R Observatory: Metrics for transformr version 0.1.5

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

transformr

0.1.5Package record

Polygon and Path Transformations

3packages dependsuggested by 7

253.4Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Thomas Lin PedersenCRAN page ↗GitHub ↗Issues ↗

In order to smoothly animate the transformation of polygons and paths, many aspects needs to be taken into account, such as differing number of control points, changing center of rotation, etc. The 'transformr' package provides an extensive framework for manipulating the shapes of polygons and paths and can be seen as the spatial brother to the 'tweenr' package.

Changes in 0.1.5

Fix a bug in tween_sf() when tweening simple features with different crs

From NEWS.md in the release

Install

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

install.packages("transformr", 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("thomasp85/transformr")

Development version from thomasp85/transformr. 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-transformr

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-transformr

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-transformr

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: 2.8 min · r-devel-windows-x86_64

Status changes

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

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.5

READMEYes · 729 wordsVignettesNoNEWSYes · 100% structured · mentions 0.1.5Citation fileNo

Help pages: 6 (1 internal)includes a package overview page
Examples that run: 100%4 run in a plain check
Exported functions with examples: 80%
Documented parameters: 75%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

253.4K

CRAN downloads in the past year

Rank #929 · ~694/day · ~21.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

14.2K30 days

44.9K90 days

253.4K1 year

Compare downloads with other packages →

Also on2.4K r2u5 autocran4.1K conda_forge

How downloads are counted

Repository

thomasp85/transformr ↗Account: thomasp85

117Stars

10Forks

8Open issues

0Open PRs

4Releases

82Commits

1Commit identities

rstatsanimationdata-visualizationtweeninginterpolationmatching-shapes

82 commits · Last activity 2024-02-26 · 0% stars, 30d · Default branch at 0.1.5.9000, ahead of CRAN 0.1.5 (checked 2026-10-11)

Responsiveness

How these are sampled

PRs merged (all time): not measured
Median days to close, 50 most recently updated closed issues: 65
Median days to close, 50 most recently updated closed PRs: not measured

Stars over time

2025-04-01 · 1172026-07-07 · 117

How these are measured

PracticesBeta

7 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/thomasp85/transformr 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

Docs source (1)

README.Rmd

Coverage (1)

Coverage reporting (Codecov)

CRAN release process (2)

cran-comments.mdrevdep/

Show all practicesHide 1 practice

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Installing transformr adds 19 packages (16 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 (5)

tweenr rlang sf lpSolve vctrs

LinkingTo (1)

cpp11

Suggests (2)

covr magrittr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

21indirect

Imports 3

Suggested by 7

Depends, Imports or LinkingTo, most downloaded first

gganimate cleanTS heartbeatr

Suggests, most downloaded first

tmap tidybayes ordbetareg contsurvplot Isinglandr tmap.cartogram MagmaClustR

How these are counted

Code & Tests

People & History

People (1)

Thomas Lin Pedersen

Maintainer since 0.1.1 (2018), Author

Releases (5)

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
0.1.5Latest
record
2024-02-26 · current release · diff ↗
R
R 4.3.0 released · 2023-04-21
0.1.4
record
2022-08-18 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
0.1.3
record
2020-07-05 · diff ↗
0.1.2
record
2020-06-19 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.1.1
record
2018-12-09
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-12-09
Total releases: 5 / 8 yrs
License: MIT + file LICENSE OSI
Download size: 1.8 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("transformr")

Format

Pedersen, T. L. (2024). transformr: Polygon and Path Transformations (Version 0.1.5) [Computer software]. https://doi.org/10.32614/CRAN.package.transformr

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 transformr version 0.1.5 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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