Package: chandwich
Title: Chandler-Bate Sandwich Loglikelihood Adjustment
Version: 1.1.6
Date: 2025-12-30
Authors@R: c(
    person(c("Paul", "J."), "Northrop", email = "p.northrop@ucl.ac.uk", 
      role = c("aut", "cre", "cph")),
    person(c("Richard", "E."), "Chandler", role = c("aut", "cph"))
    )
Description: Performs adjustments of a user-supplied independence
        loglikelihood function using a robust sandwich estimator of the
        parameter covariance matrix, based on the methodology in
        Chandler and Bate (2007) <doi:10.1093/biomet/asm015>.  This can
        be used for cluster correlated data when interest lies in the
        parameters of the marginal distributions or for performing
        inferences that are robust to certain types of model
        misspecification.  Functions for profiling the adjusted
        loglikelihoods are also provided, as are functions for
        calculating and plotting confidence intervals, for single model
        parameters, and confidence regions, for pairs of model
        parameters.  Nested models can be compared using an adjusted
        likelihood ratio test.
Imports: graphics, methods, numDeriv, stats, utils
License: GPL (>= 2)
LazyData: TRUE
Encoding: UTF-8
Depends: R (>= 3.3.0)
RoxygenNote: 7.3.3
Suggests: knitr, rmarkdown, sandwich, testthat
VignetteBuilder: knitr
URL: https://paulnorthrop.github.io/chandwich/,
        https://github.com/paulnorthrop/chandwich
BugReports: https://github.com/paulnorthrop/chandwich/issues
Config/testthat/edition: 3
Repository: https://paulnorthrop.r-universe.dev
Date/Publication: 2026-01-01 01:46:16 UTC
RemoteUrl: https://github.com/paulnorthrop/chandwich
RemoteRef: HEAD
RemoteSha: d32529b26bcf1b68a48d5060dc817da2e7f7b899
NeedsCompilation: no
Packaged: 2026-05-31 10:32:41 UTC; root
Author: Paul J. Northrop [aut, cre, cph],
  Richard E. Chandler [aut, cph]
Maintainer: Paul J. Northrop <p.northrop@ucl.ac.uk>