Hi,
Now I would like to run 3dLME because I have some subjects who have missing data, e.g., some subjects have 2 sessions (baseline and 6 weeks) while others have 3 sessions (baseline, week6, and week16) which would allow me to use more subjects. Also, I wanted it to use because each subject may have a unique intercept (baseline myelin content) as well as a slope (change in myelin from baseline to wee6 or week16). I am controlling for age and gender effects.

Question 1 is whether my 3dLME script looks correct (more specifically the model and ranEff flags; see below)

Question 2 is how do I include missing data? See sub-patient02 on the InputFile column below (has the first 2 sessions, but not a 3rd session)

Thanks

3dLME -prefix /path_to_dir/myelin_gm-masked.nii \
-mask /path_to_mask/gm_mask_v2.nii \
-model 'Session+Age+Gender' \
-qVars 'Age' \
-ranEff '~1+Session' \
-SS_type 3 \
-num_glt 3 \
-gltLabel 1 's1-s2' -gltCode 1 'Session : +1*ses-01 -1*ses-02' \
-gltLabel 2 's1-s3' -gltCode 2 'Session : +1*ses-01 -1*ses-03' \
-gltLabel 3 's2-s3' -gltCode 3 'Session : +1*ses-02 -1*ses-03' \
-dataTable \
Subj Session Age Gender InputFile \
sub-patient01 ses-01 25 1 /path_to_data/subjects/sub-patient01/ses-01/anat/wemt1w_on_t2w_masked.nii \
sub-patient02 ses-01 18 1 /path_to_data/subjects/sub-patient02/ses-01/anat/wemt1w_on_t2w_masked.nii \
sub-patient03 ses-01 28 0 /path_to_data/subjects/sub-patient03/ses-01/anat/wemt1w_on_t2w_masked.nii \
sub-patient01 ses-02 25 1 /path_to_data/subjects/sub-patient01/ses-02/anat/wemt1w_on_t2w_masked.nii \
sub-patient02 ses-02 18 1 /path_to_data/subjects/sub-patient02/ses-02/anat/wemt1w_on_t2w_masked.nii \
sub-patient03 ses-02 28 0 /path_to_data/subjects/sub-patient03/ses-02/anat/wemt1w_on_t2w_masked.nii \
sub-patient01 ses-03 25 1 /path_to_data/subjects/sub-patient01/ses-03/anat/wemt1w_on_t2w_masked.nii \
sub-patient02 ses-03 18 1 \
sub-patient03 ses-03 28 0 /path_to_data/subjects/sub-patient03/ses-03/anat/wemt1w_on_t2w_masked.nii \



Edited 2 time(s). Last edit at 02/16/2019 10:45AM by O.M..