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secr

5.4.3

Spatially Explicit Capture-Recapture

6packages depend
29.4Kdownloads / year
32.0%test coverage
11/13checks pass

Overview

About
Maintained by Murray EffordFirst published 2010-03-1187 releasesCRAN page ↗GitHub ↗

Functions to estimate the density and size of a spatially distributed animal population sampled with an array of passive detectors, such as traps, or by searching polygons or transects. Models incorporating distance-dependent detection are fitted by maximizing the likelihood. Tools are included for data manipulation and model selection.

Install

Health

CRAN checks
2NOTE11OK
Failing flavors
  • NOTE r-devel-linux-x86_64-debian-clang
  • NOTE r-devel-linux-x86_64-debian-gcc
Slowest check: 26.7 min · r-oldrel-windows-x86_64
Code health
Yes
Tests · ratio 0.02
32.0%
Coverage · measured lines
100%
Documentation · exports
19
Dependencies · direct
Check history
  • NOTE2026-07-11
    12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • OK2026-05-20
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • ERROR2026-05-19
    12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
  • OK2026-04-25
    12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • ERROR2026-03-30
    11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
Show 1 earlier snapshots
  • WARNING2026-03-10
    10 OK · 3 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation
READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo
Examples that run
75%
Documented parameters
97%
Return-value docs
97%
References docs
46%

Downloads

29.4K
CRAN downloads in the past year
Rank #3,026 · ~81/day · ~2.5K/mo
Daily download trend is not available in this view yet.
1K30 days
4.3K90 days
29.4K1 year
Compare downloads with other packages →
Also on637 r2u17 autocran111 c2d4u

Repository

Repository
7Stars
2Forks
6Open issues
0Open PRs
0Releases
969Commits
2Contributors
969 commits · Last activity 2026-08-16 · +16.7% stars, 30d

Stars over time

2025-08-12 · 52026-08-14 · 7

Repository practices

Upstream repositoryBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/murrayefford/secr on 2026-08-16.

Continuous integration (1)
GitHub Actions
How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies
24 external dependencies (excludes base and recommended)
Depends (2)
R >= 3.5.0methods
Imports (18)
secrfuncabindgraphicsgrDevicesMASSmgcvmvtnormnlmeparallelrasterRcppRcppParallelsfstatsstringrterratoolsutils
LinkingTo (3)
Enhances (0)
none
Reverse dependencies
6direct
0indirect

Code & Tests

People & History

People (4)
Maintainer (1)
Author, Maintainer
Authors (1)
Author, Maintainer
Contributors (3)
Contributor · added in 5.0.0
Contributor · added in 4.6.1
Contributor · added in 4.6.0
Package Timeline

