l1rotation

1.0.1

Identify Loading Vectors under Sparsity in Factor Models

0packages depend

6.1Kdownloads / year

90.2%test coverage

13/13checks pass

Overview

About

Maintained by Ryan KoblerFirst published 2025-05-201 releasesCRAN page ↗GitHub ↗

Simplify the loading matrix in factor models using the l1 criterion as proposed in Freyaldenhoven (2025) doi:10.21799/frbp.wp.2020.25. Given a data matrix, find the rotation of the loading matrix with the smallest l1-norm and/or test for the presence of local factors with main function local_factors().

Install

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

install.packages("l1rotation", 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("SimonFreyaldenhoven/l1rotation")

Development version from SimonFreyaldenhoven/l1rotation. 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-l1rotation

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-l1rotation

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-l1rotation

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

Health

CRAN checks

13OK

Slowest check: 3.1 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 5.55

90.2%

Coverage · measured lines

75%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-06-08
12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 87 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

6.1K

CRAN downloads in the past year

Rank #7,314 · ~17/day · ~512/mo

Releases R versions

Daily download trend is not available in this view yet.

31930 days

1.4K90 days

6.1K1 year

Compare downloads with other packages →

Also on90 r2u36 autocran

Repository

GitHub ↗ simonfreyaldenhoven/l1rotation

1Stars

1Forks

0Open issues

0Open PRs

4Releases

45Commits

5Contributors

45 commits · Last activity 2025-08-21

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/simonfreyaldenhoven/l1rotation on 2026-07-19.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

13 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5

Imports (10)

cli doParallel dplyr foreach ggplot2 magrittr matrixStats pracma scalesstats

LinkingTo (0)

none

Suggests (4)

knitr quarto rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

Other 3,326 (62%)R 1,671 (31%)Rd 215 (4%)Vignettes 155 (3%)

Code characteristics

Cyclomatic complexity: 3.0 median / 12 max
Test cases: 41 / 5.55 per code line

Test coverage

Line coverage

90%

Expression

88.6%

Tests / Examples

90.2% / 75% ex

Functions

23 3 exported

Complexity

3.7 avg / 12 max

Call network

23 nodes / 24 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

23 functions

Function	Cyclo	Coverage
calculate_pairwise_distances_old	4	0%
find_local_factors exp	12	69%
gridsize	7	75%
test_local_factors exp	7	81%
select_palette	4	82%
local_factors exp	7	88%

People & History

People (2)

Maintainer (1)

Ryan Kobler

Author, Maintainer

Authors (2)

Ryan Kobler

Author, Maintainer

Simon Freyaldenhoven

Author, Copyright holder

Simon Freyaldenhoven

Author, Copyright holder

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.0.1Latest
2026-03-10 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2025-05-20
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 3.5
Bundled data: 352 KB / 1 file
Download size: 4.8 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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