R Observatory: Metrics for expint version 0.2-1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

expint

0.2-1Package record

Exponential Integral and Incomplete Gamma Function

11packages dependsuggested by 3

200.6Kdownloads / year

81.3%test coverage

13/13flavors OK

Overview

About

Maintained by Vincent GouletCRAN page ↗GitLab ↗Issues ↗

The exponential integrals E_1(x), E_2(x), E_n(x) and Ei(x), and the incomplete gamma function G(a, x) defined for negative values of its first argument. The package also gives easy access to the underlying C routines through an API; see the package vignette for details. A test package included in sub-directory example_API provides an implementation. C routines derived from the GNU Scientific Library https://www.gnu.org/software/gsl/.

Changes in 0.2-1

The package vignette now contains an appendix providing more details on the fix introduced in version 0.2-0 for the computation of the incomplete gamma function for small negative values of a.

From inst/NEWS.Rd in the release

Install

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

install.packages("expint", 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("vigou3/expint")

Development version from vigou3/expint. 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-expint

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-expint

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-expint

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

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2-1

READMENoVignettesYes · 1 · dynamicNEWSYes · mentions 0.2-1Citation fileYes · software entry onlyWebsitenot declared in DESCRIPTION

Help pages: 3includes a package overview page
Examples that run: 100%2 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 100%

Vignettes (1)

expint user manual PDF

How these are measured

Downloads

200.6K

CRAN downloads in the past year

Rank #961 · ~550/day · ~16.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

14.4K30 days

41.9K90 days

200.6K1 year

Compare downloads with other packages →

Also on2.6K r2u6 autocran4.8K conda_forge160 c2d4u

How downloads are counted

Repository

gitlab.com/vigou3/expint ↗

1Stars

2Forks

0Open issues

1Open PRs

0Releases

175Commits

1Commit identities

175 commits · Last activity 2026-01-26

Responsiveness

not measured

How these are measured

PracticesBeta

Repository gitlab.com/vigou3/expint is linked, but repository-practices checks have not run for it yet. Checks are GitHub-only for now.

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

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 3.3.0

Imports (0)

none

LinkingTo (0)

none

Suggests (2)

gsl pracma

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

11direct

49indirect

Imports 11 · LinkingTo 1

Suggested by 3

Show all 14 packagesHide all 14 packages

Depends, Imports or LinkingTo, most downloaded first

actuar frailtyEM Rdistance extrafrail bbreg Temporal DTS ccrtm BoundEdgeworth new.dist SAME

Suggests, most downloaded first

blme mev mvpd

How these are counted

Code & Tests

People & History

People (8)

Vincent Goulet

Maintainer since 0.1-0 (2016), Author

R Core Team

Author · added in 0.2-0

Parts of the R to C interface

R Foundation

Author · added in 0.2-0

Parts of the R to C interface

Robert Gentleman

Author · added in 0.1-2

Parts of the R to C interface

Brian Gough

Author · added in 0.1-2

Original GSL code

Ross Ihaka

Author · added in 0.1-2

Parts of the R to C interface

Gerard Jungman

Author · added in 0.1-1

Original GSL code

Jeffrey A. Ryan

Author · added in 0.1-2

Package API

Releases (12)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.2-1Latest
record
2026-01-27 · current release · diff ↗
0.2-0
record
2026-01-19 · diff ↗
0.1-9
record
2025-11-08 · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.1-8
record
2022-10-28 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.1-7
record
2022-03-28 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.1-6
record
2019-12-04 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.1-5
record
2018-06-29 · diff ↗
R
R 3.5.0 released · 2018-04-23

Show 7 earlier eventsHide 7 earlier events

0.1-4
record
2017-05-06 · diff ↗
R
R 3.4.0 released · 2017-04-21
0.1-3
record
2017-01-10 · diff ↗
0.1-2
record
2016-12-23 · diff ↗
0.1-1
record
2016-12-23 · diff ↗
0.1-0
record
2016-12-20
R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2016-12-20
Total releases: 12 / 10 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.3.0
Download size: 144 KB

Appears in task views

Numerical Mathematics

Cite

Cite this package

Run in R for the authors' entry:

citation("expint")

The package provides a citation file, so citation() returns the authors' own entry.

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 expint version 0.2-1 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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