Rcpp | R Observatory

Overview

About

Maintained by Dirk EddelbuettelFirst published 2008-11-06129 releasesCRAN page ↗GitHub ↗

The 'Rcpp' package provides R functions as well as C++ classes which offer a seamless integration of R and C++. Many R data types and objects can be mapped back and forth to C++ equivalents which facilitates both writing of new code as well as easier integration of third-party libraries. Documentation about 'Rcpp' is provided by several vignettes included in this package, via the 'Rcpp Gallery' site at https://gallery.rcpp.org, the paper by Eddelbuettel and Francois (2011, doi:10.18637/jss.v040.i08), the book by Eddelbuettel (2013, doi:10.1007/978-1-4614-6868-4) and the paper by Eddelbuettel and Balamuta (2018, doi:10.1080/00031305.2017.1375990); see 'citation("Rcpp")' for details.

Install

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

install.packages("Rcpp", 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("RcppCore/Rcpp")

Development version from RcppCore/Rcpp. 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-rcpp

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-Rcpp

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-Rcpp

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

4NOTE9OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc

Slowest check: 3.6 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.02

98.8%

Coverage · measured lines

100%

Documentation · exports

2

Dependencies · direct

Check history

NOTE2026-06-27
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-24
10 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-05-24
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-05-14
10 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-05-11
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Show 10 earlier snapshots

ERROR2026-05-10
10 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-05-02
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-25
9 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-04-24
9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-22
8 OK · 5 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-04-21
9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-16
8 OK · 5 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-31
7 OK · 7 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-28
7 OK · 6 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 945 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 22%
Documented parameters: 89%
Return-value docs: 81%
References docs: 13%

Downloads

21.6M

CRAN downloads in the past year

Rank #6 · ~59.2K/day · ~1.8M/mo

Releases R versions

Daily download trend is not available in this view yet.

2M30 days

5.9M90 days

21.6M1 year

Compare downloads with other packages →

Also on226.4K r2u338 autocran1.3M conda_forge10.2K c2d4u

Repository

GitHub ↗ rcppcore/rcpp

798Stars

217Forks

3Open issues

1Open PRs

48Releases

5,176Commits

85Contributors

rrcppc-plus-pluscranr-packagec-plus-plus-14c-plus-plus-17c-plus-plus-20

License GPL-2.0 · 5,176 commits · Last activity 2026-07-24 · +0.3% stars, 30d

Stars over time

2025-07-20 · 7652026-07-19 · 798

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/rcppcore/rcpp on 2026-07-30.

Continuous integration (1)

GitHub Actions

Lint, format, editor (2)

EditorConfigRStudio project

Coverage (1)

Codecov

Governance and community (3)

Issue templatesPR templateFunding

Show all practices

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (2)

methodsutils

LinkingTo (0)

none

Suggests (4)

tinytest inline rbenchmark pkgKitten

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3,311direct

5,092indirect

and 6,407 more packages.

People & History

People (9)

Maintainer (1)

Dirk Eddelbuettel

Author, Maintainer

Authors (9)

Dirk Eddelbuettel

Author, Maintainer

JJ Allaire

Author · added in 0.10.0

Doug Bates

Author · added in 1.0.13-1

John Chambers

Author · added in 2.12.0

Romain Francois

Author · added in 0.7.1

Qiang Kou

Author · added in 0.12.0

Nathan Russell

Author · added in 0.12.8

Iñaki Ucar

Author · added in 1.0.13-1

Kevin Ushey

Author · added in 3.0.3

Listed in earlier versions (14)

Dominick Samperi

no longer listed · 0.6.0 to 0.6.2

David Reiss

no longer listed · 0.6.3 to 0.8.6

Dirk Eddelbuettel with contributions by Simon Urbanek

no longer listed · 0.6.3 to 0.7.0

David Reiss; based on code written during 2005

no longer listed · 0.7.0 to 0.7.9

2006 by Dominick Samperi

no longer listed · 0.7.0 to 0.8.9

with contributions by Simon Urbanek

no longer listed · 0.7.1 to 0.8.6

Douglas Bates; based on code written during 2005

no longer listed · 0.7.10 to 0.8.6

and David Reiss; based on code written during 2005

no longer listed · 2.12.0 to 0.8.8

Package Timeline

129 releases. Pick two to compare their code metrics. R releases are shown for context.

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R 2.8.0 released · 2008-10-20

Package metadata

First published: 2008-11-06
Total releases: 129 / 18 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.5.0
Download size: 1.8 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

High-Performance and Parallel Computing with R Numerical Mathematics