stokes

1.2-3

The Exterior Calculus

0packages depend

3.6Kdownloads / year

93.2%test coverage

13/13checks pass

Overview

About

Maintained by Robin K. S. HankinFirst published 2020-03-2011 releasesCRAN page ↗GitHub ↗

Provides functionality for working with tensors, alternating forms, wedge products, Stokes's theorem, and related concepts from the exterior calculus. Uses 'disordR' discipline (Hankin, 2022, doi:10.48550/arXiv.2210.03856). The canonical reference would be M. Spivak (1965, ISBN:0-8053-9021-9) "Calculus on Manifolds". To cite the package in publications please use Hankin (2022) doi:10.48550/arXiv.2210.17008.

Install

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

install.packages("stokes", 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("RobinHankin/stokes")

Development version from RobinHankin/stokes. 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-stokes

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-stokes

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-stokes

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 9.7 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 1.29

93.2%

Coverage · measured lines

50%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-08
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 1 FAILURE
ERROR2026-06-07
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-30
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 505 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 30%

Downloads

3.6K

CRAN downloads in the past year

Rank #11,734 · ~10/day · ~298/mo

Releases R versions

Daily download trend is not available in this view yet.

27930 days

90890 days

3.6K1 year

Compare downloads with other packages →

Also on84 r2u40 autocran

Repository

GitHub ↗ robinhankin/stokes

3Stars

0Forks

4Open issues

0Open PRs

1Releases

743Commits

3Contributors

743 commits · Last activity 2026-07-07

Stars over time

2020-05-01 · 22026-07-07 · 3

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/robinhankin/stokes on 2026-07-19.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

Coverage (1)

Codecov

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

12 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (5)

permutations partitionsmethodsdisordR (>= 0.9-7)spray

LinkingTo (0)

none

Suggests (8)

knitr Deriv testthat markdown rmarkdown quadform magrittr covr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

Vignettes 4,151 (54%)Rd 1,907 (25%)R 1,566 (20%)Other 103 (1%)

Code characteristics

Object systems

S317S4 generic2

Cyclomatic complexity: 1.0 median / 22 max
Test cases: 27 / 1.29 per code line

Test coverage

Line coverage

93%

Expression

93.4%

Tests / Examples

93.2% / 77% ex

Functions

73 4 exported

Complexity

2.5 avg / 22 max

Call network

73 nodes / 131 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

73 functions

Function	Cyclo	Coverage
coeffs<-.spray	1	0%
print.summary.kform	1	0%
print.summary.ktensor	1	0%
summary.kform	1	0%
summary.ktensor	1	0%
vcp3	1	0%

Datasets

Bundled datasets · 3

Name	Class	Rows × Cols	Also ships in
ex	vector	–	–
ey	vector	–	–
ez	vector	–	–

People & History

People (1)

Maintainer (1)

Robin K. S. Hankin

Author, Maintainer

Authors (1)

Robin K. S. Hankin

Author, Maintainer

Listed in earlier versions (1)

Hankin

no longer listed · 1.0-5 to 1.2-3

Package Timeline

11 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.2-3Latest
2025-01-22 · current release · diff ↗
1.2-1
2024-06-04 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.2-0
2023-08-19 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.1-8
2023-03-21 · diff ↗
1.1-6
2022-12-10 · diff ↗
1.1-3
2022-06-15 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.1-1
2022-01-06 · diff ↗
1.0-9
2021-11-16 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.0-8
2021-05-10 · diff ↗
1.0-7
2021-04-27 · diff ↗

Show 3 earlier events

R
R 4.0.0 released · 2020-04-24
1.0-5
2020-03-20
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2020-03-20
Total releases: 11 / 6 yrs
License: GPL-2 OSI
Minimum R: ≥ 4.1.0
Bundled data: 0.3 KB / 2 files
Download size: 628 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Numerical Mathematics

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