R Observatory: Metrics for nbody version 1.41

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

nbody

1.41Package record

Gravitational N-Body Simulation

0packages depend

2.2Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Danail ObreschkowCRAN page ↗

Run simple direct gravitational N-body simulations. The package can access different external N-body simulators (e.g. GADGET-4 by Springel et al. (2021) doi:10.48550/arXiv.2010.03567), but also has a simple built-in simulator. This default simulator uses a variable block time step and lets the user choose between a range of integrators, including 4th and 6th order integrators for high-accuracy simulations. Basic top-hat smoothing is available as an option. The code also allows the definition of background particles that are fixed or in uniform motion, not subject to acceleration by other particles.

Install

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

install.packages("nbody", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-nbody

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-nbody

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-nbody

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-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-04-22
ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.41

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 8includes a package overview page
Examples that run: 100%2 run in a plain check
Exported functions with examples: 33%
Documented parameters: 100%
Return-value docs: 83%
Help pages citing references: 0%

How these are measured

Downloads

2.2K

CRAN downloads in the past year

Rank #22,112 · ~6/day · ~186/mo

Releases R versions

Daily download trend is not available in this view yet.

20730 days

60490 days

2.2K1 year

Compare downloads with other packages →

Also on359 r2u7 autocran

How downloads are counted

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing nbody adds 10 packages (6 with compiled code, 8.6 MB of source tarballs). Heaviest: magicaxis 3.4 MB, maps 2.2 MB, Rcpp 1.8 MB.

Depends (1)

R >= 4.0.0

Imports (2)

magicaxis Rcpp

LinkingTo (1)

Rcpp

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Danail Obreschkow

Author, Maintainer since 1.30 (2022)

Releases (4)

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
unarchivedReturned to CRAN
2024-08-20
1.41Latest
record
2024-08-20 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
archivedRemoved from CRAN
2023-11-28
requires archived package 'magicaxis'
R
R 4.3.0 released · 2023-04-21
1.33
record
2022-08-16 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.31
record
2022-03-04 · diff ↗
1.30
record
2022-02-03
R
R 4.1.0 released · 2021-05-18

Package metadata

First published: 2022-02-03
Total releases: 4 / 4 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.0.0
Download size: 21 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("nbody")

Format

Obreschkow, D. (2024). nbody: Gravitational N-Body Simulation (Version 1.41) [Computer software]. https://doi.org/10.32614/CRAN.package.nbody

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 nbody version 1.41 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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