lpSolve

lpSolve: Interface to Lp_solve v. 5.5 to solve linear/integer programs. Lp_solve is freely available (under LGPL 2) software for solving linear, integer and mixed integer programs. In this implementation we supply a ”wrapper” function in C and some R functions that solve general linear/integer problems, assignment problems, and transportation problems. This version calls lp_solve version 5.5.