afni.nimh.nih.gov

hi gang.

i was running one-sample t-test.

ttest=('3dttest -prefix /home/analysis/ICA -base1 0 -set2 '+session+'/result+orig')
[where,,,,,, * +session+: each subject data folder
* result+orig: result of ICA for each subject separately]

the following error message occurs

** FATAL ERROR: 3dttest: -set2 doesn't have enough datasets

What Am I wrong?