Thanks for your reply. I checked the roi-fraction output from the failed command and found no roi's with complete null timeseries (below). My command is thus:
3dNetCorr -inset $subj_data -in_rois HO_atlas_resample+tlrc. -mask MNI_Automask+tlrc -push_thru_many_zeros prefix rest_corr_${subj}_${a}_${b}
Edit: I found an ROI with a null timeseries. What can I do about this now?
Edited 1 time(s). Last edit at 09/10/2018 01:28PM by danielbrennan1.