R Observatory: Metrics for PROJ version 0.7.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

PROJ

0.7.0Package record

Generic Coordinate System Transformations Using 'PROJ'

2packages depend

22Kdownloads / year

85.8%test coverage

13/13flavors OK

Overview

About

Maintained by Michael D. SumnerCRAN page ↗GitHub ↗Website ↗Issues ↗

A wrapper around the generic coordinate transformation software 'PROJ' that transforms coordinates from one coordinate reference system ('CRS') to another. This includes cartographic projections as well as geodetic transformations. The intention is for this package to be used by user-packages such as 'reproj', and that the older 'PROJ.4' and version 5 pathways be provided by the 'proj4' package.

Changes in 0.7.0

proj_trans() for matrix input again transforms and returns z and m columns as documented, and honors column names "x", "y", "z", "m" when present (regression introduced prior to release, matrix input was reduced to xy only). This also restores reproj::reproj_xyz() functionality downstream.
Added proj_factors() for cartographic properties, scale factors, angular distortion and meridian convergence. Coordinates that fail in the underlying computation return NaN for that row. Integer matrix input is now coerced safely. Using a CRS (rather than a '+proj=' string) requires PROJ >= 8.2 and is now an explicit error on older versions.
Removed 'CXX_STD = CXX' thanks to CRAN.

From NEWS.md in the release

Install

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

install.packages("PROJ", 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("hypertidy/PROJ")

Development version from hypertidy/PROJ. 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-proj

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-PROJ

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-PROJ

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: 5.2 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-09-08
ERROR12 OK, 1 ERROR2026-09-07
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-07-12

Show 1 earlier changeHide 1 earlier change

WARNING9 OK, 3 NOTE, 2 WARNING2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.7.0

READMEYes · 264 wordsVignettesYes · 1 · staticNEWSYes · 100% structured · mentions 0.7.0Citation fileNoWebsiteYes · pkgdown

Help pages: 8 (1 internal)includes a package overview page
Examples that run: 100%6 run in a plain check
Exported functions with examples: 100%
Documented parameters: 55%
Return-value docs: 100%
Help pages citing references: 25%

Vignettes (1)

PROJ HTML

How these are measured

Downloads

22K

CRAN downloads in the past year

Rank #2,739 · ~60/day · ~1.8K/mo

Releases R versions

Daily download trend is not available in this view yet.

2K30 days

5.3K90 days

22K1 year

Compare downloads with other packages →

Also on520 r2u7 autocran7.2K conda_forge129 c2d4u

How downloads are counted

Repository

hypertidy/proj ↗Organization: hypertidy

16Stars

3Forks

1Open issues

0Open PRs

0Releases

448Commits

7Commit identities

448 commits · Last activity 2026-10-13

Responsiveness

How these are sampled

PRs merged (all time): 92%
Median days to close, 50 most recently updated closed issues: 34
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-03-30 · 162026-07-07 · 16

How these are measured

PracticesBeta

11 development-tooling and community-health practices detected across 8 families in the upstream repository

Checks run against github.com/hypertidy/proj on 2026-10-11.

Continuous integration (2)

GitHub ActionsR CMD check workflow

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

Governance and community (1)

Code of conduct

Docs source (3)

README.Rmd

GitHub Pages site last deployed 2026-07-10 · The repository has a site deploy workflow

Coverage (1)

Coverage reporting

Show all practicesHide 4 practices

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

Git structural (1)

.gitattributes

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

AI coding toolsBeta

This repository shows signs of AI coding tools.

GitHub Copilotfirst seen 2026-02-24
Pull request: opened by its own account
Commits: 3 by its own account
Claude Codefirst seen 2026-07-10
Named in .Rbuildignore: .claude

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Installing PROJ adds 4 packages (3 with compiled code, 2.5 MB of source tarballs). Heaviest: wk 1.0 MB, rlang 766 KB, cli 629 KB.

Depends (1)

R >= 3.0.2

Imports (2)

lifecycle wk

LinkingTo (1)

wk

Suggests (5)

testthat spelling knitr rmarkdown sf

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

8indirect

Imports 2

Depends, Imports or LinkingTo, most downloaded first

reproj tissot

How these are counted

Code & Tests

Datasets

People & History

People (5)

Michael D. Sumner

Author, Maintainer since 0.1.0 (2020)

Dewey Dunnington

Contributor · added in 0.3.1

key code contributions

Anthony North

Contributor · added in 0.5.0

Jeroen Ooms

Contributor

provided PROJ library support on Windows, and assistance with Windows configuration

Simon Urbanek

Copyright holder, Contributor

wrote original code versions for PROJ version 6

Releases (9)

Pick two releases to compare their code metrics.

0.7.0Latest
record
2026-07-10 · current release · diff ↗ ·
added 1 export
proj_factors
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.6.0
record
2025-04-03 · diff ↗
0.5.0
record
2024-06-12 · diff ↗ ·
added 1 export
proj_trans_create
R
R 4.4.0 released · 2024-04-24
0.4.5
record
2023-12-01 · diff ↗ ·
removed 1 export
proj_trans_generic

added 1 export
proj_version
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
0.4.0
record
2020-10-19 · diff ↗
0.3.1
record
2020-08-31 · diff ↗ ·
removed 1 export
proj_create

added 2 exports
proj_crs_text, proj_trans
R
R 4.0.0 released · 2020-04-24
0.1.6
record
2020-04-15 · diff ↗
0.1.5
record
2020-03-29 · diff ↗ ·
added 1 export
proj_create
0.1.0
record
2020-01-07

Show 1 earlier eventHide 1 earlier event

R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2020-01-07
Total releases: 9 / 6 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.0.2
Bundled data: 38 KB / 1 file
Download size: 222 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("PROJ")

Format

Sumner, M. D., Dunnington, D., North, A., Ooms, J., & Urbanek, S. (2026). PROJ: Generic Coordinate System Transformations Using 'PROJ' (Version 0.7.0) [Computer software]. https://doi.org/10.32614/CRAN.package.PROJ

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 PROJ version 0.7.0 [Data set]. HJJB, LLC. Data release v2026-10-17. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-17, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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