# caribou 1.1-1 (CRAN)

Estimation of Caribou Abundance Based on Radio Telemetry Data

[Record of 1.1-1](/cran/caribou/v/1.1-1.md) | Compare: [With 1.1](/cran/caribou/compare/1.1...1.1-1.md), [With another package](/compare/caribou.md#add), [Downloads](/downloads/compare/caribou.md#add) | [Licences](/cran/caribou/licences.md) | [SBOM](/cran/caribou/sbom.md)

Install from CRAN: `install.packages("caribou")`

Also from:

- r2u (Ubuntu binaries): `sudo apt install r-cran-caribou` _Listed from recorded download activity on this channel, not from a live index, so read it as last known. Bioconductor packages are named r-bioc-<name> there._
- Fedora COPR (iucar/cran): `sudo dnf install R-CRAN-caribou` _A rebuild of what CRAN lists, so it can lag CRAN by a rebuild._
- autoCRAN (openSUSE): `sudo zypper install R-caribou` _Listed from recorded download activity on this channel, not from a live index, so read it as last known._

- CRAN checks: All OK (13 platforms)
- CRAN 30-day downloads: 245 (down 35.2% on the 30 days before, the worse direction)
- Dependent packages: 0 (none suggest it)
- Test coverage: No tests (nothing to run)
- Advisories: None known

## About

[Method](/about/licenses.md)

Estimation of population size of migratory caribou herds based on large scale aggregations monitored by radio telemetry. It implements the methodology found in the article by Rivest et al. (1998) about caribou abundance estimation. It also includes a function based on the Lincoln-Petersen Index as applied to radio telemetry data by White and Garrott (1990).

- Maintainer: Louis-Paul Rivest
- Licence: [GPL-2](/licences/GPL-2.md)
- Latest release: 13 Apr 2022
- First release: 18 Nov 2011

- [CRAN page](https://cran.r-project.org/package=caribou)
- [Source of every release](https://github.com/cran/caribou)

[Compare with another package](/compare/caribou.md#add)

**More details**

- Releases: 4
- Needs compilation: No
- Date: 2022-04-13
- LazyData: true

**Task views (2)**

- [Handling and Analyzing Spatio-Temporal Data](/topics/cran/SpatioTemporal.md)
- [Processing and Analysis of Tracking Data](/topics/cran/Tracking.md)

**Subjects (1) [Method](/about/subjects.md#found)**

- [Kernel density and smoothing](/topics/subjects/kernel-density-estimation.md)

**Cite**

#### Package

Run in R for the authors' preferred citation:

`citation("caribou")`

APA: Rivest, L., Baillargeon, S., Couturier, S., & Crepeau, H. (2022). caribou: Estimation of Caribou Abundance Based on Radio Telemetry Data (Version 1.1-1) [Computer software]. https://doi.org/10.32614/CRAN.package.caribou

BibTeX:

```
@Manual{caribou,
  title  = {caribou: Estimation of Caribou Abundance Based on Radio Telemetry Data},
  author = {Rivest, Louis-Paul and Baillargeon, Sophie and Couturier, Serge and Crepeau, Helene},
  year   = {2022},
  note   = {R package version 1.1-1},
  doi    = {10.32614/CRAN.package.caribou},
  url    = {https://CRAN.R-project.org/package=caribou}
}
```

This package has no citation file, so `citation()` returns this entry built from `DESCRIPTION`.

#### 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 caribou version 1.1-1 [Data set]. HJJB, LLC. Data release v2026-10-28. https://doi.org/10.5281/zenodo.21843040

BibTeX:

```
@misc{robservatorycaribou,
  author    = {Balamuta, James Joseph},
  title     = {{R} {Observatory}: Metrics for {caribou} version 1.1-1},
  year      = {2026},
  publisher = {HJJB, LLC},
  doi       = {10.5281/zenodo.21843040},
  url       = {https://r-observatory.thecoatlessprofessor.com/packages/caribou},
  note      = {Data set. Data release v2026-10-28}
}
```

From data release v2026-10-28, which the citation names so these numbers can be found later.

## Health

[Method](/about/checks-health.md)

All 13 check platforms pass.

