R Observatory: Metrics for RECA version 1.7.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

RECA

1.7.1Package record

Relevant Component Analysis for Supervised Distance Metric Learning

0packages depend

10.7Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Nan XiaoCRAN page ↗GitHub ↗Website ↗Issues ↗

Relevant Component Analysis (RCA) tries to find a linear transformation of the feature space such that the effect of irrelevant variability is reduced in the transformed space.

Changes in 1.7.1

Fix R CMD check notes for r-devel on invalid file URIs in README.md.
Use GitHub Actions workflows to run R CMD check and build pkgdown website.

From NEWS.md in the release

Install

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

install.packages("RECA", 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("nanxstats/RECA")

Development version from nanxstats/RECA. 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-reca

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-RECA

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-RECA

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: 46 s · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.7.1

READMEYes · 79 wordsVignettesNoNEWSYes · 67% structured · mentions 1.7.1Citation fileNoWebsiteYes · pkgdown

Help pages: 2 (1 internal)includes a package overview page
Examples that run: 100%1 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 50%

How these are measured

Downloads

10.7K

CRAN downloads in the past year

Rank #2,223 · ~29/day · ~889/mo

Releases R versions

Daily download trend is not available in this view yet.

2.1K30 days

7.9K90 days

10.7K1 year

Compare downloads with other packages →

Also on69 r2u3 autocran

How downloads are counted

Repository

nanxstats/reca ↗Account: nanxstats

7Stars

2Forks

0Open issues

0Open PRs

4Releases

75Commits

1Commit identities

machine-learningmetric-learning

License file reads as GPL-3.0 · 75 commits · Last activity 2025-07-30

Responsiveness

How these are sampled

PRs merged (all time): not measured
Median days to close, 50 most recently updated closed issues: 1,814
Median days to close, 50 most recently updated closed PRs: not measured

How these are measured

PracticesBeta

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

Checks run against github.com/nanxstats/reca on 2026-10-22.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Governance and community (2)

Code of conductContributing guide

Docs source (3)

pkgdown

GitHub Pages site last deployed 2025-08-21 · The repository has a site deploy workflow

pkgdown site last built 2025-08-21

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Installing RECA adds no packages beyond those that come with R.

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (1)

MASS

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Nan Xiao

Releases (7)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.7.1Latest
record
2025-07-28 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
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
1.7
record
2019-05-17 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.6
record
2018-05-16 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.5
record
2018-04-20 · diff ↗
R
R 3.4.0 released · 2017-04-21
1.3
record
2016-11-12 · diff ↗
R
R 3.3.0 released · 2016-05-03

Show 4 earlier eventsHide 4 earlier events

R
R 3.2.0 released · 2015-04-16
1.1
record
2014-12-16 · diff ↗
1.0
record
2014-08-16
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2014-08-16
Total releases: 7 / 12 yrs
License: GPL (>= 3) OSI
Download size: 40 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("RECA")

Format

Xiao, N. (2025). RECA: Relevant Component Analysis for Supervised Distance Metric Learning (Version 1.7.1) [Computer software]. https://doi.org/10.32614/CRAN.package.RECA

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 RECA version 1.7.1 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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