Package: gsDesignNB
Version: 0.3.2
Title: Sample Size and Simulation for Negative Binomial Outcomes
Authors@R: c(
    person("Keaven", "Anderson", email = "keaven_anderson@merck.com", role = c("aut", "cre")),
    person("Hongtao", "Zhang", role = "aut"),
    person("Andrea", "Maes", role = "aut"),
    person("Nan", "Xiao", role = "ctb"),
    person("Merck & Co., Inc., Rahway, NJ, USA and its affiliates", role = "cph",
           comment = c(ROR = "02891sr49"))
    )
Description: Provides tools for planning and simulating recurrent event trials
    with overdispersed count endpoints analyzed using negative binomial (or
    Poisson) rate models. Implements sample size and power calculations for
    fixed designs with variable accrual, dropout, maximum follow-up, and event
    gaps, including methods of Zhu and Lakkis (2014) <doi:10.1002/sim.5947> and
    Friede and Schmidli (2010) <doi:10.3414/ME09-02-0060> as well as
    extensions for score-test sizing and gaps between events. Supports group
    sequential monitoring by building on the 'gsDesign' package.
    Includes recurrent-event simulation utilities (including seasonal rates),
    interim data truncation, Wald and score-test inference for rate ratios,
    and information estimation and sample size re-estimation with or without
    treatment-group labels.
License: GPL (>= 3)
URL: https://keaven.github.io/gsDesignNB/,
        https://github.com/keaven/gsDesignNB
BugReports: https://github.com/keaven/gsDesignNB/issues
Encoding: UTF-8
Depends: R (>= 4.1.0)
Imports: data.table, gsDesign (>= 3.10.0), simtrial, stats, MASS
Suggests: glmmTMB, httpuv, testthat (>= 3.0.0), knitr, rmarkdown,
        ggplot2, dplyr, gt, scales, shiny, foreach, doFuture, future,
        future.apply, gridExtra
VignetteBuilder: knitr
Config/testthat/edition: 3
Config/roxygen2/version: 8.0.0
NeedsCompilation: no
Packaged: 2026-07-06 19:32:18 UTC; Anderkea
Author: Keaven Anderson [aut, cre],
  Hongtao Zhang [aut],
  Andrea Maes [aut],
  Nan Xiao [ctb],
  Merck & Co., Inc., Rahway, NJ, USA and its affiliates [cph] (ROR:
    <https://ror.org/02891sr49>)
Maintainer: Keaven Anderson <keaven_anderson@merck.com>
Repository: CRAN
Date/Publication: 2026-07-06 20:00:02 UTC
Built: R 4.5.3; ; 2026-07-28 17:24:39 UTC; windows
