I am trying to pull out the volumes from the aparc stats file but when I input the following (below) it produces a file identical to the area instead:

aparcstats2table --subjects 001 002 003 --hemi rh --meas volume --tablefile aparc_stats_volume_rh.txt 

It works fine for thickness and area as well aseg_stats. 

I would appreciate any help with this. 

Thank you!

Clare