These examples show how to set units in pNbody

./setunits.py :

use one of 
  - unitsparameters
  - params
  - UnitLength_in_cm=1,UnitVelocity_in_cm_per_s=1,UnitMass_in_g=1

2. pass directely in the pNbody constructor

./setunits_2.py

3. create a system of units and do some conversions

./setunits_3.py

4. open a file with its file parameter and do some conversions

./setunits_4.py