A Solver for 'ompr' that Uses the R Optimization Infrastructure ('ROI')

A solver for 'ompr' based on the R Optimization Infrastructure ('ROI'). The package makes all solvers in 'ROI' available to solve 'ompr' models. Please see the 'ompr' website < https://dirkschumacher.github.io/ompr> and package docs for more information and examples on how to use it.


News

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 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

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

Reference manual

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install.packages("ompr.roi")

0.8.0 by Dirk Schumacher, a year ago


https://github.com/dirkschumacher/ompr.roi


Report a bug at https://github.com/dirkschumacher/ompr.roi/issues


Browse source code at https://github.com/cran/ompr.roi


Authors: Dirk Schumacher [aut, cre]


Documentation:   PDF Manual  


GPL-3 license


Imports ROI, slam, methods, Matrix, ompr

Suggests testthat, magrittr, ROI.plugin.glpk


See at CRAN