Package: hbal
Type: Package
Title: Hierarchically Regularized Entropy Balancing
Version: 1.3.0
Date: 2026-09-17
Authors@R: c(
  person("Yiqing", "Xu", , "yiqingxu@stanford.edu", c("aut", "cre"), comment = c(ORCID = "0000-0003-2041-6671")),
  person("Eddie", "Yang", , "z5yang@ucsd.edu", c("aut"))
  )
Description: Implements hierarchically regularized entropy balancing
        proposed by Xu and Yang (2022) <doi:10.1017/pan.2022.12>. The
        method adjusts the covariate distributions of the control group
        to match those of the treatment group. 'hbal' automatically
        expands the covariate space to include higher order terms and
        uses cross-validation to select variable penalties for the
        balancing conditions.
URL: https://yiqingxu.org/packages/hbal/
BugReports: https://github.com/xuyiqing/hbal/issues
License: MIT + file LICENSE
Depends: R (>= 3.6.0)
Imports: Rcpp (>= 1.0.1), estimatr, glmnet, gtable, gridExtra, ggplot2,
        stringr, nloptr, generics
Suggests: MASS, knitr, rmarkdown, broom, ebal, testthat (>= 3.0.0)
LinkingTo: Rcpp, RcppEigen
Encoding: UTF-8
LazyData: true
RoxygenNote: 7.2.3
Config/testthat/edition: 3
NeedsCompilation: yes
Config/pak/sysreqs: cmake libicu-dev
Repository: https://xuyiqing.r-universe.dev
Date/Publication: 2026-09-18 05:53:04 UTC
RemoteUrl: https://github.com/xuyiqing/hbal
RemoteRef: HEAD
RemoteSha: a906839ae728d3cd75e0c954e2c244c5622ab277
Packaged: 2026-10-18 07:56:51 UTC; root
Author: Yiqing Xu [aut, cre] (ORCID: <https://orcid.org/0000-0003-2041-6671>),
  Eddie Yang [aut]
Maintainer: Yiqing Xu <yiqingxu@stanford.edu>