R Observatory: Metrics for LA version 2.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

LA

2.3Package record

Lioness Algorithm (LA)

0packages depend

6.4Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Hongzhi WangCRAN page ↗

Contains Lioness Algorithm (LA) for finding optimal designs over continuous design space, optimal Latin hypercube designs, and optimal order-of-addition designs. LA is a brand new nature-inspired meta-heuristic optimization algorithm. Detailed methodologies of LA and its implementation on numerical simulations can be found at Hongzhi Wang, Qian Xiao and Abhyuday Mandal (2021) doi:10.48550/arXiv.2010.09154.

Changes in 2.3

There was no big updates for the package functions. Updates were only made for the accommodation to new version of R.

From NEWS.md in the release

Install

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

install.packages("LA", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-la

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-LA

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-LA

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: 2.8 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-04-22
ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.3

READMENoVignettesNoNEWSYes · 100% structured · mentions 2.3Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 3
Examples that run: 100%3 run in a plain check
Exported functions with examples: 100%
Documented parameters: not tracked
Return-value docs: not tracked
Help pages citing references: 0%

How these are measured

Downloads

6.4K

CRAN downloads in the past year

Rank #7,622 · ~18/day · ~536/mo

Releases R versions

Daily download trend is not available in this view yet.

46930 days

1.2K90 days

6.4K1 year

Compare downloads with other packages →

Also on341 r2u9 autocran

How downloads are counted

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing LA adds 2 packages (2 with compiled code, 2.8 MB of source tarballs). Heaviest: Rcpp 1.8 MB, RcppArmadillo 1.0 MB.

Depends (0)

none

Imports (1)

Rcpp

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (4)

testthat knitr rmarkdown devtools

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (3)

Hongzhi Wang

Author, Maintainer since 0.1.0 (2021)

Abhyuday Mandal

Author

Qian Xiao

Author

Releases (8)

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
2.3Latest
record
2024-06-03 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
2.2
record
2022-10-27 · diff ↗
2.1
record
2022-05-11 · diff ↗
2.0
record
2022-05-07 · diff ↗ ·
removed 6 exports
LA_LHD, LA_OofA, LA_opt, MOM, PWO, rOofA

added 1 export
pattern:^[[:alpha:]]+
R
R 4.2.0 released · 2022-04-22
0.1.3
record
2021-11-19 · diff ↗
0.1.2
record
2021-09-22 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.1.1
record
2021-04-20 · diff ↗
0.1.0
record
2021-04-15
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2021-04-15
Total releases: 8 / 5 yrs
License: MIT + file LICENSE OSI
Download size: 11 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("LA")

Format

Wang, H., Mandal, A., & Xiao, Q. (2024). LA: Lioness Algorithm (LA) (Version 2.3) [Computer software]. https://doi.org/10.32614/CRAN.package.LA

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 LA version 2.3 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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