Questions about linear programming are more suitable for the Mathematical Optimization, Discrete-Event Simulation, and OR community.  Also, note that PROC LP is a legacy procedure no longer under active development.  PROC OPTMODEL is recommended instead.  See this SAS Global Forum paper: http://support.sas.com/resources/papers/proceedings11/200-2011.pdf ... View more

Questions about PROC LP in SAS/OR are better suited for the Mathematical Optimization and Operations Research Community.  If you still need help, please post there.  Please note that LP is a legacy procedure; OPTMODEL, OPTLP, and OPTMILP are recommended instead. ... View more