R Observatory: Metrics for gsDesign2 version 1.2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

gsDesign2

1.2.0Package record

Group Sequential Design with Non-Constant Effect

0packages dependsuggested by 1

8.2Kdownloads / year

92.5%test coverage

13/13flavors OK

Overview

About

Maintained by Yujie ZhaoCRAN page ↗GitHub ↗Website ↗Issues ↗

The goal of 'gsDesign2' is to enable fixed or group sequential design under non-proportional hazards. To enable highly flexible enrollment, time-to-event and time-to-dropout assumptions, 'gsDesign2' offers piecewise constant enrollment, failure rates, and dropout rates for a stratified population. This package includes three methods for designs: average hazard ratio, weighted logrank tests in Yung and Liu (2019) doi:10.1111/biom.13196, and MaxCombo tests. Substantial flexibility on top of what is in the 'gsDesign' package is intended for selecting boundaries.

Changes in 1.2.0

New features

Harm boundaries are now supported in gs_design_ahr(), gs_power_ahr(), gs_design_npe(), and gs_power_npe() through the new harm, hpar, and test_harm arguments. Harm boundaries are available for group sequential designs with futility testing and are not supported for fixed designs (#640, thanks to @LittleBeannie, @yihui, and @keaven).
Harm boundaries are now included in summary(), gs_bound_summary(), as_gt(), and as_rtf() output, with controls for custom labels and bound display (#640, thanks to @LittleBeannie, @jdblischak, @yihui, and @keaven).

Documentation

A new vignette demonstrates how gs_design_ahr() reproduces gsDesign::gsSurv(method = "Schoenfeld") boundaries across test types, including designs with harm boundaries (#640, thanks to @LittleBeannie, @yihui, and @keaven).

From NEWS.md in the release

Install

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

install.packages("gsDesign2", 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("Merck/gsDesign2")

Development version from Merck/gsDesign2. 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-gsdesign2

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-gsDesign2

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# 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-gsDesign2

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

Additional issues

linux-arm64

CRAN check page ↗

Slowest check: 9.7 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-07-31
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK14 OK2026-04-22

Show 2 earlier changesHide 2 earlier changes

ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2.0

READMEYes · 1,845 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 1.2.0Citation fileNoWebsiteYes · pkgdown

The repository also keeps web-only articles.

Help pages: 40 (1 internal)includes a package overview page
Examples that run: 100%39 run in a plain check
Exported functions with examples: 100%
Documented parameters: 78%
Return-value docs: 100%
Help pages citing references: 5%

Vignettes (1)

Quick start for NPH sample size and power

How these are measured

Downloads

8.2K

CRAN downloads in the past year

Rank #4,351 · ~22/day · ~681/mo

Releases R versions

Daily download trend is not available in this view yet.

91230 days

2K90 days

8.2K1 year

Compare downloads with other packages →

Also on590 r2u8 autocran

How downloads are counted

Repository

merck/gsdesign2 ↗Organization: Merck

34Stars

11Forks

10Open issues

2Open PRs

19Releases

2,187Commits

27Commit identities

License file reads as GPL-3.0 · 2,187 commits · Last activity 2026-10-19 · 0% stars, 30d · Default branch at 1.2.0.9002, ahead of CRAN 1.2.0 (checked 2026-10-18)

Responsiveness

How these are sampled

PRs merged (all time): 96%
Median days to close, 50 most recently updated closed issues: 9
Median days to close, 50 most recently updated closed PRs: 1

Stars over time

2025-08-19 · 262026-08-23 · 34

How these are measured

PracticesBeta

14 development-tooling and community-health practices detected across 9 families in the upstream repository

Checks run against github.com/merck/gsdesign2 on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Governance and community (1)

Contributing guide

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-10-02 · The repository has a site deploy workflow

pkgdown site last built 2026-10-02

Coverage (1)

Coverage reporting (Codecov)

Show all practicesHide 5 practices

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Automation and maintenance (1)

Dependabot

Lint, format, editor (2)

lintrRStudio project

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v3 (2026-09-26)

AI coding toolsBeta

This repository shows signs of AI coding tools.