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

  • 5.4.3Latest
    2026-05-27 · current release · diff ↗
  • R
    R 4.6.0 released · 2026-04-24
  • 5.4.2
    2026-02-24 · diff ↗
  • 5.4.1
    2026-01-11 · diff ↗
  • 5.3.0
    2025-09-27 · diff ↗
  • 5.2.4
    2025-06-13 · diff ↗
  • R
    R 4.5.0 released · 2025-04-11
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    2025-01-24 · diff ↗
  • 5.1.0
    2024-11-04 · diff ↗
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    2024-08-22 · diff ↗
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  • R
    R 4.4.0 released · 2024-04-24
  • 4.6.6
    2024-02-29 · diff ↗
Show 91 earlier events
  • 4.6.5
    2024-02-17 · diff ↗
  • 4.6.4
    2023-10-18 · diff ↗
  • 4.6.1
    2023-07-11 · diff ↗
  • 4.6.0
    2023-05-23 · diff ↗
  • R
    R 4.3.0 released · 2023-04-21
  • 4.5.10
    2023-03-10 · diff ↗
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    2022-11-29 · diff ↗
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    2022-08-15 · diff ↗
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    2022-05-31 · diff ↗
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    2022-04-22 · diff ↗
  • R
    R 4.2.0 released · 2022-04-22
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    2022-01-18 · diff ↗
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    2022-01-06 · diff ↗
  • 4.4.8
    2021-11-09 · diff ↗
  • 4.4.7
    2021-10-18 · diff ↗
  • 4.4.5
    2021-07-12 · diff ↗
  • 4.4.4
    2021-06-01 · diff ↗
  • R
    R 4.1.0 released · 2021-05-18
  • 4.4.1
    2021-04-30 · diff ↗
  • 4.3.3
    2020-12-11 · diff ↗
  • 4.3.1
    2020-09-01 · diff ↗
  • 4.3.0
    2020-07-14 · diff ↗
  • R
    R 4.0.0 released · 2020-04-24
  • 4.2.2
    2020-04-09 · diff ↗
  • 4.2.0
    2020-02-22 · diff ↗
  • 4.1.0
    2019-12-17 · diff ↗
  • 4.0.2
    2019-11-11 · diff ↗
  • 3.2.1
    2019-06-03 · diff ↗
  • R
    R 3.6.0 released · 2019-04-26
  • 3.2.0
    2019-01-25 · diff ↗
  • 3.1.8
    2018-11-19 · diff ↗
  • 3.1.7
    2018-10-04 · diff ↗
  • 3.1.6
    2018-05-14 · diff ↗
  • R
    R 3.5.0 released · 2018-04-23
  • 3.1.5
    2018-02-25 · diff ↗
  • 3.1.3
    2017-12-03 · diff ↗
  • 3.1.0
    2017-09-20 · diff ↗
  • 3.0.1
    2017-05-03 · diff ↗
  • R
    R 3.4.0 released · 2017-04-21
  • 2.10.4
    2016-12-04 · diff ↗
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    2016-05-13 · diff ↗
  • R
    R 3.3.0 released · 2016-05-03
  • 2.10.2
    2016-01-09 · diff ↗
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    2015-12-07 · diff ↗
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    2015-06-16 · diff ↗
  • R
    R 3.2.0 released · 2015-04-16
  • 2.9.4
    2015-03-25 · diff ↗
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    2015-01-11 · diff ↗
  • 2.9.2
    2014-11-26 · diff ↗
  • 2.9.1
    2014-11-18 · diff ↗
  • 2.9.0
    2014-09-22 · diff ↗
  • 2.8.2
    2014-04-30 · diff ↗
  • R
    R 3.1.0 released · 2014-04-10
  • 2.8.1
    2014-04-03 · diff ↗
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    2014-03-31 · diff ↗
  • 3.0.3
    2013-10-30 · diff ↗
  • 2.7.0
    2013-10-30 · diff ↗
  • 3.0.2
    2013-06-28 · diff ↗
  • 2.6.1
    2013-06-28 · diff ↗
  • 2.6.0
    2013-06-12 · diff ↗
  • R
    R 3.0.0 released · 2013-04-03
  • 2.15.3
    2013-01-24 · diff ↗
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    2013-01-23 · diff ↗
  • 2.4.0
    2012-11-05 · diff ↗
  • 2.15.1
    2012-05-15 · diff ↗
  • 2.3.2
    2012-05-15 · diff ↗
  • R
    R 2.15.0 released · 2012-03-30
  • 2.3.1
    2011-12-20 · diff ↗
  • 2.14.1
    2011-12-16 · diff ↗
  • 2.3.0
    2011-11-20 · diff ↗
  • R
    R 2.14.0 released · 2011-10-31
  • 2.2.0
    2011-10-02 · diff ↗
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    2011-10-01 · diff ↗
  • 2.13.1
    2011-06-17 · diff ↗
  • 2.1.0
    2011-06-17 · diff ↗
  • R
    R 2.13.0 released · 2011-04-13
  • 2.12.2
    2011-02-21 · diff ↗
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    2011-02-21 · diff ↗
  • 1.5.1
    2010-12-03 · diff ↗
  • 2.12.1
    2010-12-02 · diff ↗
  • R
    R 2.12.0 released · 2010-10-15
  • 1.4.1
    2010-08-30 · diff ↗
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    2010-08-29 · diff ↗
  • 2.11.1
    2010-05-07 · diff ↗
  • 1.4.0
    2010-05-07 · diff ↗
  • R
    R 2.11.0 released · 2010-04-22
  • 2.11.0
    2010-03-11 · diff ↗
  • 1.3.0
    2010-03-11
  • R
    R 2.10.0 released · 2009-10-26

Package metadata

First published
2010-03-11
Total releases
87 / 16 yrs
License
GPL (>= 2) OSI
Minimum R
≥ 3.5.0
Bundled data
126 KB / 11 files
Download size
1.1 MB
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("secr")
Efford, M., Choo, Y. R., Fletcher, D., & Jund, P. (2026). secr: Spatially Explicit Capture-Recapture (Version 5.4.3) [Computer software]. https://doi.org/10.32614/CRAN.package.secr

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.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for secr version 5.4.3 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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