Package: clubSandwich
Title: Cluster-Robust (Sandwich) Variance Estimators with Small-Sample
        Corrections
Version: 0.6.1
Authors@R: c(
  person(c("James","E."), "Pustejovsky", email = "jepusto@gmail.com", role = c("aut", "cre"), comment = c(ORCID = "0000-0003-0591-9465")),
  person("Samuel", "Pekofsky", email = "sampekofsky@gmail.com", role = "ctb"),
  person("Jingru", "Zhang", email = "jz26372022@hotmail.com", role = "ctb")
  )
Description: Provides several cluster-robust variance estimators (i.e.,
    sandwich estimators) for ordinary and weighted least squares linear regression
    models, including the bias-reduced linearization estimator introduced by Bell
    and McCaffrey (2002) 
    <https://www150.statcan.gc.ca/n1/pub/12-001-x/2002002/article/9058-eng.pdf> and 
    developed further by Pustejovsky and Tipton (2017) 
    <DOI:10.1080/07350015.2016.1247004>. The package includes functions for estimating
    the variance- covariance matrix and for testing single- and multiple-
    contrast hypotheses based on Wald test statistics. Tests of single regression
    coefficients use Satterthwaite or saddle-point corrections. Tests of multiple-
    contrast hypotheses use an approximation to Hotelling's T-squared distribution.
    Methods are provided for a variety of fitted models, including lm() and mlm
    objects, glm(), geeglm() (from package 'geepack'), lm_robust() and lm_lin() 
    (from package 'estimatr'), ivreg() (from package 'AER'), ivreg() (from package 'ivreg' when 
    estimated by ordinary least squares), plm() (from package 'plm'), gls() and 
    lme() (from 'nlme'), lmer() (from `lme4`), robu() (from 'robumeta'), and rma.uni() 
    and rma.mv() (from 'metafor').
URL: http://jepusto.github.io/clubSandwich/
BugReports: https://github.com/jepusto/clubSandwich/issues
Depends: R (>= 3.0.0)
License: GPL-3
VignetteBuilder: knitr
LazyData: true
Imports: stats, sandwich, lifecycle
Suggests: Formula, knitr, carData, geepack, metafor, metadat, robumeta,
        nlme, mlmRev, AER, plm (>= 1.6-4), Matrix, lme4, zoo, testthat,
        rmarkdown, covr, ivreg, estimatr, fixest
RoxygenNote: 7.3.2
Encoding: UTF-8
Language: en-US
NeedsCompilation: no
Packaged: 2025-07-30 13:45:12 UTC; jamespustejovsky
Author: James E. Pustejovsky [aut, cre] (ORCID:
    <https://orcid.org/0000-0003-0591-9465>),
  Samuel Pekofsky [ctb],
  Jingru Zhang [ctb]
Maintainer: James E. Pustejovsky <jepusto@gmail.com>
Repository: CRAN
Date/Publication: 2025-07-30 14:30:02 UTC
Built: R 4.5.1; ; 2025-10-06 01:58:35 UTC; windows
