pwrss

1.2.0

Statistical Power, Sample Size, and Detectable Effect Calculations

2packages depend

20.1Kdownloads / year

85.3%test coverage

13/13checks pass

Overview

About

Maintained by Metin BulusFirst published 2022-11-096 releasesCRAN page ↗GitHub ↗

Flexible and comprehensive functions for statistical power, minimum required sample size, and minimum detectable effect calculations across a wide range of commonly used hypothesis tests in psychological, biomedical, and social sciences.

Install

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

install.packages("pwrss", 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("metinbulus/pwrss")

Development version from metinbulus/pwrss. 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-pwrss

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-pwrss

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-pwrss

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

Health

CRAN checks

13OK

Slowest check: 8.4 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.70

85.3%

Coverage · measured lines

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

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 99%
Return-value docs: 100%
References docs: 69%

Downloads

20.1K

CRAN downloads in the past year

Rank #3,158 · ~55/day · ~1.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.3K30 days

4.1K90 days

20.1K1 year

Compare downloads with other packages →

Also on185 r2u29 autocran

Repository

GitHub ↗ metinbulus/pwrss

2Stars

1Forks

2Open issues

0Open PRs

0Releases

289Commits

2Contributors

License GPL-3.0 · 289 commits · Last activity 2026-07-10 · 0% stars, 30d

Stars over time

2026-02-09 · 12026-07-07 · 2

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/metinbulus/pwrss on 2026-07-30.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

Research and citation (1)

codemeta.json

Lint, format, editor (2)

lintrRStudio project

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

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (0)

none

LinkingTo (0)

none

Suggests (4)

knitr sadists rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

alphaN carts

Code & Tests

People & History

People (2)

Maintainer (1)

Metin Bulus

Author, Maintainer, Copyright holder

Authors (2)

Metin Bulus

Author, Maintainer, Copyright holder

Sebastian Jentschke

Author, Copyright holder · added in 1.0.0

Metin Bulus

Author, Maintainer, Copyright holder

Sebastian Jentschke

Author, Copyright holder · added in 1.0.0

Package Timeline

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

1.2.0Latest
2026-06-23 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
1.0.0
2025-09-16 · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.3.1
2023-04-11 · diff ↗
0.3.0
2023-03-12 · diff ↗
0.2.0
2022-12-14 · diff ↗
0.1.0
2022-11-09
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2022-11-09
Total releases: 6 / 4 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Download size: 1.1 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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