R Observatory: Metrics for GroupSeq version 1.4.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

GroupSeq

1.4.3Package record

Group Sequential Design Probabilities - With Graphical User Interface

0packages depend

3.5Kdownloads / year

0.0%test coverage

13/13flavors OK

Overview

About

Maintained by Roman PahlCRAN page ↗GitHub ↗Website ↗Issues ↗

Computes probabilities related to group sequential designs for normally distributed test statistics. Enables to derive critical boundaries, power, drift, and confidence intervals of such designs. Supports the alpha spending approach by Lan-DeMets (1994) doi:10.1002/sim.4780131308.

Install

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

install.packages("GroupSeq", 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("rpahl/GroupSeq")

Development version from rpahl/GroupSeq. 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-groupseq

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-GroupSeq

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-GroupSeq

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

CRAN check page ↗

Slowest check: 2.1 min · r-release-macos-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.4.3

READMEYes · 269 wordsVignettesYes · 6 · dynamicNEWSYes · 100% structured · does not mention 1.4.3Citation fileNoWebsiteYes · pkgdown

Help pages: 1
Examples that run: 100%1 run in a plain check
Exported functions with examples: 100%
Documented parameters: not tracked
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (6)

How these are measured

Downloads

3.5K

CRAN downloads in the past year

Rank #10,905 · ~10/day · ~296/mo

Releases R versions

Daily download trend is not available in this view yet.

37730 days

94990 days

3.5K1 year

Compare downloads with other packages →

Also on97 r2u8 autocran155 c2d4u

How downloads are counted

Repository

rpahl/groupseq ↗Account: rpahl

1Stars

1Forks

1Open issues

0Open PRs

1Releases

175Commits

2Commit identities

175 commits · Last activity 2025-01-03 · 0% stars, 30d · Default branch at 1.4.4, ahead of CRAN 1.4.3 (checked 2026-10-11)

Responsiveness

How these are sampled

PRs merged (all time): 79%
Median days to close, 50 most recently updated closed issues: 4
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2020-01-23 · 12026-07-07 · 1

How these are measured

PracticesBeta

6 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/rpahl/groupseq on 2026-10-11.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Windows

Docs source (3)

README.Rmdpkgdown

GitHub Pages site last deployed 2025-01-03

Coverage (1)

Coverage reporting

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

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing GroupSeq adds 2 packages (1 with compiled code, 2.1 MB of source tarballs). Heaviest: tcltk2 1.1 MB, mvtnorm 1.0 MB.

Depends (0)

none

Imports (3)

tcltktcltk2 mvtnorm

LinkingTo (0)

none

Suggests (5)

knitr tinytest rmarkdown ggplot2 gridExtra

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Roman Pahl

Author, Maintainer since 1.0 (2006)

Releases (11)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.4.3Latest
record
2024-02-03 · current release · diff ↗
R
R 4.3.0 released · 2023-04-21
unarchivedReturned to CRAN
2022-12-12
1.4.2
record
2022-12-12 · diff ↗
archivedRemoved from CRAN
2022-10-03
requires archived package 'container'
R
R 4.2.0 released · 2022-04-22
1.4.0
record
2022-02-06 · diff ↗ ·
removed 1 export
groupseq

added 1 export
start_gui
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
1.3.5
record
2018-04-11 · diff ↗
R
R 3.4.0 released · 2017-04-21

Show 25 earlier eventsHide 25 earlier events

1.3.4
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2017-02-03 · diff ↗
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R 3.3.0 released · 2016-05-03
1.3.3
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2015-07-08 · diff ↗
R
R 3.2.0 released · 2015-04-16
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R 3.1.0 released · 2014-04-10
1.3.2
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2014-01-10 · diff ↗
R
R 3.0.0 released · 2013-04-03
R
R 2.15.0 released · 2012-03-30
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R 2.14.0 released · 2011-10-31
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R 2.13.0 released · 2011-04-13
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R 2.12.0 released · 2010-10-15
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R 2.11.0 released · 2010-04-22
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R 2.10.0 released · 2009-10-26
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R 2.9.0 released · 2009-04-17
1.3.1
record
2009-02-24 · diff ↗
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R 2.8.0 released · 2008-10-20
R
R 2.7.0 released · 2008-04-22
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R 2.6.0 released · 2007-10-03
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R 2.5.0 released · 2007-04-24
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R 2.4.0 released · 2006-10-03
1.3
record
2006-05-22 · diff ↗
R
R 2.3.0 released · 2006-04-24
1.1
record
2006-04-20 · diff ↗ ·
added 1 export
groupseq
1.0
record
2006-02-08
R
R 2.2.0 released · 2005-10-06

Package metadata

First published: 2006-02-08
Total releases: 11 / 20 yrs
License: GPL-3 OSI
Download size: 3.0 MB

Appears in task views

Clinical Trial Design, Monitoring, Analysis and Reporting Design of Experiments (DoE) & Analysis of Experimental Data

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("GroupSeq")

Format

Pahl, R. (2024). GroupSeq: Group Sequential Design Probabilities - With Graphical User Interface (Version 1.4.3) [Computer software]. https://doi.org/10.32614/CRAN.package.GroupSeq

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 GroupSeq version 1.4.3 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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