CRAN requires the check problems on this package to be fixed before 2026-08-21 or it will be archived.

simr

1.0.9

Power Analysis for Generalised Linear Mixed Models by Simulation

3packages depend

54Kdownloads / year

84.9%test coverage

4/13checks pass

Overview

About

Maintained by Peter GreenFirst published 2015-11-0110 releasesCRAN page ↗GitHub ↗

Calculate power for generalised linear mixed models, using simulation. Designed to work with models fit using the 'lme4' package. Described in Green and MacLeod, 2016 doi:10.1111/2041-210X.12504.

Install

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

install.packages("simr", 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("pitakakariki/simr")

Development version from pitakakariki/simr. 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-simr

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-simr

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-simr

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

Health

CRAN checks

9ERROR4OK

Failing flavors

ERROR r-devel-linux-x86_64-debian-clang
ERROR r-devel-linux-x86_64-debian-gcc
ERROR r-devel-linux-x86_64-fedora-clang
ERROR r-devel-linux-x86_64-fedora-gcc
ERROR r-devel-windows-x86_64
ERROR r-oldrel-windows-x86_64
ERROR r-patched-linux-x86_64
ERROR r-release-linux-x86_64
ERROR r-release-windows-x86_64

Slowest check: 4.9 min · r-release-macos-x86_64

Code health

Yes

Tests · ratio 0.22

84.9%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

ERROR2026-07-17
10 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-07-16
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
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

READMEYes · 65 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 88%
Documented parameters: 98%
Return-value docs: 58%
References docs: 7%

Downloads

54K

CRAN downloads in the past year

Rank #2,062 · ~148/day · ~4.5K/mo

Releases R versions

Daily download trend is not available in this view yet.

3.4K30 days

11.7K90 days

54K1 year

Compare downloads with other packages →

Also on183 r2u15 autocran51 c2d4u

Repository

GitHub ↗ pitakakariki/simr

79Stars

20Forks

214Open issues

6Open PRs

14Releases

483Commits

9Contributors

483 commits · Last activity 2026-07-12 · +2.6% stars, 30d

Stars over time

2025-06-23 · 732026-07-12 · 78

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/pitakakariki/simr on 2026-07-19.

Continuous integration (2)

GitHub ActionsAppVeyor

Lint, format, editor (1)

RStudio project

Governance and community (1)

Issue templates

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

Dependencies

Declared dependencies

14 external dependencies (excludes base and recommended)

Depends (2)

R >= 4.1.0lme4

Imports (15)

binom cargraphicsgrDevicesiterators lmerTest (>= 3.0-0)methodspbkrtest plotrix plyr reformulas RLRsim stringrstatsutils

LinkingTo (0)

none

Suggests (3)

testthat knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

0indirect

RMeDPower2 mlpwr simDAG

Code & Tests

Datasets

People & History

People (3)

Maintainer (1)

Peter Green

Author, Maintainer

Authors (2)

Peter Green

Author, Maintainer

Catriona MacLeod

Author

Contributors (1)

Phillip Alday

Contributor · added in 1.0.6

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.0.9Latest
2026-03-29 · current release · diff ↗
1.0.8
2025-08-18 · 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
1.0.7
2023-04-13 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.0.6
2022-03-08 · diff ↗
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
1.0.5
2019-01-29 · diff ↗
1.0.4
2018-04-30 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.0.3
2017-09-29 · diff ↗

Show 6 earlier events

R
R 3.4.0 released · 2017-04-21
1.0.2
2016-11-19 · diff ↗
R
R 3.3.0 released · 2016-05-03
1.0.1
2016-01-16 · diff ↗
1.0.0
2015-11-01
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-11-01
Total releases: 10 / 11 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 4.1.0
Bundled data: 0.5 KB / 1 file
Download size: 49 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Mixed, Multilevel, and Hierarchical Models in R

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