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Dear FreeSurfer Experts,
Just reposting this since I did not see it on the forum. I am trying to run
longitudinal gyrification analyses following the FreeSurfer Linear Mixed
Effects Models instructions, and I ran into a problem using lme_mass_fit_vw. I
have 49 participants, and each participant has 2 timepoints.
My model is: Yij = ß1 + ß2*tij +ß3*adjBACi + ß4*adjBACi *tij + ß5*sexi +
ß6*ICVi + b1i + b2i*tij + eij
lhcortex 1x149955 uint32
lhsphere 1x1 struct
M 98x4 double
mri 1x1 struct
ni 49x1 double
Qdec 99x4 cell
sID 98x1 cell
X 98x6 double
Y 98x163842 double
X Column 1 = column of 1s
X Column 2 = column of alternating 0s and 1s (corresponding to either time 1 or
time 2)
X Column 3 = adjBAC
X Column 4 = adjBAC * column 2
X Column 5 = participant's sex
X Column 6 = participant's ICV
After following the steps in the FreeSurfer instructions, I ran this code:
lhstats = lme_mass_fit_vw(X,[1],Y,ni,lhcortex);
And I got the following errors:
Error using parfor_progress (line 17)
Do you have write permissions for
/Applications/freesurfer/matlab/lme/mass_univariate?
Error in lme_mass_fit (line 155)
fn = parfor_progress('init',nv);
Error in lme_mass_fit_vw (line 73)
[stats1,st1] = lme_mass_fit(X,[],Xrows,Zcols,Y,ni,prs,e);
Do you know what I am doing wrong? I am using Matlab R2018b (with parallel
computing) and FreeSurfer v.6.0. Please let me know if you need me to provide
you with any additional information.
Thank you!
Jessica Hua
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