Package: gfoRmula
Title: Parametric G-Formula
Version: 1.1.2
Authors@R: c(person("Victoria", "Lin", role = c("aut"), 
                     email = "vlin@alumni.harvard.edu", 
                     comment = "V. Lin and S. McGrath made equal 
                     contributions"),
              person("Sean", "McGrath", role = c("aut", "cre"),
                      email = "sean.mcgrath514@gmail.com", 
                      comment = c(ORCID = "0000-0002-7281-3516", 
                      "V. Lin and S. McGrath made equal contributions")),
              person("Zilu", "Zhang", role = c("aut"),
                      email = "zilu_zhang@dfci.harvard.edu"),
              person("Roger W.", "Logan", role = c("aut"),
                      email = "rwlogan@hsph.harvard.edu"),
              person("Lucia C.", "Petito", role = c("aut"),
                      email = "petito@hsph.harvard.edu"),
              person("Jing", "Li", role = c("aut"), 
                      email = "jing_li@hsph.harvard.edu"),
              person("McGee", "Emma", role = c("aut"), 
                      email = "emcgee@hsph.harvard.edu", 
                      comment = c(ORCID = "0000-0002-7456-6408")),
              person("Cheng", "Carrie", role = c("aut"), 
                      email = "zcheng@hsph.harvard.edu"),
              person("Jessica G.", "Young", role = c("aut"),
                      email = "jyoung@hsph.harvard.edu",
                      comment = c(ORCID = "0000-0002-2758-6932", 
                      "M.A. Hernán and J.G. Young made equal contributions")),
              person("Miguel A.", "Hernán", role = c("aut"),
                      email = "mhernan@hsph.harvard.edu",
                      comment = "M.A. Hernán and J.G. Young made equal  
                      contributions"),
              person("2019 The President and Fellows of Harvard College", 
                      role = c("cph")))
Description: Implements the non-iterative conditional expectation
        (NICE) algorithm of the g-formula algorithm (Robins (1986)
        <doi:10.1016/0270-0255(86)90088-6>, Hernán and Robins (2024,
        ISBN:9781420076165)). The g-formula can estimate an outcome's
        counterfactual mean or risk under hypothetical treatment
        strategies (interventions) when there is sufficient information
        on time-varying treatments and confounders. This package can be
        used for discrete or continuous time-varying treatments and for
        failure time outcomes or continuous/binary end of follow-up
        outcomes. The package can handle a random measurement/visit
        process and a priori knowledge of the data structure, as well
        as censoring (e.g., by loss to follow-up) and two options for
        handling competing events for failure time outcomes.
        Interventions can be flexibly specified, both as interventions
        on a single treatment or as joint interventions on multiple
        treatments. See McGrath et al. (2020)
        <doi:10.1016/j.patter.2020.100008> for a guide on how to use
        the package.
Depends: R (>= 3.5.0)
License: GPL-3
Encoding: UTF-8
LazyData: true
RoxygenNote: 7.3.2
Imports: data.table, ggplot2, ggpubr, grDevices, nnet, parallel,
        progress, stats, stringr, survival, truncnorm, truncreg, utils
Suggests: Hmisc, knitr, randomForest, rmarkdown, testthat (>= 3.0.0)
VignetteBuilder: knitr
URL: https://github.com/CausalInference/gfoRmula,
        https://doi.org/10.1016/j.patter.2020.100008
BugReports: https://github.com/CausalInference/gfoRmula/issues
Config/testthat/edition: 3
Config/pak/sysreqs: cmake make libicu-dev
Repository: https://causalinference.r-universe.dev
Date/Publication: 2025-11-03 16:01:40 UTC
RemoteUrl: https://github.com/causalinference/gformula
RemoteRef: HEAD
RemoteSha: 86653ca1315f24a96a41b0ef590af13228f90ab4
NeedsCompilation: no
Packaged: 2026-06-14 07:24:47 UTC; root
Author: Victoria Lin [aut] (V. Lin and S. McGrath made equal contributions),
  Sean McGrath [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-7281-3516>, V. Lin and S. McGrath made
    equal contributions),
  Zilu Zhang [aut],
  Roger W. Logan [aut],
  Lucia C. Petito [aut],
  Jing Li [aut],
  McGee Emma [aut] (ORCID: <https://orcid.org/0000-0002-7456-6408>),
  Cheng Carrie [aut],
  Jessica G. Young [aut] (ORCID: <https://orcid.org/0000-0002-2758-6932>,
    M.A. Hernán and J.G. Young made equal contributions),
  Miguel A. Hernán [aut] (M.A. Hernán and J.G. Young made equal
    contributions),
  2019 The President and Fellows of Harvard College [cph]
Maintainer: Sean McGrath <sean.mcgrath514@gmail.com>