R Observatory: Metrics for WMWssp version 0.5.3

Balamuta, James Joseph

WMWssp

0.5.3

Wilcoxon-Mann-Whitney Sample Size Planning

0packages depend

2.4Kdownloads / year

95.2%test coverage

13/13checks pass

Overview

About

Maintained by Martin HappFirst published 2018-02-196 releasesCRAN page ↗GitHub ↗

Calculates the minimal sample size for the Wilcoxon-Mann-Whitney test that is needed for a given power and two sided type I error rate. The method works for metric data with and without ties, count data, ordered categorical data, and even dichotomous data. But data is needed for the reference group to generate synthetic data for the treatment group based on a relevant effect. See Happ et al. (2019, doi:10.1002/sim.7983) for details.

Install

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

install.packages("WMWssp", 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("happma/WMWssp")

Development version from happma/WMWssp. 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-wmwssp

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

# 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-WMWssp

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-WMWssp

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

Health

CRAN checks

13OK

Slowest check: 45 s · r-release-windows-x86_64

Code health

Yes

Tests · ratio 0.15

95.2%

Coverage · measured lines

100%

Documentation · exports

0

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 242 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 100%

Downloads

2.4K

CRAN downloads in the past year

Rank #14,576 · ~7/day · ~203/mo

Releases R versions

Daily download trend is not available in this view yet.

25930 days

69790 days

2.4K1 year

Compare downloads with other packages →

Also on91 r2u2 autocran

Repository

GitHub ↗ happma/wmwssp

3Stars

0Forks

0Open issues

0Open PRs

0Releases

32Commits

4Contributors

rsample-size-calculationoptimal-designwilcoxon-mann-whitney-testnonparametric-statisticrstats

32 commits · Last activity 2025-02-18 · 0% stars, 30d

Stars over time

2020-07-27 · 22026-07-07 · 3

Repository practices

Upstream repositoryBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/happma/wmwssp on 2026-08-03.

Continuous integration (1)

GitHub Actions

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

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (1)

R >= 3.4.0

Imports (0)

none

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (4)

Maintainer (1)

Martin Happ

Author, Maintainer · added in 0.5.3

Authors (4)

Martin Happ

Author, Maintainer · added in 0.5.3

Arne C. Bathke

Author · added in 0.5.3

Edgar Brunner

Author · added in 0.5.3

Frank Konietschke

Author · added in 0.5.3

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.5.3Latest
2025-02-19 · current release · diff ↗
unarchivedReturned to CRAN
2025-02-19
archivedRemoved from CRAN
2024-09-30
email to the maintainer is undeliverable
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.4.0
2019-07-09 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.3.7
2019-03-11 · diff ↗
0.3.6
2019-03-07 · diff ↗
0.3.4
2018-07-08 · diff ↗
R
R 3.5.0 released · 2018-04-23

Show 2 earlier events

0.3.2
2018-02-19
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2018-02-19
Total releases: 6 / 8 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.4.0
Download size: 7.9 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("WMWssp")

Format

Happ, M., Bathke, A. C., Brunner, E., & Konietschke, F. (2025). WMWssp: Wilcoxon-Mann-Whitney Sample Size Planning (Version 0.5.3) [Computer software]. https://doi.org/10.32614/CRAN.package.WMWssp

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 WMWssp version 0.5.3 [Data set]. HJJB, LLC. Data release v2026-08-07. https://r-observatory.thecoatlessprofessor.com/packages/WMWssp

From data release v2026-08-07, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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