13 CRAN platforms: 13 OK.

Platforms now:

- r-devel-linux-x86_64-debian-clang: OK
- r-devel-linux-x86_64-debian-gcc: OK
- r-devel-linux-x86_64-fedora-clang: OK
- r-devel-linux-x86_64-fedora-gcc: OK
- r-devel-windows-x86_64: OK
- r-oldrel-macos-arm64: OK
- r-oldrel-macos-x86_64: OK
- r-oldrel-windows-x86_64: OK
- r-patched-linux-x86_64: OK
- r-release-linux-x86_64: OK
- r-release-macos-arm64: OK
- r-release-macos-x86_64: OK
- r-release-windows-x86_64: OK

#### Over time

No change since 5 Aug 2026

**As a list (3)**

| Changed | Worst status | OK | Notes | Warnings | Errors |
| --- | --- | ---: | ---: | ---: | ---: |
| 5 Aug 2026 | OK | 13 | 0 | 0 | 0 |
| 1 Aug 2026 | Note | 12 | 1 | 0 | 0 |
| 10 Mar 2026 | OK | 14 | 0 | 0 | 0 |

Since March 2026

[Check results on CRAN](https://cran.r-project.org/web/checks/check_results_caribou.html)

## Downloads

[Method](/about/downloads.md)

- Downloads in the last 30 days: 255 (It is the sum of 4 channels: CRAN, r2u, autoCRAN and c2d4u.)

CRAN alone: rank among CRAN packages, last 30 days: 18,318 of 26,530.

| Channel | Downloads in the last 30 days | In the total | Rank in that channel | Change |
| --- | ---: | --- | --- | --- |
| CRAN | 245 | yes | 18,318 of 26,530 | down 35.2% on the 30 days before, the worse direction |
| r2u | 3 | yes | 11,992 of 30,526 | down 40% on the 30 days before, the worse direction |
| autoCRAN | 7 | yes | 6,587 of 29,212 | down 22.2% on the 30 days before, the worse direction |
| c2d4u | 0 | yes | 6,270 of 7,575 | down 100% on the 30 days before, the worse direction |

Other windows: [Last 90 days](/cran/caribou.md?win=90d#downloads), [Last 365 days](/cran/caribou.md?win=365d#downloads), [All time](/cran/caribou.md?win=all#downloads).

To leave channels out of the total, name them in the address, joined by dots: `?off=autocran.c2d4u`.

#### Over time

Downloads over time, the last 12 whole months:

| Month | CRAN | r2u | autoCRAN | c2d4u | Sum |
| --- | ---: | ---: | ---: | ---: | ---: |
| Oct 2025 | 409 | 5 | no figure | 6 | 420 |
| Nov 2025 | 300 | 4 | no figure | 4 | 308 |
| Dec 2025 | 281 | 9 | no figure | 8 | 298 |
| Jan 2026 | 257 | 5 | no figure | 6 | 268 |
| Feb 2026 | 286 | 7 | no figure | 10 | 303 |
| Mar 2026 | 402 | 5 | no figure | 13 | 420 |
| Apr 2026 | 304 | 17 | no figure | 24 | 345 |
| May 2026 | 264 | 11 | no figure | 1 | 276 |
| Jun 2026 | 298 | no figure | no figure | no figure | 298 |
| Jul 2026 | 217 | 33 | no figure | 8 | 258 |
| Aug 2026 | 250 | 6 | 20 | no figure | 276 |
| Sep 2026 | 372 | no figure | 7 | no figure | 379 |

First day on record: CRAN 10 Oct 2012, r2u 22 May 2022, autoCRAN 4 Jul 2026, c2d4u 22 Sep 2019 (no longer updated).

Every channel here counts downloads, so the channels can be stacked and summed for one period. Each channel counts in its own way and covers a different span of years, so read a sum as a rough total, and read a rise where a channel begins as that channel starting, not as growth.

Weeks start on Monday. A first or last week or month that the channel does not cover in full is left out, so every point is a whole period.

Days with no record add nothing to their week or month. For a little-used package that is usually a day with no downloads, but it can also be a gap in collection.

[Compare downloads](/downloads/compare/caribou.md#add)

## Dependencies

[Method](/about/reverse-dependencies.md)

- Needs: 0
- Dependent packages: 0
- Suggested by: 0

## Code

[Method](/about/code-metrics.md)

Selected function: `valid.one`

- Kind: Internal R function
- File: R/internal.r, line 5
- Lines: 7
- Complexity: 3

Called by 2: [`abundance`](/cran/caribou.md?fn=abundance&view=focus#code), [`petersen`](/cran/caribou.md?fn=petersen&view=focus#code)

Calls 0: nothing else in this package

Paths: 2 steps each way.

