R Observatory: Metrics for watson version 1.0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

watson

1.0.0Package record

Fitting and Simulating Mixtures of Watson Distributions

0packages depend

3.1Kdownloads / year

43.8%test coverage

13/13flavors OK

Overview

About

Maintained by Lukas SablicaCRAN page ↗GitHub ↗Issues ↗

Tools for fitting and simulating mixtures of Watson distributions. The package is described in Sablica, Hornik and Leydold (2026) doi:10.18637/jss.v115.i04. The random sampling scheme of the package offers two sampling algorithms that are based of the results of Sablica, Hornik and Leydold (2022) doi:10.1080/10618600.2024.2416521. What is more, the package offers a smart tool to combine these two methods, and based on the selected parameters, it approximates the relative sampling speed for both methods and picks the faster one. In addition, the package offers a fitting function for the mixtures of Watson distribution, that uses the expectation-maximization (EM) algorithm. Special features are the possibility to use multiple variants of the E-step and M-step, sparse matrices for the data representation and state of the art methods for numerical evaluation of needed special functions using the results of Sablica and Hornik (2022) doi:10.1090/mcom/3690 and Sablica and Hornik (2024) doi:10.1016/j.jmaa.2024.128262.

Install

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

install.packages("watson", 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("lsablica/watson")

Development version from lsablica/watson. 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-watson

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-watson

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-watson

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: 3.7 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-05-02
NOTE12 OK, 2 NOTE2026-04-22
ERROR11 OK, 2 NOTE, 1 ERROR2026-04-18

Show 1 earlier changeHide 1 earlier change

NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.0

README· In the repository, left out of the releaseVignettesNoNEWSYes · 100% structured · does not mention 1.0.0Citation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Cites a JSS article

Help pages: 4
Examples that run: 67%2 run in a plain check · 1 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 75%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 75%

How these are measured

Downloads

3.1K

CRAN downloads in the past year

Rank #14,509 · ~8/day · ~258/mo

Releases R versions

Daily download trend is not available in this view yet.

30630 days

82290 days

3.1K1 year

Compare downloads with other packages →

Also on371 r2u5 autocran

How downloads are counted

Repository

lsablica/watson ↗Account: lsablica

0Stars

0Forks

0Open issues

0Open PRs

0Releases

License file reads as GPL-3.0 · Last activity 2026-01-19

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: not measured

How these are measured

PracticesBeta

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

Checks run against github.com/lsablica/watson on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

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

Reproducibility and dev environment (1)

data-raw/

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing watson adds 3 packages (3 with compiled code, 2.8 MB of source tarballs). Heaviest: Rcpp 1.8 MB, RcppArmadillo 1.0 MB, Tinflex 49 KB.

Depends (1)

R >= 3.5.0

Imports (2)

Rcpp Tinflex

LinkingTo (3)

Rcpp RcppArmadillo Tinflex

Suggests (2)

HSAUR3 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 (5)

Lukas Sablica

Author, Maintainer since 0.0.1 (2022)

Kurt Hornik

Author

Josef Leydold

Author

Brian Gough

Contributor, Copyright holder

Author and copyright holder of included GNU GSL code

Gerard Jungman

Contributor, Copyright holder

Author and copyright holder of included GNU GSL code

Releases (8)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.0.0Latest
record
2026-01-18 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
0.6
record
2025-02-19 · diff ↗
0.5
record
2024-11-19 · diff ↗ ·
added 1 export
id
R
R 4.4.0 released · 2024-04-24
0.4
record
2023-06-01 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.3
record
2023-03-17 · diff ↗
0.2
record
2023-03-09 · diff ↗
0.1
record
2022-10-12 · diff ↗
0.0.1
record
2022-09-26
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2022-09-26
Total releases: 8 / 4 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Download size: 83 KB

Appears in task views

Probability Distributions

Cite

Cite this package

Run in R for the authors' entry:

citation("watson")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.18637/jss.v115.i04.

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 watson version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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