>
>
>
>

-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

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