R Observatory: Metrics for recommenderlab version 1.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

recommenderlab

1.1.0Package record

Lab for Developing and Testing Recommender Algorithms

2packages dependsuggested by 4

16.6Kdownloads / year

40.3%test coverage

13/13flavors OK

Overview

About

Maintained by Michael HahslerCRAN page ↗GitHub ↗Website ↗Issues ↗

Provides a research infrastructure to develop and evaluate collaborative filtering recommender algorithms. This includes a sparse representation for user-item matrices, many popular algorithms, top-N recommendations, and cross-validation. Hahsler (2022) doi:10.48550/arXiv.2205.12371.

Changes in 1.1.0

Made irlba and recosystem optional dependencies. SVD and LIBMF now give an installation hint when their required package is missing.
Fixed mailto in vignette.
Added getting-started guide.
Fixed spelling and grammar in package.
Switched to testthat edition 3 and added tests for rating matrices, recommendations, prediction accuracy, and evaluation.

Bugfixes

Fixed real rating matrix evaluation splits so each user has the requested number of known and withheld ratings.
Fixed cross-validation fold assignment when the number of users is not divisible by the number of folds.

From NEWS.md in the release

Install

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

install.packages("recommenderlab", 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("mhahsler/recommenderlab")

Development version from mhahsler/recommenderlab. 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-recommenderlab

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-recommenderlab

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-recommenderlab

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: 5.1 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-10-07
NOTE12 OK, 2 NOTE2026-04-10
ERROR12 OK, 1 NOTE, 1 ERROR2026-04-09
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.1.0

READMEYes · 548 wordsVignettesYes · 2 · dynamicNEWSYes · 100% structured · mentions 1.1.0Citation fileYes · computed when R runs itWebsiteYes · pkgdown

Help pages: 25
Examples that run: 94%16 run in a plain check · 1 never run
Exported functions with examples: 83%
Documented parameters: 100%
Return-value docs: 83%
Help pages citing references: 24%

Vignettes (2)

How these are measured

Downloads

16.6K

CRAN downloads in the past year

Rank #3,422 · ~46/day · ~1.4K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.5K30 days

3.2K90 days

16.6K1 year

Compare downloads with other packages →

Also on116 r2u125 autocran96 conda_forge

How downloads are counted

Repository

mhahsler/recommenderlab ↗Account: mhahsler

216Stars

61Forks

7Open issues

0Open PRs

13Releases

192Commits

8Commit identities

collaborative-filteringrecommender-system

192 commits · Last activity 2026-10-05 · +0.5% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 77%
Median days to close, 50 most recently updated closed issues: 2
Median days to close, 50 most recently updated closed PRs: 1

Stars over time

2026-07-14 · 2172026-09-28 · 216

How these are measured

PracticesBeta

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

Checks run against github.com/mhahsler/recommenderlab on 2026-10-21.

Continuous integration (1)

GitHub Actions

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-10-05 · The repository has a site deploy workflow

pkgdown site last built 2026-10-05

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

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Installing recommenderlab adds 5 packages (3 with compiled code, 2.3 MB of source tarballs). Heaviest: arules 1.8 MB, matrixStats 207 KB, registry 167 KB.

Depends (4)

R >= 4.5.0Matrixarules proxy

Imports (5)

registrymethodsutilsstatsmatrixStats

LinkingTo (0)

none

Suggests (5)

irlba recosystem testthat knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

Depends 2

Suggested by 4

Depends, Imports or LinkingTo, most downloaded first

recommenderlabBX recommenderlabJester

Suggests, most downloaded first

cmfrec recometrics RMOA crassmat

How these are counted

Code & Tests

Datasets

People & History

People (2)

Michael Hahsler

Bregt Vereet

Contributor · added in 0.2-1

Releases (30)

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
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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
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
3.0.3Latest
record
2014-01-11 · current release · diff ↗ ·
added 1 export
.get_parameters
R
R 3.0.0 released · 2013-04-03
R
R 2.15.0 released · 2012-03-30

Show 35 earlier eventsHide 35 earlier events

2.14.1
record
2011-11-09 · diff ↗ ·
added 2 exports
dropNA, dropNA2matrix
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
2.13.0
record
2011-02-27 · diff ↗
R
R 2.12.0 released · 2010-10-15
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R 2.11.0 released · 2010-04-22
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R 2.10.0 released · 2009-10-26
2.10.0
record
2009-09-11 · diff ↗ ·
added 1 export
recommenderRegistry
1.1.0
record
2026-10-05 · diff ↗ ·
listed once in CRAN's queue
Seen in one reading of CRAN's incoming queue, at 2026-10-04 20:43 UTC, so it stayed less than the time between readings.
1.0.7
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2025-05-31 · diff ↗
1.0.6
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2023-09-20 · diff ↗
1.0.5
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2023-09-17 · diff ↗
1.0.4
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2023-06-21 · diff ↗
1.0.3
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2023-01-21 · diff ↗
1.0.2
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2022-08-17 · diff ↗
1.0.1
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2022-06-17 · diff ↗
1.0.0
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2022-05-28 · diff ↗
0.2-7
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2021-02-27 · diff ↗
0.2-6
record
2020-06-18 · diff ↗ ·
added 1 export
dropNAis.na
0.2-5
record
2019-08-27 · diff ↗
0.2-4
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2019-03-23 · diff ↗
0.2-3
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2018-06-20 · diff ↗
0.2-2
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2017-04-06 · diff ↗
0.2-1
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2016-09-17 · diff ↗
0.2-0
record
2016-06-01 · diff ↗ ·
added 3 exports
HybridRecommender, returnRatings, getParameters
0.1-9
record
2016-05-19 · diff ↗ ·
added 5 exports
funkSVD, RMSE, MSE, MAE, frobenius
0.1-8
record
2015-12-18 · diff ↗ ·
removed 1 export
.get_parameters
0.1-7
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2015-07-24 · diff ↗
0.1-6
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2015-07-02 · diff ↗
0.1-5
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2014-08-18 · diff ↗
0.1-4
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2014-01-13 · diff ↗
0.1-3
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2011-11-10 · diff ↗
0.1-2
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2011-02-27 · diff ↗
0.1-0
record
2010-01-23
R
R 2.9.0 released · 2009-04-17

Across CRAN, the median accepted release of the past year spent 23 hours in the queue, 90% under 11 days.How queue time is measured

Package metadata

First published: 2009-09-11
Total releases: 30 / 17 yrs
License: GPL-2 OSI
Copyright: (C) Michael Hahsler
Minimum R: ≥ 4.5.0
Bundled data: 1.1 MB / 4 files
Download size: 1.8 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("recommenderlab")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

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 recommenderlab version 1.1.0 [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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