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natstrat  

Obtain Unweighted Natural Strata that Balance Many Covariates
View on CRAN: Click here


Download and install natstrat package within the R console
Install from CRAN:
install.packages("natstrat")

Install from Github:
library("remotes")
install_github("cran/natstrat")

Install by package version:
library("remotes")
install_version("natstrat", "2.0.1")



Attach the package and use:
library("natstrat")
Maintained by
Katherine Brumberg
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2021-05-26
Latest Update:
Description:
Natural strata can be used in observational studies to balance the distributions of many covariates across any number of treatment groups and any number of comparisons. These strata have proportional amounts of units within each stratum across the treatments, allowing for simple interpretation and aggregation across strata. Within each stratum, the units are chosen using randomized rounding of a linear program that balances many covariates. 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 .
How to cite:
Katherine Brumberg (2021). natstrat: Obtain Unweighted Natural Strata that Balance Many Covariates. R package version 2.0.1, https://cran.r-project.org/web/packages/natstrat. Accessed 26 Aug. 2026.
Previous versions and publish date:
(2026-07-09 06:24), 1.0.0 (2021-05-26 10:10), 2.0.0 (2021-10-15 11:10)
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Complete documentation for natstrat
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