R Observatory: Metrics for tanaka version 0.4.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

tanaka

0.4.0Package record

Design Shaded Contour Lines (or Tanaka) Maps

1packages depend

4.1Kdownloads / year

100.0%test coverage

13/13flavors OK

Overview

About

Maintained by Timothée GiraudCRAN page ↗GitHub ↗Issues ↗

The Tanaka method enhances the representation of topography on a map using shaded contour lines. In this simplified implementation of the method, north-west white contours represent illuminated topography and south-east black contours represent shaded topography. See Tanaka (1950) doi:10.2307/211219.

Changes in 0.4.0

Minor changes

use maplegend for legends

From NEWS.md in the release

Install

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

install.packages("tanaka", 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("riatelab/tanaka")

Development version from riatelab/tanaka. 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-tanaka

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-tanaka

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-tanaka

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: 4.4 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-08
NOTE12 OK, 1 NOTE2026-06-07
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.4.0

READMEYes · 250 wordsVignettesNoNEWSYes · 100% structured · mentions 0.4.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 3includes a package overview page
Examples that run: 100%2 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 33%

How these are measured

Downloads

4.1K

CRAN downloads in the past year

Rank #8,189 · ~11/day · ~342/mo

Releases R versions

Daily download trend is not available in this view yet.

43830 days

1.1K90 days

4.1K1 year

Compare downloads with other packages →

Also on88 r2u5 autocran43 c2d4u

How downloads are counted

Repository

riatelab/tanaka ↗Organization: riatelab

86Stars

4Forks

0Open issues

0Open PRs

3Releases

61Commits

2Commit identities

mapr-packagespatialtanaka

61 commits · Last activity 2023-11-28 · +1.2% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 9
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-07-13 · 812026-10-03 · 86

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/riatelab/tanaka 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

Coverage (1)

Coverage reporting (Codecov)

Research and citation (2)

CITATION.cffcodemeta.json

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 tanaka adds 16 packages (12 with compiled code, 22 MB of source tarballs). Heaviest: sf 9.3 MB, s2 2.8 MB, Rcpp 1.8 MB.

Depends (0)

none

Imports (6)

terra sf mapiso maplegendgrDevicesgraphics

LinkingTo (0)

none

Suggests (3)

tinytest covr lwgeom

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Depends, Imports or LinkingTo, most downloaded first

cholera

How these are counted

Code & Tests

People & History

People (1)

Timothée Giraud

Maintainer since 0.1.0 (2019), Author

Releases (7)

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
0.4.0Latest
record
2023-11-28 · current release · diff ↗
R
R 4.3.0 released · 2023-04-21
0.3.0
record
2022-07-04 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.2.0
record
2022-01-07 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.1.3
record
2020-04-14 · diff ↗
0.1.2
record
2020-03-23 · diff ↗
0.1.1
record
2019-10-07 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.1.0
record
2019-03-08
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2019-03-08
Total releases: 7 / 7 yrs
License: GPL-3 OSI
Download size: 489 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("tanaka")

Format

Giraud, T. (2023). tanaka: Design Shaded Contour Lines (or Tanaka) Maps (Version 0.4.0) [Computer software]. https://doi.org/10.32614/CRAN.package.tanaka

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

The repository also keeps a CITATION.cff.

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 tanaka version 0.4.0 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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