calcps

Here's the help for calcps:

VoxBo calcps (v1.8.5/Jun 14 2011)
summary:  Calc PS routine for VoxBo.
usage:
 calcps -h -i[4D data file name] -v
flags:
 -h                        Print usage information. Optional.
 -i <4D data file>         Specify the input 4D data file. Required.
 -v                        Global VoxBo version number. Optional.