Overview | Example data | Step 1: Format the data | Handling multiple recaptures | NAs and data filtering | Step 2: Fit growth models | Key arguments | Basic usage | Step 3: Examine the output | Parameters | Sizes at ages | Step 4: Compare models | Step 5: Additional utility functions | Predicted size at a given age | Predicted age at a given size | Predicted size after a time interval | Further model interrogations | Comparing observed and predicted sizes at recapture | Comparing observed and predicted sizes and ages for individuals with known-age data | References
Package: MRgrowth 0.1.2
MRgrowth: Mark-Recapture Growth Models
Researchers often need to calculate body-size growth rates for individuals that do not have associated age data. These growth rates are based on mark-recapture data where an individual was captured and measured at time 1 then recaptured and measured at time 2. The sizes at each time and amount of time between captures can be used to calculate growth rates. 'MRgrowth' follows the approach in Edmonds et al. (2021) <doi:10.1371/journal.pone.0259978> and provides functions to calculate growth using three formulas, the Faben's reformulation of the von Bertalanffy formula, the Gompertz formula, and a logistic formula.
Authors:
MRgrowth_0.1.2.tar.gz
MRgrowth_0.1.2.zip(r-4.7-any)MRgrowth_0.1.2.zip(r-4.6-any)MRgrowth_0.1.2.zip(r-4.5-any)
MRgrowth_0.1.2.tgz(r-4.6-any)MRgrowth_0.1.2.tgz(r-4.5-any)
MRgrowth_0.1.2.tar.gz(r-4.7-any)MRgrowth_0.1.2.tar.gz(r-4.6-any)
MRgrowth_0.1.2.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION
card.svg |card.png
MRgrowth/json (API)
| # Install 'MRgrowth' in R: |
| install.packages('MRgrowth', repos = c('https://donaldtmcknight.r-universe.dev', 'https://cloud.r-project.org')) |
Datasets:
- MRdata - Example mark-recapture data set
This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.
Last updated from:cb8a5d51f4. Checks:9 OK. Indexed: yes.
| Target | Result | Time | Files | Syslog |
|---|---|---|---|---|
| linux-devel-x86_64 | OK | 115 | ||
| source / vignettes | OK | 169 | ||
| linux-release-x86_64 | OK | 115 | ||
| macos-release-arm64 | OK | 86 | ||
| macos-oldrel-arm64 | OK | 87 | ||
| windows-devel | OK | 73 | ||
| windows-release | OK | 81 | ||
| windows-oldrel | OK | 64 | ||
| wasm-release | OK | 102 |
Exports:age.at.sizecalc.growthformat.datagompertzlogisticsize.at.agevb
Dependencies:
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| Age at size | age.at.size |
| Calculate growth curves | calc.growth |
| Format data | format.data |
| Gompertz growth | gompertz |
| Logistic growth | logistic |
| Example mark-recapture data set | MRdata |
| Size at age | size.at.age |
| von Bertalanffy growth | vb |
