ompr 0.8.0
General changes
- Removed
dplyr dependency
- Added
MILPModel, a new, vectorized backend for mixed integer linear programs that can handle very large models. It will eventually replace MIPModel.
- Added two functions (
get_column_duals, get_row_duals) to extract the dual (column and row) values from an LP.
- The minimum supported R version is now
3.2.0
get_solution now always return a solution, even if the solution status is not optimal.get_solution has a third argument type with permitted values being “primal” and “dual” to return the respective column primal or dual values.
Bugfixes
- You can now extract solutions of indexed variables that have length one (#198)
ompr 0.7.0
Breaking changes
ompr now uses sparse constraint matrices. extract_constraints now returns a sparse matrix and objective_function returns a sparse vector.- The minimum supported R version is now
3.3.0
- Fixed an issue with
Rcpp. The minimum Rcpp version is now 0.12.12
Minor changes
- New progress bar based on the
progress package.
ompr 0.6.0