R Observatory: Metrics for sprex version 1.4.3

Balamuta, James Joseph

sprex

1.4.3

Species Richness and Extrapolation

0packages depend

3Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Eric ArcherFirst published 2015-02-256 releasesCRAN page ↗GitHub ↗

Functions for calculating species richness for rarefaction and extrapolation, primarily non-parametric species richness such as jackknife, Chao1, and ACE. Also available are functions for plotting species richness and extrapolation curves, and computing standard diversity and entropy indices.

Install

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

install.packages("sprex", 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("SWFSC/sprex")

Development version from SWFSC/sprex. 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-sprex

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-sprex

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-sprex

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

Health

CRAN checks

13OK

Slowest check: 1.1 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

3

Dependencies · direct

Check history

OK2026-08-04
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 158 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 91%
Return-value docs: 100%
References docs: 54%

Downloads

3K

CRAN downloads in the past year

Rank #15,206 · ~8/day · ~252/mo

Releases R versions

Daily download trend is not available in this view yet.

15430 days

67490 days

3K1 year

Compare downloads with other packages →

Also on91 r2u3 autocran

Repository

GitHub ↗ swfsc/sprex

1Stars

2Forks

0Open issues

1Open PRs

1Releases

51Commits

4Contributors

51 commits · Last activity 2025-03-25

Stars over time

2023-07-29 · 12026-07-07 · 1

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/swfsc/sprex on 2026-08-03.

Continuous integration (2)

GitHub ActionsAppVeyor

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (3)

ggplot2statsswfscMisc

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (1)

Maintainer (1)

Eric Archer

Author, Maintainer

Authors (1)

Eric Archer

Author, Maintainer

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
1.4.3Latest
2025-06-10 · current release · diff ↗
unarchivedReturned to CRAN
2025-06-10
archivedRemoved from CRAN
2025-05-15
requires archived package 'kknn'
R
R 4.5.0 released · 2025-04-11
1.4.2
2025-03-25 · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
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
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
1.4.1
2016-04-16 · diff ↗

Show 5 earlier events

1.4
2016-04-11 · diff ↗
1.1
2015-04-18 · diff ↗
R
R 3.2.0 released · 2015-04-16
1.0
2015-02-25
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2015-02-25
Total releases: 6 / 11 yrs
License: GNU General Public License
Minimum R: ≥ 4.1.0
Bundled data: 0.4 KB / 2 files
Download size: 16 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Start here. This is the citation for the package itself.

citation("sprex")

CRAN DOI

https://doi.org/10.32614/CRAN.package.sprex

BibTeX, derived from DESCRIPTION

@Manual{sprex,
  title  = {sprex: Species Richness and Extrapolation},
  author = {Archer, Eric},
  year   = {2025},
  note   = {R package version 1.4.3},
  doi    = {10.32614/CRAN.package.sprex},
  url    = {https://CRAN.R-project.org/package=sprex}
}

Derived from the package DESCRIPTION, not from a citation file the authors wrote. If they publish one later, prefer it.

This is the citation for the package. It is not a citation for the R Observatory.

Cite this page

Use this when the claim is about a measurement on this page.

BibTeX

@misc{robservatorysprex,
  author    = {Balamuta, James Joseph},
  title     = {{R} {Observatory}: Metrics for {sprex} version 1.4.3},
  year      = {2026},
  publisher = {HJJB, LLC},
  url       = {https://r-observatory.thecoatlessprofessor.com/packages/sprex},
  note      = {Data set. Data release v2026-08-05}
}

APA

Balamuta, J. J. (2026). R Observatory: Metrics for sprex version 1.4.3 [Data set]. HJJB, LLC. Data release v2026-08-05. https://r-observatory.thecoatlessprofessor.com/packages/sprex

RIS

TY  - DATA
AU  - Balamuta, James Joseph
TI  - R Observatory: Metrics for sprex version 1.4.3
PY  - 2026
PB  - HJJB, LLC
N1  - Data release v2026-08-05
UR  - https://r-observatory.thecoatlessprofessor.com/packages/sprex
ER  -

In prose

These package metrics were obtained from the R Observatory (Balamuta, 2026), data release v2026-08-05, https://r-observatory.thecoatlessprofessor.com/packages/sprex.

Bound to data release v2026-08-05, which is what makes the numbers on this page reproducible. See how to cite.

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