R Observatory: Metrics for WebPower version 0.9.4

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

WebPower

0.9.4Package record

Basic and Advanced Statistical Power Analysis

1packages dependsuggested by 1

20.9Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Zhiyong ZhangCRAN page ↗Website ↗

This is a collection of tools for conducting both basic and advanced statistical power analysis including correlation, proportion, t-test, one-way ANOVA, two-way ANOVA, linear regression, logistic regression, Poisson regression, mediation analysis, longitudinal data analysis, structural equation modeling and multilevel modeling. It also serves as the engine for conducting power analysis online at https://webpower.psychstat.org.

Install

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

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

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

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-webpower

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-WebPower

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-WebPower

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: 2.9 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-05-12
WARNING12 OK, 1 WARNING2026-05-11
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.9.4

READMENoVignettesNoNEWSNoCitation fileNoWebsiteYes

Help pages: 48includes a package overview page
Examples that run: 52%22 run in a plain check · 13 only when donttest examples are enabled (R CMD check --as-cran) · 2 never run · 5 hold no code
Exported functions with examples: 92%
Documented parameters: 99%
Return-value docs: 90%
Help pages citing references: 79%

How these are measured

Downloads

20.9K

CRAN downloads in the past year

Rank #3,061 · ~57/day · ~1.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.5K30 days

4.2K90 days

20.9K1 year

Compare downloads with other packages →

Also on171 r2u3 autocran

How downloads are counted

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing WebPower adds 29 packages (19 with compiled code, 18 MB of source tarballs). Heaviest: lme4 4.1 MB, nloptr 2.1 MB, Rcpp 1.8 MB.

Depends (8)

R >= 3.2.5MASSgrDevicesgraphicslme4 lavaanparallelPearsonDS

Imports (2)

dplyrstats

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Suggested by 1

Depends, Imports or LinkingTo, most downloaded first

essentialstools

Suggests, most downloaded first

R4VN

How these are counted

Code & Tests

Datasets

People & History

People (5)

Zhiyong Zhang

Author, Maintainer since 0.5 (2018)

Yujiao Mai

Author

Conor McNamara

Contributor · added in 0.9.0

Ziqian Xu

Contributor · added in 0.9.0

Miao Yang

Contributor

Releases (10)

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
0.9.4Latest
record
2023-10-13 · current release · diff ↗
0.9.3
record
2023-05-18 · diff ↗ ·
added 6 exports
estCRT2arm, estCRT3arm, estMRT2arm, estMRT3arm, wp.mmrm, wp.mmrm.ar1
0.9.2
record
2023-05-10 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.9.0
record
2023-04-20 · diff ↗ ·
added 5 exports
wp.modmed.m7, wp.modmed.m8, wp.modmed.m14, wp.modmed.m15, wp.modmed.m58
0.8.7
record
2023-01-12 · diff ↗
unarchivedReturned to CRAN
2022-08-15
0.8.6
record
2022-08-15 · diff ↗
archivedRemoved from CRAN
2022-07-19
check issues were not corrected in time
0.7
record
2022-05-21 · diff ↗ ·
added 2 exports
wp.mc.chisq.diff, sem.effect.size
R
R 4.2.0 released · 2022-04-22
0.6
record
2021-05-18 · diff ↗
R
R 4.1.0 released · 2021-05-18

Show 6 earlier eventsHide 6 earlier events

R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.5.2
record
2018-11-29 · diff ↗
R
R 3.5.0 released · 2018-04-23
0.5
record
2018-04-16
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2018-04-16
Total releases: 10 / 8 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.2.5
Bundled data: 0.5 KB / 1 file
Download size: 64 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("WebPower")

Format

Zhang, Z., Mai, Y., McNamara, C., Xu, Z., & Yang, M. (2023). WebPower: Basic and Advanced Statistical Power Analysis (Version 0.9.4) [Computer software]. https://doi.org/10.32614/CRAN.package.WebPower

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 WebPower version 0.9.4 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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