Called by 2:

- [`abundance`](/cran/caribou.md?fn=abundance&view=focus#code)
- [`petersen`](/cran/caribou.md?fn=petersen&view=focus#code)

Calls 0:

- nothing else in this package

The open file in the files map is `R/internal.r`.

- Functions: 1
- Lines: 7
- Calls that stay inside it: 0
- Calls to other files: 0
- Calls from other files: 2, from 2

Called from: `R/abundance.R` (1 call), `R/petersen.R` (1 call)

| Function in internal.r | Calls in other files |
| --- | --- |
| [`valid.one`](/cran/caribou.md?fn=valid.one&view=focus#code) selected | nothing outside this file |


The whole package has 5 function names in 3 files and 2 calls between them. Most calls between files: `R/abundance.R` and `R/internal.r` (1 call), `R/internal.r` and `R/petersen.R` (1 call).

Graph: the whole call graph has 3 function names that take part in a call and 2 calls between them, set out in 2 layers with callers before what they call. 2 function names have no calls and are left out. Called by the most functions: `valid.one` (2), `abundance` (0), `petersen` (0). Calling the most functions: `abundance` (1), `petersen` (1), `valid.one` (0).

Most connected functions: [`valid.one`](/cran/caribou.md?fn=valid.one&view=focus#code) 2, [`abundance`](/cran/caribou.md?fn=abundance&view=focus#code) 1, [`petersen`](/cran/caribou.md?fn=petersen&view=focus#code) 1

To select another function, add ?fn=NAME to this address.

The call graph also has an address of its own: /cran/caribou/graph.md?fn=valid.one&view=focus

- Functions: 5
- Public exports: 2
- Lines of R code: 364
- Median complexity: 6

**Functions (5)**

| Function (sorted, low to high) | Kind | File | Lines | Complexity |
| --- | --- | --- | ---: | ---: |
| [`abundance`](/cran/caribou.md?fn=abundance#code) | Public | R/abundance.R | 254 | 33 |
| [`petersen`](/cran/caribou.md?fn=petersen#code) | Public | R/petersen.R | 33 | 6 |
| [`print.abundance`](/cran/caribou.md?fn=print.abundance#code) | Internal | R/abundance.R | 26 | 6 |
| [`print.petersen`](/cran/caribou.md?fn=print.petersen#code) | Internal | R/petersen.R | 21 | 2 |
| [`valid.one`](/cran/caribou.md?fn=valid.one#code) | Internal | R/internal.r | 7 | 3 |

This page lists 1 to 5 of 5 functions.

**Size and composition**

#### Lines by kind (795)

| Kind | Lines | Share |
| --- | ---: | ---: |
| R code | 364 | 46% |
| Documentation | 431 | 54% |

#### Lines by language

| Language | Lines | Share |
| --- | ---: | ---: |
| Rd | 431 | 54% |
| R | 364 | 46% |

Languages are counted from file extensions.

- Files: 22
- R functions: 5
- Object systems: S3: 2 methods

**Complexity**

- Median: 6
- Mean: 10
- Highest: 33
- Median lines per function: 26

_About complexity: Cyclomatic complexity counts the independent paths through a function: 1 is a straight line, higher is harder to test. R functions only._

**Call graph figures**

- R functions: 5
- Calls: 2
- Unconnected: 2
- Groups: 1

**Growth (4 releases)**

Total lines by release: from 168 (on 17 Nov 2011) to 795 (on 13 Apr 2022). The lowest is 168 and the highest is 795.

