Hi Gang, the whole script is:
3dMVM -prefix 3dmvm_test \
-jobs 2 \
-mask brainmask.nii \
-bsVars 'group*treat' \
-num_glt 1 \
-gltLabel 1 AvB -gltCode 1 'group : 1*a -1*b' \
-dataTable \
Subj group treat InputFile \
s1 a T1 s1_map_z.nii \
s2 a T1 s2_map_z.nii \
S3 a T2 s3_map_z.nii \
S4 a T2 s4_map_z.nii \
s5 b T1 s5_map_z.nii \
s6 b T1 s6_map_z.nii \
s7 b T2 s7_map_z.nii \
s8 b T2 s8_map_z.nii
It runs well without the glt lines:
-num_glt 1 \
-gltLabel 1 AvB -gltCode 1 'group : 1*a -1*b' \
Many thanks!