R Observatory: Metrics for dml version 1.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

This package has an overdue CRAN deadline (Oct 12) to fix its check problems; archival is imminent. See the check details

dml

1.1.0Package record

Distance Metric Learning in R

0packages depend

3.2Kdownloads / year

96.5%test coverage

0/13flavors OK

Overview

About

Maintained by Yuan TangCRAN page ↗GitHub ↗Issues ↗

The state-of-the-art algorithms for distance metric learning, including global and local methods such as Relevant Component Analysis, Discriminative Component Analysis, Local Fisher Discriminant Analysis, etc. These distance metric learning methods are widely applied in feature extraction, dimensionality reduction, clustering, classification, information retrieval, and computer vision problems.

Changes in 1.1.0

Added Semi-supervised Local Fisher Discriminant Analysis (SELF) algorithm
Existing algorithms in this package are tested

From NEWS in the release

Install

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

install.packages("dml", 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("terrytangyuan/dml")

Development version from terrytangyuan/dml. 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-dml

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-dml

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-dml

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

13NOTE

Check messages

NOTERd filesr-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, r-oldrel-macos-arm64, r-oldrel-macos-x86_64, r-oldrel-windows-x86_64, r-patched-linux-x86_64, r-release-linux-x86_64, r-release-macos-arm64, r-release-macos-x86_64, r-release-windows-x86_64

checkRd: (-1) dca.Rd:24: Lost braces; missing escapes or markup?
    24 | \eqn{neglinks_{ij} = 1} means chunklet \code{i} and chunklet {j}
       |                                                              ^
checkRd: (-1) dca.Rd:26: Lost braces; missing escapes or markup?
    26 | \eqn{neglinks_{ij} = 0} means chunklet \code{i} and chunklet {j}
       |                                                              ^
checkRd: (-1) rca.Rd:57: Lost braces; missing escapes or markup?
    57 |       e.g. {1, 3, 7} and {4, 6}, might belong to the
       |            ^
checkRd: (-1) rca.Rd:57: Lost braces; missing escapes or markup?
    57 |       e.g. {1, 3, 7} and {4, 6}, might belong to the
       |                          ^

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Yuan Tang <terrytangyuan@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Yuan",
                      family = "Tang",
                      role = c("aut", "cre"),
                      email = "terrytangyuan@gmail.com"),
               person(given = "Gao",
                      family = "Tao",
                      role = "aut",
                      email = "joegaotao@gmail.com"),
               person(given = "Xiao",
                      family = "Nan",
                      role = "aut",
                      email = "road2stat@gmail.com"))
as necessary.

CRAN check page ↗

Slowest check: 1.7 min · r-oldrel-windows-x86_64

Status changes

NOTE13 NOTENow
NOTE14 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.1.0

READMEYes · 240 wordsVignettesNoNEWSYes · 67% structured · mentions 1.1.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 4
Examples that run: 0%4 never run
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 100%

How these are measured

Downloads

3.2K

CRAN downloads in the past year

Rank #9,596 · ~9/day · ~270/mo

Releases R versions

Daily download trend is not available in this view yet.

35130 days

1K90 days

3.2K1 year

Compare downloads with other packages →

Also on76 r2u7 autocran981 conda_forge

How downloads are counted

Repository

terrytangyuan/dml ↗Account: terrytangyuan

58Stars

30Forks

10Open issues

0Open PRs

2Releases

103Commits

12Commit identities

rdistance-metric-learningmachine-learningstatisticsdimensionality-reductionmetric-learning

License file reads as MIT · 103 commits · Last activity 2023-07-07 · Default branch at 1.1.0.9001, ahead of CRAN 1.1.0 (checked 2026-10-11)

Responsiveness

How these are sampled

PRs merged (all time): 77%
Median days to close, 50 most recently updated closed issues: 1
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2024-04-23 · 582026-07-07 · 58

How these are measured

PracticesBeta

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

Checks run against github.com/terrytangyuan/dml on 2026-10-11.

Continuous integration (1)

Travis CI (config file)

Governance and community (4)

Code of conductContributing guide

Funding links: GitHub Sponsors

The repository owner accepts GitHub Sponsors

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Installing dml adds 6 packages (4 with compiled code, 4.0 MB of source tarballs). Heaviest: Rcpp 1.8 MB, RcppEigen 1.7 MB, plyr 392 KB.

Depends (1)

MASS

Imports (1)

lfda

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (from the free-text Author field) (3)

Yuan Tang

Gao Tao

Xiao Nan

Maintainer since 1.1.0 (2015)

Releases (1)

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
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
1.1.0Latest
record
2015-08-29 · current release
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-08-29
Total releases: 1 / 11 yrs
License: MIT + file LICENSE OSI
Download size: 12 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("dml")

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 dml version 1.1.0 [Data set]. HJJB, LLC. Data release v2026-10-17. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-17, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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