**Release changes**

[Both releases side by side](/cran/caribou/compare/1.1...1.1-1.md)

**1.1 to 1.1-1**, 11 Jun 2012 to 13 Apr 2022

- Files changed: 22
- Lines added: 65
- Lines deleted: 54
- Exports: No change

**Changed measures (13)**

| Measure | Subject | Before | After |
| --- | --- | ---: | ---: |
| Total lines | Structure | 442 | 795 |
| Lines of R code | Structure | 11 | 364 |
| R functions | Languages | 1 | 5 |
| Mean complexity | Complexity | 3 | 10 |
| Highest complexity | Complexity | 3 | 33 |
| Median complexity | Complexity | 3 | 6 |
| Lines per function (mean) | Complexity | 7 | 68.2 |
| Functions (nodes) | Call graph | 1 | 5 |
| Call edges | Call graph | 0 | 2 |
| Most connections on one function | Call graph | 0 | 2 |
| Mean connections | Call graph | 0 | 0.8 |
| Functions with no connections | Call graph | 1 | 2 |
| Separate groups | Call graph | 0 | 1 |

**Most changed files (12 of 22)**

| File | Lines added | Lines deleted |
| --- | ---: | ---: |
| `DESCRIPTION` | 23 | 18 |
| `MD5` | 14 | 14 |
| `man/caribou.package.Rd` | 8 | 6 |
| `inst/NEWS.Rd` | 7 | 1 |
| `man/abundance.Rd` | 4 | 2 |
| `man/petersen.Rd` | 4 | 2 |
| `R/abundance.R` | 2 | 2 |
| `R/petersen.R` | 2 | 2 |
| `NAMESPACE` | 1 | 1 |
| `man/BEH00.Rd` | 0 | 1 |
| `man/GRH01.Rd` | 0 | 1 |
| `man/GRH10.Rd` | 0 | 1 |

## Tests

[Method](/about/coverage.md)

The package was built and has no tests to run.

- Lines of tests: 0
- Exports named in tests: 0%

**Test suite**

- Has tests: No
- Test frameworks: No tests in this release
- Test lines per line of code: 0

## Documentation

[Method](/about/code-metrics.md)

- Exports documented: 100%
- Arguments documented: 100%
- Return value documented: 100%
- Help pages with examples: 88.9%
- Examples run in checks: 100%

**Other documentation**

- README: No
- Release notes file: Yes
- Help pages: 9
- Lines of documentation: 431

## Datasets

[Method](/about/objects.md)

| Dataset | Size |
| --- | --- |
| [BEH00](/cran/caribou/data/BEH00.md), Bluenose-East Caribou Herd 2000 Data | 16 × 2 |
| [GRH01](/cran/caribou/data/GRH01.md), George River Herd 2001 Data | 27 × 2 |
| [GRH10](/cran/caribou/data/GRH10.md), George River Herd 2010 Data | 13 × 2 |
| [GRH93](/cran/caribou/data/GRH93.md), George River Herd 1993 Data | 28 × 2 |
| [LRH01](/cran/caribou/data/LRH01.md), Leaf River Herd 2001 Data | 17 × 2 |
| [WAH11](/cran/caribou/data/WAH11.md), Western Arctic Herd 2011 Data | 10 × 2 |

## People

[Method](/about/author-identity.md)

- [Louis-Paul Rivest](/people/Louis-Paul+Rivest.md): Maintainer since 1.1-1 (2022), previously Sophie Baillargeon (0.3-0 to 1.1), author
- [Sophie Baillargeon](/people/Sophie+Baillargeon.md): Author
- [Serge Couturier](/people/Serge+Couturier.md): Contributor
- [Helene Crepeau](/people/Helene+Crepeau.md): Author

## Repository

[Method](/about/repo-signals.md#figures)

No repository on record

## History

[Method](/about/archive.md)

The line runs from the first release of caribou on 18 Nov 2011 to 28 Oct 2026 and marks all 4 of its releases.

| Version | Released | R | Events |
| --- | --- | ---: | --- |
| [1.1-1](/cran/caribou/v/1.1-1.md) current | 13 Apr 2022 | 4.1.3 | Maintainer: Louis-Paul Rivest |
| [1.1](/cran/caribou/v/1.1.md) | 11 Jun 2012 | 2.15.0 |  |
| [1.0](/cran/caribou/v/1.0.md) | 25 Jan 2012 | 2.14.1 |  |
| [0.3-0](/cran/caribou/v/0.3-0.md) | 18 Nov 2011 | 2.14.0 |  |

**Release notes (1.1-1)**

- R CMD check note fixed, maintainership transfer and documentation improvement.

---

R Observatory is independent of the R Project, CRAN and Bioconductor. The same page for people is at /cran/caribou, and every address is listed at /llms.txt.