If LOGon is set to 1 then log messages (messages about the operation of BESTPRED) will be written to the file LOGfile. Note that LOGfile is limited to 64 characters. The date (YYYYMMDD) is appended to LOGfile to create the file name (e.g. logfile.20080403).
LOGfile = 'logfile'
A Manual for Use of BESTPRED: A Program for Estimation of Lactation Yield and Persistency Using Best Prediction