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Sure! The fsgd file looks like this:
GroupDescriptorFile 1
Title cortisol_CSF
Class Main
Variables cortisol_CSF
Input 011_S_0003_S9128 Main 2.397895273
Input 022_S_0004_S9233 Main 2.772588722
Input 011_S_0005_S9137 Main 3.044522438
Input 011_S_0008_S9196 Main 2.397895273
Input 011_S_0010_S8800 Main 2.151762203
... (n=300)
Best,
Laura.
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On 4/3/2022, Douglas N. Greve wrote:
Can you send the fsgd file?
On 4/1/2022, Laura Willers de Souza wrote:
Hello FreeSurfer Developers,
I'm extracting beta values from some analyzes and I would like to know if I'm extracting and interpreting these values correctly.
To extract the beta values I used this command: mri_segstats --seg lh.cortisol_CSF.glmdir/cortisol_CSF_slope/perm.th20.neg.sig.ocn.mgh --i lh.cortisol_CSF.glmdir/beta.mgh --excludeid 0 --avgwf lh.cortisol_CSF.beta.clusters.dat
The model consists of 1 group and 1 covariate.
I used the contrasts for intercept and slope.
The beta values extraction file contains 2 lines (image below).
[cid:228fe1e8-abaa-4279-83ec-5c81c3fb6a37]
* Would the first line be the beta value for the intercept and the
second line for the slope?
* Thus the glm equation for the 1st cluster would be: cortical
thickness = 2.57 - 0.12X + n
Is this correct?
