Petersen: Estimators for Two-Sample Capture-Recapture Studies

A comprehensive implementation of Petersen-type estimators and its many variants for two-sample capture-recapture studies. A conditional likelihood approach is used that allows for tag loss; non reporting of tags; reward tags; categorical, geographical and temporal stratification; partial stratification; reverse capture-recapture; and continuous variables in modeling the probability of capture. Many examples from fisheries management are presented.

Version: 2024.6.1
Depends: R (≥ 2.10)
Imports: AICcmodavg, bbmle, BTSPAS,, ggplot2, MASS, Matrix, msm, numDeriv, plyr, reshape2, rlang, SPAS, stats, stringr, tidyr, utils
Suggests: knitr, rmarkdown, R.rsp
Published: 2024-05-31
DOI: 10.32614/CRAN.package.Petersen
Author: Carl Schwarz [aut, cre]
Maintainer: Carl Schwarz < at>
License: GPL-2
NeedsCompilation: no
Citation: Petersen citation info
Materials: README NEWS
CRAN checks: Petersen results


Reference manual: Petersen.pdf
Vignettes: PackageDocumentation


Package source: Petersen_2024.6.1.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): Petersen_2024.6.1.tgz, r-oldrel (arm64): Petersen_2024.6.1.tgz, r-release (x86_64): Petersen_2024.6.1.tgz, r-oldrel (x86_64): Petersen_2024.6.1.tgz
Old sources: Petersen archive


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