optrefine: Optimally Refine Strata
Splits initial strata into refined strata that optimize covariate balance. For more information, please see Brumberg, Small, and Rosenbaum (2024) <doi:10.1093/biomtc/ujae061>. To solve the linear program, the 'Gurobi' commercial optimization software is recommended, but not required. The 'gurobi' R package can be installed following the instructions at <https://docs.gurobi.com/projects/optimizer/en/current/reference/r/setup.html> after claiming your free academic license at <https://www.gurobi.com/academia/academic-program-and-licenses/>.
| Version: | 1.1.1 |
| Depends: | R (≥ 2.10), MASS, Rglpk, sampling, ggplot2 |
| Suggests: | covr, gurobi, testthat (≥ 3.0.0) |
| Published: | 2026-02-03 |
| DOI: | 10.32614/CRAN.package.optrefine |
| Author: | Katherine Brumberg
 [aut, cre] |
| Maintainer: | Katherine Brumberg <kbrum at umich.edu> |
| BugReports: | https://github.com/kkbrum/optrefine/issues |
| License: | GPL (≥ 3) |
| URL: | https://github.com/kkbrum/optrefine, https://kkbrum.github.io/optrefine/ |
| NeedsCompilation: | no |
| Language: | en-US |
| Citation: | optrefine citation info |
| Materials: | README, NEWS |
| CRAN checks: | optrefine results |
Documentation:
| Reference manual: | optrefine.html , optrefine.pdf |
Downloads:
| Package source: | optrefine_1.1.1.tar.gz |
| Windows binaries: | r-devel: optrefine_1.1.0.zip, r-release: optrefine_1.1.0.zip, r-oldrel: optrefine_1.1.1.zip |
| macOS binaries: | r-release (arm64): optrefine_1.1.0.tgz, r-oldrel (arm64): optrefine_1.1.0.tgz, r-release (x86_64): optrefine_1.1.1.tgz, r-oldrel (x86_64): optrefine_1.1.1.tgz |
| Old sources: | optrefine archive |
Linking:
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