Retention Curve Data Units

[spagilla]

I need some help to run RETC model. I am trying to figure out what my
retention curve data units should be in.
Thanks

[aamri]

if you are using the logiciel ( interface code ) you have the choice to select the units but if you have the code RETC.FOR i it's depend in case :

1- use the logiciel ( interface code) and the retc.for and compar them until you have the same resuls
2- in the objective fonction i think there 's a simplification by divising by the average of data