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unmarked  

Models for Data from Unmarked Animals
View on CRAN: Click here


Download and install unmarked package within the R console
Install from CRAN:
install.packages("unmarked")

Install from Github:
library("remotes")
install_github("cran/unmarked")

Install by package version:
library("remotes")
install_version("unmarked", "1.5.1")



Attach the package and use:
library("unmarked")
Maintained by
Ken Kellner
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2010-01-21
Latest Update: 2025-02-10
Description:
Fits hierarchical models of animal abundance and occurrence to data collected using survey methods such as point counts, site occupancy sampling, distance sampling, removal sampling, and double observer sampling. Parameters governing the state and observation processes can be modeled as functions of covariates. References: Kellner et al. (2023) <doi:10.1111/2041-210X.14123>, Fiske and Chandler (2011) <doi:10.18637/jss.v043.i10>.
How to cite:
Ken Kellner (2010). unmarked: Models for Data from Unmarked Animals. R package version 1.5.1, https://cran.r-project.org/web/packages/unmarked. Accessed 25 Aug. 2026.
Previous versions and publish date:
(2026-08-20 07:24), 0.8-1 (2010-01-21 17:28), 0.8-3 (2010-03-04 07:07), 0.8-5 (2010-03-17 09:35), 0.8-6 (2010-04-08 17:52), 0.8-7 (2010-09-16 08:37), 0.8-8 (2010-11-21 10:16), 0.8-9 (2010-12-23 19:17), 0.9-0 (2011-01-24 20:09), 0.9-1 (2011-08-04 18:30), 0.9-2 (2011-08-19 01:55), 0.9-3 (2011-10-27 21:35), 0.9-4 (2011-12-20 17:42), 0.9-5 (2012-02-10 09:36), 0.9-7 (2012-03-29 23:00), 0.9-8 (2012-06-25 17:48), 0.9-9 (2012-10-10 21:42), 0.10-0 (2013-04-16 18:14), 0.10-1 (2013-06-12 17:35), 0.10-2 (2013-08-07 07:06), 0.10-3 (2014-01-14 00:38), 0.10-4 (2014-04-28 21:14), 0.10-5 (2015-01-23 16:19), 0.10-6 (2015-01-27 20:56), 0.11-0 (2015-09-03 10:19), 0.12-0 (2017-04-16 21:22), 0.12-2 (2017-05-15 07:27), 0.12-3 (2019-02-05 18:00), 0.13-0 (2019-11-12 20:10), 0.13-1 (2019-12-16 18:30), 0.13-2 (2020-03-04 15:00), 1.0.0 (2020-05-04 13:40), 1.0.1 (2020-07-02 19:10), 1.1.0 (2021-05-06 16:10), 1.1.1 (2021-05-27 12:50), 1.2.3 (2022-04-26 10:40), 1.2.5 (2022-05-13 11:10), 1.3.1 (2023-06-29 23:30), 1.3.2 (2023-07-08 13:10), 1.4.1 (2024-01-09 11:20), 1.4.2 (2024-08-29 01:10), 1.4.3 (2024-09-02 00:00), 1.5.0 (2025-02-11 00:50), 1.5.1 (2025-09-27 00:40)
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Functions, R codes and Examples using the unmarked R package
Some associated functions: MesoCarnivores . SE-methods . SSE . Switzerland . birds . coef-methods . colext . computeMPLElambdas . confint-methods . crossVal . crossbill . cruz . csvToUMF . detFuns . distsamp . distsampOpen . extract-methods . fitList . fitted-methods . formatDistData . formatMult . formatWideLong . frogs . gdistremoval . gdistsamp . getB-methods . getFP-methods . getP-methods . gf . gmultmix . goccu . gpcount . imputeMissing . issj . jay . lambda2psi . linearComb-methods . linetran . makePiFuns . mallard . masspcru . modSel . multinomPois . multmixOpen . nmixTTD . nonparboot-methods . occu . occuCOP . occuFP . occuMS . occuMulti . occuPEN . occuPEN_CV . occuRN . occuTTD . optimizePenalty-methods . ovendata . parboot . pcount . pcount.spHDS . pcountOpen . piFuns . plotEffects . pointtran . posteriorSamples . powerAnalysis . predict-methods . randomTerms . ranef-methods . shinyPower . sight2perpdist . sigma . simulate-methods . unmarked-package . unmarkedEstimate-class . unmarkedEstimateList-class . unmarkedFit-class . unmarkedFrame-class . unmarkedFrame . unmarkedFrameDS . unmarkedFrameDSO . unmarkedFrameGDR . unmarkedFrameMMO . unmarkedFrameMPois . unmarkedFrameOccu . unmarkedFrameOccuCOP . unmarkedFrameOccuFP . unmarkedFrameOccuMS . unmarkedFrameOccuMulti . unmarkedFrameOccuTTD . unmarkedFramePCO . unmarkedFramePCount . unmarkedMultFrame . unmarkedPower-class . unmarkedPowerList . unmarkedRanef-class . vcov-methods . vif . 
Some associated R codes: RcppExports.R . boot.R . classes.R . colext.R . distsamp.R . distsampOpen.R . gdistremoval.R . gdistsamp.R . getDesign.R . gmultmix.R . goccu.R . gpcount.R . makePiFun.R . mapInfo.R . mixedModelTools.R . multinomPois.R . multmixOpen.R . nmixTTD.R . occu.R . occuCOP.R . occuFP.R . occuMS.R . occuMulti.R . occuPEN.R . occuRN.R . occuTTD.R . pcount.R . pcount.spHDS.R . pcountOpen.R . piFun.R . plotEffects.R . posteriorSamples.R . power.R . predict.R . ranef.R . simulate.R . unmarkedCrossVal.R . unmarkedEstimate.R . unmarkedFit.R . unmarkedFitList.R . unmarkedFrame.R . unmarkedLinComb.R . utils.R . vif.R . zzz.R .  Full unmarked package functions and examples
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