The lpSolveAPI package provides an R interface to 'lp_solve', a Mixed Integer Linear Programming (MILP) solver with support for pure linear, (mixed) integer/binary, semi-continuous and special ordered sets (SOS) models.
The lpSolveAPI package was created by Kjell Konis, I currently maintain the package.
lpSolveAPI provides an interface to lp_solve
which was last updated 2016. Therefore if you don't need callbacks it is recommended
to use ROI (https://cran.r-project.org/package=ROI, https://roi.r-forge.r-project.org/) instead.