Hello,
No, -ONELINE does not imply -I.
The "3dvolreg -1Dmatrix_save" output is already in the direction needed, and does not need to be inverted in that case. See a more complete proc script for an additional example, such as
AFNI_data6/FT_analysis/s15.proc.FT.uber.
The cat_matvec command there as well does not invert the 3dvolreg matrix (that last mat.r$run.vr.aff12.1D input), while it does invert the other ones.
The "3dvolreg -help" output does not say it needs -I, it says that if you do want to invert it, use "cat_matvec -I".
Does that seem reasonable?
- rick
