gsDesignNB

0.3.2

Sample Size and Simulation for Negative Binomial Outcomes

0packages depend

1.4Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Keaven AndersonFirst published 2026-02-162 releasesCRAN page ↗GitHub ↗

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.

Install

R (CRAN)pak (dev)Ubuntu (r2u)openSUSE (OBS)

install.packages("gsDesignNB", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("keaven/gsDesignNB")

Development version from keaven/gsDesignNB. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-gsdesignnb

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-gsDesignNB

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 19.4 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.57

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 157 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 82%
Documented parameters: 98%
Return-value docs: 97%
References docs: 14%

Downloads

1.4K

CRAN downloads in the past year

Rank #14,328 · ~4/day · ~113/mo

Releases R versions

Daily download trend is not available in this view yet.

36030 days

74890 days

1.4K1 year

Compare downloads with other packages →

Also on37 r2u3 autocran

Repository

GitHub ↗ keaven/gsdesignnb

1Stars

1Forks

4Open issues

0Open PRs

5Releases

291Commits

4Contributors

License GPL-3.0 · 291 commits · Last activity 2026-07-11 · 0% stars, 30d

Stars over time

2025-11-26 · 12026-07-07 · 1

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/keaven/gsdesignnb on 2026-07-19.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

Show all practices

Coverage (1)

Codecov

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

18 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (5)

data.table gsDesign simtrialstatsMASS

LinkingTo (0)

none

Suggests (15)

glmmTMB httpuv testthat knitr rmarkdown ggplot2 dplyr gt scales shiny foreach doFuture future future.apply gridExtra

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (5)

Maintainer (1)

Keaven Anderson

Author, Maintainer

Authors (3)

Keaven Anderson

Author, Maintainer

Andrea Maes

Author · added in 0.3.2

Hongtao Zhang

Author

Contributors (1)

Nan Xiao

Contributor

Merck & Co., Inc., Rahway, NJ, USA and its affiliates

Package Timeline

2 releases. Pick two to compare their code metrics. R releases are shown for context.

0.3.2Latest
2026-07-07 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
0.2.6
2026-03-10
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-02-16
Total releases: 2 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.1.0
Download size: 2.5 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Report a problem with this page →