For within modality, you can add --pca to mri_glmfit (run it with --help 
to get more info). We do not have ICA tools in FS.

On 12/01/2016 02:04 PM, Foo Keat Mak wrote:
> Hi Freesurfer Team,
> For a given group, I want to look at the covariance patterns between 
> thickness and PET.  Within Freesurfer, what are some general workflow 
> tips on how I could go about performing PCA (within modality) or joint 
> ICA analyses looking at the covariance patterns across modalities?  Is 
> the -pca flag a good starting point?
> Any feedback is appreciated!
> Thanks a lot.
> Best Wishes,
> Elijah
> _______________________________________________
> Freesurfer mailing list

Douglas N. Greve, Ph.D.
MGH-NMR Center
Phone Number: 617-724-2358
Fax: 617-726-7422


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