GitHub Copilotfirst seen 2025-10-29
Pull request: opened by its own account
Claude Codefirst seen 2026-05-05
Seen in the repository: .claude, .claude/skills
Named in .Rbuildignore: .claude, CLAUDE.md
Pull request it wrote: opened by a project member
Commits: at least 28 crediting it in the message

Models named in its commits

Claude Opus 4.622 commits · May to Aug 2026
Claude Opus 4.84 commits · Sep to Oct 2026
Claude Opus 51 commit · Oct 2026
Claude Sonnet 4.51 commit · Jul 2026

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

20 external dependencies (excludes base and recommended)

Installing gsDesign2 adds 71 packages (36 with compiled code, 68 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, data.table 5.7 MB.

Depends (1)

R >= 4.1.0

Imports (15)

corpcor data.table dplyr gsDesign gtmethodsmvtnorm npsurvSS r2rtfstatssurvivaltibble tidyrutilsRcpp

LinkingTo (1)

Rcpp

Suggests (8)

covr ggplot2 cowplot kableExtra knitr rmarkdown simtrial testit

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Suggested by 1

Suggests, most downloaded first

simtrial

How these are counted

Code & Tests

People & History

People (19)

Yujie Zhao

Author, Maintainer since 1.0.7 (2023)

Keaven Anderson

Author

John Blischak

Author · added in 1.1.0

Nan Xiao

Author

Yihui Xie

Author · added in 1.1.4

Author

Author

Contributor

Contributor · added in 1.1.1

Contributor

Contributor

Contributor

Contributor

Contributor · added in 1.1.2

Ping Yang

Contributor

Show 3 more contributorsHide 3 contributors

Hongtao Zhang

Contributor

Shiyu Zhang

Contributor · added in 1.1.4

Yalin Zhu

Contributor

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

Copyright holder

Releases (14)

Pick two releases to compare their code metrics.

1.2.0Latest
record
2026-07-30 · current release · diff ↗
1.1.9
record
2026-06-30 · diff ↗ ·
removed 1 export
gs_cp_npe

added 3 exports
gs_cp, gs_cp_simple, sequential_pval
R
R 4.6.0 released · 2026-04-24
1.1.8
record
2026-02-12 · diff ↗
1.1.7
record
2025-11-19 · diff ↗
1.1.6
record
2025-09-11 · diff ↗
1.1.5
record
2025-06-27 · diff ↗
1.1.4
record
2025-06-06 · diff ↗ ·
added 3 exports
gs_bound_summary, gs_cp_npe, text_summary
R
R 4.5.0 released · 2025-04-11
1.1.3
record
2024-11-15 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.1.2
record
2024-04-09 · diff ↗ ·
added 2 exports
ahr_blinded, gs_update_ahr
1.1.1
record
2024-02-09 · diff ↗ ·
added 1 export
as_rtf
1.1.0
record
2023-08-23 · diff ↗ ·
removed 4 exports
fixed_design, gridpts, h1, hupdate

added 11 exports
define_enroll_rate, define_fail_rate, fixed_design_ahr, fixed_design_fh, fixed_design_lf, fixed_design_maxcombo, fixed_design_mb, fixed_design_milestone, fixed_design_rd, fixed_design_rmst, pw_info
1.0.9
record
2023-06-20 · diff ↗
1.0.8
record
2023-05-01 · diff ↗

Show 3 earlier eventsHide 3 earlier events

R
R 4.3.0 released · 2023-04-21
1.0.7
record
2023-03-20
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2023-03-20
Total releases: 14 / 3 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.1.0
Download size: 468 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("gsDesign2")

Format

Zhao, Y., Merck & Co., Inc., Rahway, NJ, USA and its affiliates, Anderson, K., Blischak, J., Cui, Y., Fukuda, H., Li, C., Li, X. T., Shirazi, A., Wang, R., Wanjau, D., Xiao, N., Xie, Y., Yang, J., Yang, P., Zhang, H., Zhang, S., Zhang, Y., & Zhu, Y. (2026). gsDesign2: Group Sequential Design with Non-Constant Effect (Version 1.2.0) [Computer software]. https://doi.org/10.32614/CRAN.package.gsDesign2

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for gsDesign2 version 1.2.0 [Data set]. HJJB, LLC. Data release v2026-10-20. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-20, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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