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ompr.roi 1.0.2

• Fixes a bug in how the package documentation was specified.
• ompr.roi now requires at least R 3.5.0 because ompr requires it.

ompr.roi 1.0.1

• ompr.roi does not use a deprecated {Matrix} 1.4-2 function anymore.

ompr.roi 1.0.0

• ompr.roi is now licensed MIT.
• LazyData was removed from the DESCRIPTION file as is produced a CRAN warning.
• ROI’s status and message information are now part of the returned solution and can be accessed calling additional_solver_output() on the returned value.

Breaking changes

• In line with ROI’s way of encoding a general termination status, the solver_status(result) is now "success" if ROI returned code = 0, otherwise it is "error".

ompr.roi 0.8.0

Breaking changes

• The package exports column and row duals of LPs. Extracting duals might be solver dependent. Only tested with GLPK. This requires version 0.8 of ompr.
• Minimum supported R version is 3.4.0 since slam also requires >= 3.4

New features

• ompr.roi works with other ompr backends as well.
• ompr.roi always returns a solution, even if the solution status is not optimal. It extracts the ROI solution with force=TRUE.

ompr.roi 0.7.0

Major breaking changes

• The package uses the new sparse matrix interface of ompr and ROI.
• Minimum supported R version is now 3.3.0

Minor changes

• as_ROI_model exports an ‘ompr’ model to ROI::OP Github Issue #9

ompr.roi 0.6.1

Bugfix

• Fixed a bug where the ROI::V_bound object was incorrectly initialised. This causes an error with ROI >= 0.3.0.

ompr.roi 0.6.0

• First release on CRAN

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.