R Observatory: Metrics for WeMix version 4.0.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

WeMix

4.0.3Package record

Weighted Mixed-Effects Models Using Multilevel Pseudo Maximum Likelihood Estimation

2packages dependsuggested by 3

10.4Kdownloads / year

85.6%test coverage

8/13flavors OK

Overview

About

Maintained by Paul BaileyCRAN page ↗GitHub ↗Website ↗Issues ↗

Run mixed-effects models that include weights at every level. The WeMix package fits a weighted mixed model, also known as a multilevel, mixed, or hierarchical linear model (HLM). The weights could be inverse selection probabilities, such as those developed for an education survey where schools are sampled probabilistically, and then students inside of those schools are sampled probabilistically. Although mixed-effects models are already available in R, WeMix is unique in implementing methods for mixed models using weights at multiple levels. Both linear and logit models are supported. Models may have up to three levels. Random effects are estimated using the PIRLS algorithm from 'lme4pureR' (Walker and Bates (2013) https://github.com/lme4/lme4pureR).

Changes in 4.0.3

improvements

there is now a predict function.

BUG FIXES

the latest Matrix package (unclear what version caused the issue, maybe 1.6) caused a bug that is fixed by this version of WeMix.
the haven package doesn't always import data in formats the Matrix package recognizes. Columns that should be numeric are now cast as numeric before they are used, which may prevent this issue. Thanks to Emilie Franck for pointing this out.
the mix function documentation now notes that the coefficient standard errors are always cluster robust (CR-0) estimates. Thanks to Francis Huang for pointing out that it previously mentioned a non-existent argument.
the mix function nolonger fails if the lme4::lmer fit had a variable of exactly zero because bobyqa threw an error. Thanks fo Charles Blankenship for identifying this bug.

FUNCTION RETIREMENT

the functions getHessian2 and getJacobian are removed from the package because they are not used.

From inst/NEWS.Rd in the release

Install

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

install.packages("WeMix", 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("American-Institutes-for-Research/WeMix")

Development version from American-Institutes-for-Research/WeMix. 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-wemix

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-WeMix

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-WeMix

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

5NOTE8OK

Check messages

NOTER code for possible problemsr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64

Found calls to structure() using deprecated special names:
  WeMix/tests/testthat/test-1-main.R (.Dim: 1, .Dimnames: 1)
  WeMix/tests/testthat/test-4-ECLS.R (.Dim: 1, .Dimnames: 1)
  WeMix/tests/testthat/test-5-TIMSS.R (.Dim: 1, .Dimnames: 1)
'.Dim' should be changed to 'dim'.
'.Dimnames' should be changed to 'dimnames'.

CRAN check page ↗

Slowest check: 5.7 min · r-oldrel-windows-x86_64

Status changes

NOTE8 OK, 5 NOTE2026-09-08
ERROR8 OK, 4 NOTE, 1 ERROR2026-09-07
NOTE8 OK, 5 NOTE2026-07-23
ERROR12 OK, 1 ERROR2026-07-07
OK12 OK2026-04-25

Show 1 earlier changeHide 1 earlier change

NOTE13 OK, 1 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 4.0.3

READMENoVignettesYes · 2 · dynamicNEWSYes · mentions 4.0.3Citation fileNoWebsiteYes · pkgdown

Help pages: 3includes a package overview page
Examples that run: 0%2 never run
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 33%

Vignettes (2)

How these are measured

Downloads

10.4K

CRAN downloads in the past year

Rank #3,483 · ~28/day · ~867/mo

Releases R versions

Daily download trend is not available in this view yet.

1.2K30 days

3K90 days

10.4K1 year

Compare downloads with other packages →

Also on119 r2u4 autocran1.8K conda_forge103 c2d4u

How downloads are counted

Repository

american-institutes-for-research/wemix ↗Organization: American-Institutes-for-Research

11Stars

1Forks

2Open issues

0Open PRs

0Releases

43Commits

3Commit identities

License file reads as GPL-2.0 · 43 commits · Last activity 2024-10-24 · Default branch at 4.0.4, ahead of CRAN 4.0.3 (checked 2026-10-18)

Responsiveness

How these are sampled

PRs merged (all time): not measured
Median days to close, 50 most recently updated closed issues: 26
Median days to close, 50 most recently updated closed PRs: not measured

Stars over time

2025-09-03 · 112026-07-07 · 11

How these are measured

PracticesBeta

2 development-tooling and community-health practices detected across 1 family in the upstream repository

Checks run against github.com/american-institutes-for-research/wemix on 2026-10-18.

