R Observatory: Metrics for proj4 version 1.0-15

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

proj4

1.0-15Package record

A simple interface to the PROJ.4 cartographic projections library

3packages dependsuggested by 2

62.7Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Simon UrbanekCRAN page ↗GitHub ↗Website ↗Issues ↗

A simple interface to lat/long projection and datum transformation of the PROJ.4 cartographic projections library. It allows transformation of geographic coordinates from one projection and/or datum to another.

Changes in 1.0-15

minor update of the configure script

From NEWS in the release

Install

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

install.packages("proj4", 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("s-u/proj4")

Development version from s-u/proj4. 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-proj4

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-proj4

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 4.8 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK12 OK2026-04-25
NOTE11 OK, 3 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0-15

READMENoVignettesNoNEWSYes · 67% structured · mentions 1.0-15Citation fileNoWebsiteYes

Help pages: 2
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: 100%

How these are measured

Downloads

62.7K

CRAN downloads in the past year

Rank #1,764 · ~172/day · ~5.2K/mo

Releases R versions

Daily download trend is not available in this view yet.

3.6K30 days

11.5K90 days

62.7K1 year

Compare downloads with other packages →

Also on1.5K r2u18K conda_forge306 bioconda314 c2d4u

How downloads are counted

Repository

s-u/proj4 ↗Account: s-u

3Stars

2Forks

0Open issues

0Open PRs

0Releases

48Commits

2Commit identities

48 commits · Last activity 2025-03-21 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 60%
Median days to close, 50 most recently updated closed issues: 116
Median days to close, 50 most recently updated closed PRs: 82

Stars over time

2024-01-17 · 32026-07-07 · 3

How these are measured

PracticesBeta

Checks run against github.com/s-u/proj4 on 2026-10-18.

No development-tooling practices detected in the upstream repository.

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

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Installing proj4 adds no packages beyond those that come with R.

Depends (1)

R >= 2.0.0

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

1indirect

Imports 3

Suggested by 2

Depends, Imports or LinkingTo, most downloaded first

BIOMASS angstroms GeoRange

Suggests, most downloaded first

metR ursa

How these are counted

Code & Tests

People & History

People (1)

Simon Urbanek

Author, Maintainer since 1.0-3, Copyright holder

https://urbanek.org

Releases (14)

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
1.0-15Latest
record
2025-03-21 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
1.0-14
record
2024-01-14 · diff ↗
1.0-13
record
2023-08-17 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.0-12
record
2022-11-30 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.0-11
record
2022-01-31 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.0-10.1
record
2021-01-26 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.0-10
record
2020-03-02 · diff ↗
1.0-8.1
record
2019-09-07 · diff ↗
R
R 3.6.0 released · 2019-04-26

Show 23 earlier eventsHide 23 earlier events

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
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
R
R 3.0.0 released · 2013-04-03
1.0-8
record
2012-08-05 · diff ↗
R
R 2.15.0 released · 2012-03-30
1.0-7
record
2011-12-11 · diff ↗
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
1.0-6
record
2011-02-01 · diff ↗
1.0-5
record
2011-01-17 · diff ↗
R
R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
R
R 2.10.0 released · 2009-10-26
R
R 2.9.0 released · 2009-04-17
R
R 2.8.0 released · 2008-10-20
R
R 2.7.0 released · 2008-04-22
R
R 2.6.0 released · 2007-10-03
1.0-4
record
2007-06-10 · diff ↗
1.0-3
record
2007-06-07
R
R 2.5.0 released · 2007-04-24

Package metadata

First published: 2007-06-07
Total releases: 14 / 19 yrs
License: GPL-2 OSI
Minimum R: ≥ 2.0.0
Download size: 42 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("proj4")

Format

Urbanek, S. (2025). proj4: A simple interface to the PROJ.4 cartographic projections library (Version 1.0-15) [Computer software]. https://doi.org/10.32614/CRAN.package.proj4

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 proj4 version 1.0-15 [Data set]. HJJB, LLC. Data release v2026-10-20. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-20, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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