R Observatory: Metrics for mediation version 4.5.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

mediation

4.5.1Package record

Causal Mediation Analysis

6packages dependsuggested by 12

287.9Kdownloads / year

0.1%test coverage

11/13flavors OK

Overview

About

Maintained by Teppei YamamotoCRAN page ↗Website ↗

We implement parametric and non parametric mediation analysis. This package performs the methods and suggestions in Imai, Keele and Yamamoto (2010) DOI:10.1214/10-STS321, Imai, Keele and Tingley (2010) DOI:10.1037/a0020761, Imai, Tingley and Yamamoto (2013) DOI:10.1111/j.1467-985X.2012.01032.x, and Imai and Yamamoto (2013) DOI:10.1093/pan/mps040. In addition to the estimation of causal mediation effects, the software also allows researchers to conduct sensitivity analysis for certain parametric models.

Install

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

install.packages("mediation", 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-mediation

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-mediation

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-mediation

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Teppei Yamamoto <tyamam@waseda.jp>’

Found the following (possibly) invalid file URI:
  URI: dtingley@gov.harvard.edu
    From: inst/doc/mediation-old.pdf

CRAN check page ↗

Slowest check: 7.7 min · r-oldrel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTE2026-07-23
ERROR11 OK, 1 NOTE, 1 ERROR2026-07-07
NOTE11 OK, 2 NOTE2026-06-09
ERROR11 OK, 1 NOTE, 1 ERROR2026-06-07
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 4.5.1

READMEYes · 60 wordsVignettesYes · 2 · dynamicNEWSYes · 67% structured · does not mention 4.5.1Citation fileYes · cites a publicationWebsiteYes

Help pages: 33includes a package overview page
Examples that run: 63%12 run in a plain check · 6 never run · 1 hold no code
Exported functions with examples: 100%
Documented parameters: 99%
Return-value docs: 100%
Help pages citing references: 76%

Also includes 1 demo script (run with demo())

Vignettes (2)

mediation PDF
mediation-old PDF

How these are measured

Downloads

287.9K

CRAN downloads in the past year

Rank #802 · ~789/day · ~24K/mo

Releases R versions

Daily download trend is not available in this view yet.

18.6K30 days

57.5K90 days

287.9K1 year

Compare downloads with other packages →

Also on775 r2u6 autocran2.7K conda_forge204 c2d4u

How downloads are counted

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Installing mediation adds 63 packages (35 with compiled code, 67 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, data.table 5.7 MB.

Depends (5)

R >= 2.15.1MASSMatrixmvtnorm sandwich

Imports (8)

lpSolve Hmisc lme4statsgraphicsgrDevicesutilsboot

LinkingTo (0)

none

Suggests (8)

mgcvquantreg VGAM SuppDistssurvivalparalleltestthat speedglm

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

6direct

3indirect

Depends 1 · Imports 5

Suggested by 12

Show all 18 packagesHide all 18 packages

Depends, Imports or LinkingTo, most downloaded first

bruceR exploratory EMAS CEDMr mediationsens maczic

Suggests, most downloaded first

broom emmeans datawizard bayestestR parameters broom.mixed WRS2 brainGraph pctax JSmediation mellio iMediate

How these are counted

Code & Tests

Datasets

People & History

People (7)

Teppei Yamamoto

Author, Maintainer since 4.1.2 (2012)

Kentaro Hirose

Author · added in 4.2.1

Author

Author

Author

Author · added in 4.5.0

Weihuang Wong

Author · added in 4.5.0

Previously maintained by Dustin Tingley (3.0 to 4.1) and Luke Keele (1.0 to 2.1).

Releases (28)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
4.5.1Latest
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2025-06-08 · current release · 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
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
4.5.0
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2019-10-09 · diff ↗ ·
removed 17 exports
summary.mediate, plot.mediate, summary.mediate.order, plot.mediate.order, summary.mediate.mer, plot.mediate.mer, summary.medsens, plot.medsens, summary.mediations, plot.mediations, summary.mediations.order, plot.mediations.order, summary.multimed, plot.multimed, summary.mediate.design, summary.ivmediate, plot.ivmediate

added 1 export
mediate_tsls
R
R 3.6.0 released · 2019-04-26
4.4.7
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2019-03-17 · diff ↗
R
R 3.5.0 released · 2018-04-23
4.4.6
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2017-07-12 · diff ↗
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
4.4.5
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2015-07-18 · diff ↗

Show 33 earlier eventsHide 33 earlier events

R
R 3.2.0 released · 2015-04-16
4.4.4
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2015-03-03 · diff ↗
4.4.3
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2014-11-23 · diff ↗
4.4.2
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2014-08-27 · diff ↗
4.4.1
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2014-08-13 · diff ↗
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R 3.1.0 released · 2014-04-10
4.4
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2013-12-09 · diff ↗
4.3.1
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2013-10-17 · diff ↗
4.3
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2013-10-14 · diff ↗ ·
added 3 exports
ivmediate, summary.ivmediate, plot.ivmediate
4.2.4
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2013-09-26 · diff ↗
4.2.3
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2013-08-26 · diff ↗ ·
added 3 exports
test.TMint, test.modmed, amelidiate
4.2.2
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2013-04-18 · diff ↗
R
R 3.0.0 released · 2013-04-03
4.2.1
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2013-03-04 · diff ↗ ·
added 2 exports
summary.mediate.mer, plot.mediate.mer
4.2
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2012-12-18 · diff ↗
4.1.2
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2012-08-24 · diff ↗
4.1
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2012-06-03 · diff ↗
4.0.1
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2012-04-20 · diff ↗
R
R 2.15.0 released · 2012-03-30
4.0
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2012-03-20 · diff ↗ ·
added 8 exports
multimed, summary.multimed, plot.multimed, mediate.sed, mediate.pd, mediate.ped, mediate.ced, summary.mediate.design
R
R 2.14.0 released · 2011-10-31
3.1.2
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2011-09-20 · diff ↗
3.1.1
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2011-09-19 · diff ↗
3.1
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2011-08-21 · diff ↗
3.0
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2011-05-03 · diff ↗ ·
added 8 exports
plot.mediate, summary.mediate.order, plot.mediate.order, mediations, summary.mediations, plot.mediations, summary.mediations.order, plot.mediations.order
R
R 2.13.0 released · 2011-04-13
R
R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
R
R 2.10.0 released · 2009-10-26
2.1
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2009-09-18 · diff ↗
2.0
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2009-07-18 · diff ↗
1.0
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2009-06-14
R
R 2.9.0 released · 2009-04-17

Package metadata

First published: 2009-06-14
Total releases: 28 / 17 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 2.15.1
Bundled data: 67 KB / 6 files
Download size: 1.2 MB

Appears in task views

Causal Inference Epidemiology Psychometric Models and Methods

Cite

Cite this package

Run in R for the authors' entry:

citation("mediation")

The package provides a citation file, so citation() returns the authors' own entry.

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 mediation version 4.5.1 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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