R Observatory: Metrics for stray version 0.1.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

stray

0.1.1Package record

Anomaly Detection in High Dimensional and Temporal Data

1packages depend

3.1Kdownloads / year

–test coverage

7/13flavors OK

Overview

About

Maintained by Priyanga Dilini TalagalaCRAN page ↗GitHub ↗Issues ↗

This is a modification of 'HDoutliers' package. The 'HDoutliers' algorithm is a powerful unsupervised algorithm for detecting anomalies in high-dimensional data, with a strong theoretical foundation. However, it suffers from some limitations that significantly hinder its performance level, under certain circumstances. This package implements the algorithm proposed in Talagala, Hyndman and Smith-Miles (2019) arXiv:1908.04000 for detecting anomalies in high-dimensional data that addresses these limitations of 'HDoutliers' algorithm. We define an anomaly as an observation that deviates markedly from the majority with a large distance gap. An approach based on extreme value theory is used for the anomalous threshold calculation.

Install

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

install.packages("stray", 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("pridiltal/stray")

Development version from pridiltal/stray. 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-stray

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-stray

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-stray

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

6NOTE7OK

Check messages

NOTERd cross-referencesr-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-patched-linux-x86_64, r-release-linux-x86_64

r-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-gcc, r-patched-linux-x86_64, r-release-linux-x86_64

Unknown package ‘HDoutliers’ in Rd xrefs

r-devel-linux-x86_64-fedora-clang

Undeclared package ‘HDoutliers’ in Rd xrefs
Unknown package ‘HDoutliers’ in Rd xrefs

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

Maintainer: ‘Priyanga Dilini Talagala <pritalagala@gmail.com>’

The Description field contains
  <arXiv:1908.04000> for detecting anomalies in high-dimensional data
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.

NOTEdependencies in R coder-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc

Namespace in Imports field not imported from:
  ‘ks’
All declared Imports should be used.

CRAN check page ↗

Slowest check: 1.6 min · r-oldrel-windows-x86_64

Status changes

NOTE7 OK, 6 NOTENow
NOTE10 OK, 4 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.1

README· In the repository, left out of the releaseVignettesNoNEWSNoCitation fileNo

Help pages: 13includes a package overview page
Examples that run: 100%2 run in a plain check
Exported functions with examples: 50%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 15%

How these are measured

Downloads

3.1K

CRAN downloads in the past year

Rank #15,068 · ~8/day · ~256/mo

Releases R versions

Daily download trend is not available in this view yet.

28530 days

79990 days

3.1K1 year

Compare downloads with other packages →

Also on227 r2u5 autocran

How downloads are counted

Repository

pridiltal/stray ↗Account: pridiltal

60Stars

9Forks

1Open issues

1Open PRs

0Releases

146Commits

2Commit identities

stray

146 commits · Last activity 2023-11-19 · 0% stars, 30d

Responsiveness

not measured

Stars over time

2026-07-11 · 592026-09-07 · 60

How these are measured

PracticesBeta

4 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/pridiltal/stray on 2026-10-18.

Continuous integration (1)

Travis CI (config file)

Docs source (2)

README.Rmd

GitHub Pages site last deployed 2023-11-19

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Installing stray adds 28 packages (17 with compiled code, 24 MB of source tarballs). Heaviest: ggplot2 6.0 MB, mclust 2.7 MB, colorspace 2.0 MB.

Depends (1)

R >= 3.4.0

Imports (6)

FNN ggplot2 colorspace pcaPPstatsks

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Depends, Imports or LinkingTo, most downloaded first

weird

How these are counted

Code & Tests

Datasets

People & History

People (3)

Priyanga Dilini Talagala

Author, Maintainer since 0.1.0 (2019)

Rob J Hyndman

Thesis advisor

Kate Smith-Miles

Thesis advisor

Releases (2)

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
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
0.1.1Latest
record
2020-06-29 · current release · diff ↗ ·
removed 1 export
find_theshold

added 1 export
find_threshold
R
R 4.0.0 released · 2020-04-24
0.1.0
record
2019-12-17
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-12-17
Total releases: 2 / 7 yrs
License: GPL-2 OSI
Minimum R: ≥ 3.4.0
Bundled data: 202 KB / 8 files
Download size: 368 KB

Appears in task views

Anomaly Detection

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("stray")

Format

Talagala, P. D., Hyndman, R. J., & Smith-Miles, K. (2020). stray: Anomaly Detection in High Dimensional and Temporal Data (Version 0.1.1) [Computer software]. https://doi.org/10.32614/CRAN.package.stray

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 stray version 0.1.1 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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