InteractionPoweR

0.2.4

Power Analyses for Interaction Effects in Cross-Sectional Regressions

1packages depend

5.6Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by David BarangerFirst published 2022-08-245 releasesCRAN page ↗GitHub ↗

Power analysis for regression models which test the interaction of two or three independent variables on a single dependent variable. Includes options for correlated interacting variables and specifying variable reliability. Two-way interactions can include continuous, binary, or ordinal variables. Power analyses can be done either analytically or via simulation. Includes tools for simulating single data sets and visualizing power analysis results. The primary functions are power_interaction_r2() and power_interaction() for two-way interactions, and power_interaction_3way_r2() for three-way interactions. The function run_pos_power_search() provides a stability analysis for two-way interactions. Please cite as: Baranger DAA, Finsaas MC, Goldstein BL, Vize CE, Lynam DR, Olino TM (2023). "Tutorial: Power analyses for interaction effects in cross-sectional regressions." doi:10.1177/25152459231187531. If you use the stability analyses, please cite: Castillo A, Miller JD, Vize C, Baranger DAA, Lynam DR. "When Do Interaction/Moderation Effects Stabilize in Linear Regression?"doi:10.1177/25152459251407860.

Install

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

install.packages("InteractionPoweR", 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("dbaranger/InteractionPoweR")

Development version from dbaranger/InteractionPoweR. 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-interactionpower

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-InteractionPoweR

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-InteractionPoweR

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

Health

CRAN checks

13OK

Slowest check: 31.7 min · r-release-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-28
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 576 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 88%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

5.6K

CRAN downloads in the past year

Rank #5,665 · ~15/day · ~468/mo

Releases R versions

Daily download trend is not available in this view yet.

36230 days

1.6K90 days

5.6K1 year

Compare downloads with other packages →

Also on107 r2u1 autocran

Repository

GitHub ↗ dbaranger/interactionpower

23Stars

2Forks

0Open issues

0Open PRs

0Releases

60Commits

1Contributors

License GPL-3.0 · 60 commits · Last activity 2026-03-23

Stars over time

2025-05-11 · 222026-07-07 · 23

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/dbaranger/interactionpower on 2026-07-30.

CRAN release process (2)

cran-comments.mdrevdep/

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (12)

dplyrparalleldoParallel foreach ggplot2 polynom chngpt rlang tidyrstatsggbeeswarmMatrix

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

simpr.interaction

Code & Tests

Datasets

People & History

People (7)

Maintainer (1)

David Baranger

Author, Maintainer

Authors (2)

David Baranger

Author, Maintainer

Andrew Castillo

Author · added in 0.2.4

Contributors (5)

Contributor

Contributor

Contributor

Contributor

Contributor

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.2.4Latest
2026-03-24 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
0.2.2
2024-07-09 · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.2.1
2023-04-18 · diff ↗
0.2.0
2022-10-20 · diff ↗
0.1.1
2022-08-24
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2022-08-24
Total releases: 5 / 4 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Bundled data: 0.4 KB / 1 file
Download size: 272 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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