Docs source (2)

pkgdown

GitHub Pages site last deployed 2024-10-24

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Installing WeMix adds 10 packages (7 with compiled code, 12 MB of source tarballs). Heaviest: lme4 4.1 MB, nloptr 2.1 MB, Rcpp 1.8 MB.

Depends (2)

R >= 3.5.0lme4

Imports (5)

numDerivMatrixmethodsminqa matrixStats

LinkingTo (0)

none

Suggests (7)

testthat knitr rmarkdown withr tidyr EdSurvey (>= 4.0.0)glmmTMB

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

1indirect

Imports 2

Suggested by 3

Depends, Imports or LinkingTo, most downloaded first

EdSurvey MLMusingR

Suggests, most downloaded first

guideR MAIHDA ILSAstats

How these are counted

Code & Tests

People & History

People (10)

Paul Bailey

Author, Maintainer since 3.1.1 (2019)

Huade Huo

Author · added in 3.1.3

Claire Kelley

Author

Trang Nguyen

Author

Blue Webb

Author · added in 4.0.0

Eric Buehler

Contributor · added in 3.1.7

Christian Christrup Kjeldsen

Contributor

Doug Bates

Copyright holder · added in 4.0.0

lme4pureR PIRLS function

Steve Walker

Copyright holder · added in 4.0.0

lme4pureR PIRLS function

Emmanuel Sikali

pdr · added in 3.1.7

Previously maintained by Claire Kelley (1.0.2 to 3.0.0).

Listed in earlier versions (4)

Show 4 peopleHide 4 people

Huade Huo.

no longer listed · 1.0.2 to 3.1.1

Christian Kjeldsen .

no longer listed · 3.1.3 to 3.1.6

Christian Kjeldsen

no longer listed · 3.1.7 to 4.0.0

Christian Christrup

no longer listed · 4.0.3

Releases (21)

Pick two releases to compare their code metrics.

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
4.0.3Latest
record
2023-11-03 · current release · diff ↗
R
R 4.3.0 released · 2023-04-21
4.0.0
record
2023-03-21 · diff ↗
3.3.0
record
2022-12-21 · diff ↗
3.2.4
record
2022-10-05 · diff ↗
3.2.2
record
2022-09-23 · diff ↗
R
R 4.2.0 released · 2022-04-22
3.2.1
record
2021-12-07 · diff ↗
3.2.0
record
2021-11-16 · diff ↗
3.1.9
record
2021-10-20 · diff ↗
3.1.8
record
2021-06-06 · diff ↗
R
R 4.1.0 released · 2021-05-18
3.1.7
record
2021-05-11 · diff ↗

Show 17 earlier eventsHide 17 earlier events

3.1.6
record
2020-12-08 · diff ↗
3.1.5
record
2020-09-09 · diff ↗
3.1.4
record
2020-05-21 · diff ↗
R
R 4.0.0 released · 2020-04-24
3.1.3
record
2020-01-09 · diff ↗
3.1.1
record
2019-06-27 · diff ↗
R
R 3.6.0 released · 2019-04-26
3.0.0
record
2019-03-30 · diff ↗ ·
added 1 export
waldTest
2.2.1
record
2019-03-14 · diff ↗ ·
added 1 export
mix
unarchivedReturned to CRAN
2019-03-13
2.2.0
record
2019-03-13 · diff ↗ ·
removed 2 exports
calc_lin_lnl_quad_fast, mix
archivedRemoved from CRAN
2019-03-05
check problems were not corrected despite reminders
2.1.0
record
2018-09-24 · diff ↗
2.0.0
record
2018-08-14 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.0.2
record
2018-04-10
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2018-04-10
Total releases: 21 / 8 yrs
License: GPL-2 OSI
Minimum R: ≥ 3.5.0
Download size: 620 KB

Appears in task views

Mixed, Multilevel, and Hierarchical Models in R

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("WeMix")

Format

Bailey, P., Bates, D., Buehler, E., Huo, H., Kelley, C., Kjeldsen, C. C., Nguyen, T., Sikali, E., Walker, S., & Webb, B. (2023). WeMix: Weighted Mixed-Effects Models Using Multilevel Pseudo Maximum Likelihood Estimation (Version 4.0.3) [Computer software]. https://doi.org/10.32614/CRAN.package.WeMix

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 WeMix version 4.0.3 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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