R Observatory: Metrics for medmod version 1.2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

medmod

1.2.0Package record

Simple Mediation and Moderation Analysis

0packages depend

761downloads / year

97.6%test coverage

13/13flavors OK

Overview

About

Maintained by Ravi SelkerCRAN page ↗GitHub ↗Issues ↗

This toolbox allows you to do simple mediation and moderation analysis. Models are estimated with the 'lavaan' package by Rosseel (2012) doi:10.18637/jss.v048.i02; standard errors for the mediation estimates are computed with the delta method following Sobel (1982) doi:10.2307/270723 or by bootstrapping. It is also available as a module for 'jamovi' (see https://www.jamovi.org for more information). You can find an in depth tutorial on the 'lavaan' model syntax used for this package on https://lavaan.ugent.be/tutorial/index.html.

Changes in 1.2.0

New features

Both analyses can now display a path diagram of the fitted model, with optional path labels, coefficient estimates and significance stars. The moderation diagram optionally draws the moderator's main-effect path.
The moderation estimates table can now display coefficient labels matching the simple slope parametrisation.
Model estimates are cached, so changing display options no longer refits the model (particularly noticeable with bootstrap standard errors).
Added two example datasets to jamovi's data library, one for mediation and one for moderation.

Bug fixes

Results now correctly refresh when the confidence level or the number of bootstrap samples changes.

Show all changes in 1.2.0Hide the rest of the changes in 1.2.0

The percent mediation column now uses the same estimates as the other columns (no change in results for these models, where the two coincide).
Replaced deprecated ggplot2 idioms (aes_string(), size for line widths).
Analyses now give an informative error when an expected model term is missing from the estimates.

From NEWS.md in the release

Install

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

install.packages("medmod", 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("raviselker/medmod")

Development version from raviselker/medmod. 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-medmod

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-medmod

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-medmod

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: 1.6 min · r-oldrel-macos-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK7 OK2026-07-17

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2.0

README· In the repository, left out of the releaseVignettesNoNEWSYes · 100% structured · mentions 1.2.0Citation fileNoWebsitenot declared in DESCRIPTION

Description cites a JSS article

Help pages: 9 (6 internal)includes a package overview page
Examples that run: 100%2 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

761

CRAN downloads in the past year

Rank #20,260 · ~2/day · ~63/mo

Releases R versions

Daily download trend is not available in this view yet.

24930 days

66190 days

7611 year

Compare downloads with other packages →

Also on14 r2u2 autocran

How downloads are counted

Repository

raviselker/medmod ↗Account: raviselker

6Stars

6Forks

2Open issues

0Open PRs

1Releases

49Commits

4Commit identities

jamovimediationmoderation

49 commits · Last activity 2026-07-15

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 633
Median days to close, 50 most recently updated closed PRs: 1

Forks over time

2026-07-16 · 62026-10-06 · 6

How these are measured

PracticesBeta

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

Checks run against github.com/raviselker/medmod on 2026-10-25.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Reproducibility and dev environment (1)

renv

CRAN release process (1)

cran-comments.md

Lint, format, editor (3)

Lint workflowAirRStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2026-07-08
Seen in the repository: CLAUDE.md
Named in .Rbuildignore: CLAUDE.md
Pull request it wrote: opened by a project member

How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Installing medmod adds 25 packages (12 with compiled code, 16 MB of source tarballs). Heaviest: ggplot2 6.0 MB, lavaan 1.6 MB, isoband 1.5 MB.

Depends (1)

R >= 3.2

Imports (5)

jmvcore R6 lavaan ggplot2 rlang

LinkingTo (0)

none

Suggests (1)

testthat

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)

Ravi Selker

Author, Maintainer since 1.0.0 (2017)

Releases (2)

Pick two releases to compare their code metrics.

unarchivedReturned to CRAN
2026-07-16
1.2.0Latest
record
2026-07-16 · current release · diff ↗
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
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
archivedRemoved from CRAN
2022-04-06
check issues were not corrected in time
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
1.0.0
record
2017-09-12
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2017-09-12
Total releases: 2 / 9 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.2
Download size: 18 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("medmod")

Format

Selker, R. (2026). medmod: Simple Mediation and Moderation Analysis (Version 1.2.0) [Computer software]. https://doi.org/10.32614/CRAN.package.medmod

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 medmod version 1.2.0 [Data set]. HJJB, LLC. Data release v2026-10-26. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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