Re: [Freesurfer] Registration & segmentation with FSL - obtaining correlation matrix..

Sorry, I don't think we have such a program. You could do it in matlab fairly easily, eg,

f = MRIread('filtered_func_data'); fmat = fast_vol2mat(f); a = MRIread('aparc+aseg'); seglist = unique(a.vol(:)); seglist = seglist(2:end); % remove segid=0 (unkown) clear roimean for nthseg = 1:length(seglist) ind = find(a.vol == seglist(nthseg)); roimean(:,nthseg) = mean(fmat(:,ind),2); end

m = roimean'*roimean;

On 01/31/2013 01:29 PM, Sudhin A. Shah wrote:

Hello,

This worked perfectly 2 years ago :), but now I am having some trouble.

I run reg-feat2anat & aseg2feat with no problem.

I now need a correlation matrix of every ROI (created by freesurfer) against every other ROI. For this I used @ROI_Corr_Mat (http://afni.nimh.nih.gov/pub/dist/doc/program_help/@ROI_Corr_Mat.html). Again - this worked fine in the past.

Now I get an error (working with AFNI to see if it can be fixed).

Question: Is there any alternative to getting this correlation matrix? i.e every ROI against every other ROI?

Thanks, S

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