Dear FSL members,
I need your help with setting up the design matrix for randomize. I have DTI parameters data three groups: controls (22), Chronic (17) and Sub_acute (10). This is how I have set it up but I am not sure if I did it right. These are in alphabetical order, hence the chronics (17) are the first group, controls (22) the second and sub_acute (10) the third.
NumWaves 3
/NumPoints 49
/PPheights 1 1 1
/Matrix
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
1 0 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 1 0
0 0 1
0 0 1
0 0 1
0 0 1
0 0 1
0 0 1
0 0 1
0 0 1
0 0 1
0 0 1
And my design.con is like this:
/NumWaves 3
/NumContrasts 9
/PPheights 1 1
/Matrix
1 0 0
0 1 0
0 0 1
1 -1 0
-1 1 0
0 1 -1
0 -1 1
1 0 -1
-1 0 1
Please advise.
Thanks,
Eyesha
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