R Observatory: Metrics for cpp4r version 1.3.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

cpp4r

1.3.0Package record

Header-Only 'C++' and 'R' Interface

8packages depend

28.1Kdownloads / year

79.7%test coverage

13/13flavors OK

Overview

About

Maintained by Mauricio Vargas SepulvedaCRAN page ↗GitHub ↗Website ↗Issues ↗

Provides a header only, 'C++' interface to 'R' with enhancements over 'cpp11'. Enforces copy-on-write semantics consistent with 'R' behavior. Offers native support for ALTREP objects, 'UTF-8' string handling, modern 'C++' features and idioms, and reduced memory requirements. Allows for vendoring, making it useful for restricted environments. Compared to 'cpp11', it adds support for converting 'C++' maps to 'R' lists, 'Roxygen' documentation directly in 'C++' code, proper handling of matrix attributes, support for nullable external pointers, bidirectional copy of complex number types, flexibility in type conversions, use of nullable pointers, and various performance optimizations.

Changes in 1.3.0

Allows a header only codebase. The previous versions required one or more .cpp files in order to register the exposed functions.

From NEWS.md in the release

Install

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

install.packages("cpp4r", 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("pachadotdev/cpp4r")

Development version from pachadotdev/cpp4r. 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-cpp4r

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-cpp4r

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-cpp4r

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: 2.6 min · r-oldrel-macos-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.3.0

README· In the repository, left out of the releaseVignettesYes · 17 · staticNEWSYes · 100% structured · mentions 1.3.0Citation fileNoWebsiteYes

Help pages: 5includes a package overview page
Examples that run: 100%4 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (17)

Show 7 moreHide 7 vignettes

How these are measured

Downloads

28.1K

CRAN downloads in the past year

Rank #2,130 · ~77/day · ~2.3K/mo

Releases R versions

Daily download trend is not available in this view yet.

3.2K30 days

8.5K90 days

28.1K1 year

Compare downloads with other packages →

Also on989 r2u22 autocran562 conda_forge

How downloads are counted

Repository

pachadotdev/cpp4r ↗Account: pachadotdev

8Stars

0Forks

0Open issues

0Open PRs

0Releases

46Commits

1Commit identities

cpprstats

License file reads as Apache-2.0 · 46 commits · Last activity 2026-09-23 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 19
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-10-19 · 32026-08-21 · 8

How these are measured

PracticesBeta

11 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/pachadotdev/cpp4r 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

Governance and community (4)

Code of conductContributing guideIssue templates

The repository owner accepts GitHub Sponsors

Docs source (1)

GitHub Pages site last deployed 2026-09-23

Coverage (1)

Coverage reporting

Show all practicesHide 2 practices

Reproducibility and dev environment (1)

Makefile

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing cpp4r adds no packages beyond those that come with R.

Depends (1)

R >= 4.0.0

Imports (0)

none

LinkingTo (0)

none

Suggests (3)

tinytest rbibutils litedown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

8direct

22indirect

Imports 1 · LinkingTo 7

Depends, Imports or LinkingTo, most downloaded first

armadillo4r lotri economiccomplexity capybara redatam kendallknight leontief tinycache

How these are counted

Code & Tests

People & History

People (2)

Mauricio Vargas Sepulveda

Author, Maintainer since 0.3.0 (2025)

Posit Software, PBC

Author

Original cpp11 package

Releases (8)

Pick two releases to compare their code metrics.

1.3.0Latest
record
2026-09-23 · current release · diff ↗
1.1.0
record
2026-07-21 · diff ↗
1.0.0
record
2026-06-12 · diff ↗
0.6.0
record
2026-05-17 · diff ↗
R
R 4.6.0 released · 2026-04-24
0.5.1
record
2026-04-15 · diff ↗
0.5.0
record
2026-04-13 · diff ↗
0.4.0
record
2025-12-04 · diff ↗
0.3.0
record
2025-10-16
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2025-10-16
Total releases: 8 / 1 yrs
License: Apache License (>= 2)
Minimum R: ≥ 4.0.0
Download size: 203 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("cpp4r")

Format

Vargas Sepulveda, M., & Posit Software, PBC, . (2026). cpp4r: Header-Only 'C++' and 'R' Interface (Version 1.3.0) [Computer software]. https://doi.org/10.32614/CRAN.package.cpp4r

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 cpp4r version 1.3.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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