5.1.26 UNITSin and UNITSout

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'

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