lavaan

Overview

About

Maintained by Yves RosseelFirst published 2012-09-0837 releasesCRAN page ↗GitHub ↗

Fit a variety of latent variable models, including confirmatory factor analysis, structural equation modeling and latent growth curve models.

Install

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

install.packages("lavaan", 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("yrosseel/lavaan")

Development version from yrosseel/lavaan. 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-lavaan

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-lavaan

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-lavaan

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

Health

CRAN checks

13OK

Slowest check: 14.7 min · r-devel-linux-x86_64-fedora-clang

Code health

None

Tests · ratio 0.00

not tracked

Coverage

99%

Documentation · exports

10

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 211 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 95%
Documented parameters: 95%
Return-value docs: 64%
References docs: 40%

Downloads

966.9K

CRAN downloads in the past year

Rank #381 · ~2.6K/day · ~80.6K/mo

Releases R versions

Daily download trend is not available in this view yet.

75.1K30 days

250.6K90 days

966.9K1 year

Compare downloads with other packages →

Also on6.3K r2u266 autocran7.7K conda_forge220 c2d4u

Repository

GitHub ↗ yrosseel/lavaan

507Stars

123Forks

6Open issues

0Open PRs

0Releases

3,124Commits

36Contributors

structural-equation-modelinglatent-variablesfactor-analysisgrowth-curve-modelspath-analysismultilevel-modelsmultivariate-analysispsychometrics

License GPL-3.0 · 3,124 commits · Last activity 2026-07-21 · +0.6% stars, 30d

Stars over time

2025-07-20 · 4672026-07-19 · 507

Repository practices

Upstream repositoryBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/yrosseel/lavaan on 2026-07-19.

Continuous integration (1)

GitHub Actions

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.4

Imports (10)

methodsstats4statsutilsgraphicsMASSmnormt pbivnorm numDeriv quadprog

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

210direct

82indirect

and 162 more packages.

Code & Tests

Code Composition

R 132,424 (93%)Rd 9,378 (7%)

Code characteristics

Object systems

S328S4 class6S4 generic3S4 method19

Cyclomatic complexity: 5.0 median / 310 max

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

1418 181 exported

Complexity

11.9 avg / 310 max

Call network

1418 nodes / 4028 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

Per-function coverage is not measured for this package yet.

Datasets

Bundled datasets · 4

Name	Class	Rows × Cols	Also ships in
Demo.growth	data.frame	400 × 10	–
Demo.twolevel	data.frame	2,500 × 12	–
HolzingerSwineford1939	data.frame	301 × 15	in 2 packages
PoliticalDemocracy	data.frame	75 × 11	in 5 packages

People & History

People (17)

Maintainer (1)

Yves Rosseel

Author, Maintainer

Authors (3)

Yves Rosseel

Author, Maintainer

Luc De Wilde

Author

Terrence D. Jorgensen

Author

Contributors (14)

Mariska Barendse

Contributor · added in 0.5-15

Jarrett Byrnes

Contributor

Franz Classe

Contributor · added in 0.6-18

Han Du

Contributor · added in 0.6-8

Michael Hallquist

Contributor · added in 0.5-10

Haziq Jamil

Contributor · added in 0.6-17

Myrsini Katsikatsou

Contributor · added in 0.5-10

Ed Merkle

Contributor

Show 6 more contributors

Daniel Oberski

Contributor

Mijke Rhemtulla

Contributor · added in 0.5-10

Nicholas Rockwood

Contributor

Victoria Savalei

Contributor

Florian Scharf

Contributor · added in 0.6-4

Leonard Vanbrabant

Contributor

Listed in earlier versions (5)

Michael Chow

no longer listed · 0.5-23.1097 to 0.6-3

Terrence Jorgensen

no longer listed · 0.5-23.1097

Jorgensen

no longer listed · 0.6-1 to 0.7-2

Rockwood

no longer listed · 0.6-7 to 0.7-2

De Wilde

no longer listed · 0.6-17 to 0.7-2

Package Timeline

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

0.7-2Latest
2026-07-17 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
0.6-21
2025-12-21 · diff ↗
0.6-20
2025-09-21 · diff ↗
R
R 4.5.0 released · 2025-04-11
0.6-19
2024-09-26 · diff ↗
0.6-18
2024-06-07 · diff ↗
R
R 4.4.0 released · 2024-04-24
0.6-17
2023-12-20 · diff ↗
0.6-16
2023-07-20 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.6-15
2023-03-14 · diff ↗
0.6-14
2023-02-09 · diff ↗
0.6-13
2023-01-09 · diff ↗
0.6-12
2022-07-04 · diff ↗
R
R 4.2.0 released · 2022-04-22

Show 37 earlier events

0.6-11
2022-03-31 · diff ↗
0.6-10
2022-01-25 · diff ↗
0.6-9
2021-06-27 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.6-8
2021-03-10 · diff ↗
0.6-7
2020-07-31 · diff ↗
0.6-6
2020-05-13 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.6-5
2019-08-28 · diff ↗
0.6-4
2019-07-03 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.6-3
2018-09-23 · diff ↗
0.6-2
2018-07-16 · diff ↗
0.6-1
2018-05-22 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
0.5-23.1097
2017-02-24 · diff ↗
0.5-22
2016-09-24 · diff ↗
0.5-21
2016-09-07 · diff ↗
R
R 3.3.0 released · 2016-05-03
0.5-20
2015-11-07 · diff ↗
0.5-19
2015-10-03 · diff ↗
R
R 3.2.0 released · 2015-04-16
0.5-18
2015-04-06 · diff ↗
0.5-17
2014-09-30 · diff ↗
R
R 3.1.0 released · 2014-04-10
0.5-16
2014-03-07 · diff ↗
0.5-15
2013-11-15 · diff ↗
0.5-14
2013-07-21 · diff ↗
0.5-13
2013-05-11 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.5-12
2013-03-08 · diff ↗
0.5-11
2012-12-19 · diff ↗
0.5-10
2012-10-25 · diff ↗
0.5-9
2012-09-08
removedRemoved from CRAN
2012-09-07
uncredited copying of code contrary to its licence
R
R 2.15.0 released · 2012-03-30

Package metadata

First published: 2012-09-08
Total releases: 37 / 14 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.4
Bundled data: 213 KB / 4 files
Download size: 1.0 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Econometrics Missing Data Mixed, Multilevel, and Hierarchical Models in R Psychometric Models and Methods