R Observatory: Metrics for PreciseSums version 0.7

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

PreciseSums

0.7

Accurate Floating Point Sums and Products

2packages depend

29.8Kdownloads / year

20.3%test coverage

13/13checks pass

Overview

About

Maintained by Matthew FidlerFirst published 2017-11-146 releasesCRAN page ↗GitHub ↗

Most of the time floating point arithmetic does approximately the right thing. When adding sums or having products of numbers that greatly differ in magnitude, the floating point arithmetic may be incorrect. This package implements the Kahan (1965) sum doi:10.1145/363707.363723, Neumaier (1974) sum doi:10.1002/zamm.19740540106, pairwise-sum (adapted from 'NumPy', See Castaldo (2008) doi:10.1137/070679946 for a discussion of accuracy), and arbitrary precision sum (adapted from the fsum in 'Python' ; Shewchuk (1997) https://people.eecs.berkeley.edu/~jrs/papers/robustr.pdf). In addition, products are changed to long double precision for accuracy, or changed into a log-sum for accuracy.

Install

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

install.packages("PreciseSums", 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("nlmixr2/PreciseSums")

Development version from nlmixr2/PreciseSums. 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-precisesums

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-PreciseSums

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-PreciseSums

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

Health

CRAN checks

13OK

Slowest check: 1.9 min · r-devel-windows-x86_64

Code health

Yes

Tests · ratio 0.17

20.3%

Coverage · measured lines

100%

Documentation · exports

0

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 44%

Downloads

29.8K

CRAN downloads in the past year

Rank #2,867 · ~82/day · ~2.5K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.4K30 days

5.2K90 days

29.8K1 year

Compare downloads with other packages →

Also on908 r2u11 autocran19.9K conda_forge83 c2d4u

Repository

GitHub ↗ nlmixr2/precisesums

1Stars

0Forks

0Open issues

2Open PRs

2Releases

36Commits

1Contributors

License GPL-2.0 · 36 commits · Last activity 2026-06-15

Stars over time

2023-04-22 · 12026-07-07 · 1

Repository practices

Upstream repositoryBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/nlmixr2/precisesums on 2026-08-16.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

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

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (1)

R >= 3.2

Imports (0)

none

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

17indirect

ciuupi2 rxode2 rxode2

Code & Tests

People & History

People (7)

Maintainer (1)

Matthew Fidler

Author, Maintainer, Copyright holder

Authors (5)

Matthew Fidler

Author, Maintainer, Copyright holder

Raymond Hettinger

Copyright holder, Author

Jonathan Shewchuk

Copyright holder, Author

Nathaniel Smith

Copyright holder, Author

Julian Taylor

Copyright holder, Author

Copyright holders (7)

Matthew Fidler

Author, Maintainer, Copyright holder

Raymond Hettinger

Copyright holder, Author

Jonathan Shewchuk

Copyright holder, Author

Nathaniel Smith

Copyright holder, Author

Julian Taylor

Copyright holder, Author

NumPy Team

Copyright holder

Python Team

Copyright holder

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.7Latest
2024-09-18 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
0.6
2023-04-22 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.5
2022-04-22 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
0.4
2020-07-10 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
0.3
2018-04-12 · diff ↗
0.1
2017-11-14
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2017-11-14
Total releases: 6 / 9 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.2
Download size: 12 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("PreciseSums")

Format

Fidler, M., NumPy Team, Python Team, Hettinger, R., Shewchuk, J., Smith, N., & Taylor, J. (2024). PreciseSums: Accurate Floating Point Sums and Products (Version 0.7) [Computer software]. https://doi.org/10.32614/CRAN.package.PreciseSums

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 PreciseSums version 0.7 [Data set]. HJJB, LLC. Data release v2026-08-16. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-16, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →