UNITSin and UNITSout specify the units in which milk, fat and protein are provided to the program and returned to the user, respectively. Pounds ('P') and kilograms ('K') are supported; pounds is the default. If a value other than 'K' or 'P' is provided the default is used.
UNITSin = 'P'
UNITSout = 'P'
A Manual for Use of BESTPRED: A Program for Estimation of Lactation Yield and Persistency Using Best Prediction