ch2marray: Converts capture-histories to an m-array
In AHMbook: Functions and Data for the Book 'Applied Hierarchical Modeling in Ecology' Vols 1 and 2
View source: R/ch2marray_AHM2_3-4-1.R
ch2marray R Documentation
Converts capture-histories to an m-array
Description
Converts capture-histories to an m-array for use in a Cormack-Jolly-Seber (CJS) model.
Usage
ch2marray(CH)
Arguments
CH
An individuals x time matrix of capture records, 1 if captured, 0 otherwise, no missing values.
Value
An m-array, a (years-1) x years matrix, where element [i, j] contains the number of individuals released in year i and recaptured in year j+1 (by definition no recaptures can occur in year 1). The last column contains the number of individuals released in year i and never recaptured.
Author(s)
Marc Kéry & Andy Royle, modified from code in Kéry and Schaub (2012).
References
Kéry and Schaub (2012) Bayesian population analysis using WinBUGS - a hierarchical perspective, Academic Press.
Kéry, M. & Royle, J.A. (2021) Applied Hierarchical Modeling in Ecology AHM2 - 3.4.1
Examples
data(willowWarbler)
ch <- as.matrix(willowWarbler$birds[ , 1:11]) # extract capture-histories.
dim(ch)
ch2marray(ch)
AHMbook documentation built on Sept. 12, 2024, 6:37 a.m.
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View source: R/ch2marray_AHM2_3-4-1.R
| ch2marray | R Documentation |
Converts capture-histories to an m-array
Description
Converts capture-histories to an m-array for use in a Cormack-Jolly-Seber (CJS) model.
Usage
ch2marray(CH)
Arguments
CH |
An individuals x time matrix of capture records, 1 if captured, 0 otherwise, no missing values. |
Value
An m-array, a (years-1) x years matrix, where element [i, j] contains the number of individuals released in year i and recaptured in year j+1 (by definition no recaptures can occur in year 1). The last column contains the number of individuals released in year i and never recaptured.
Author(s)
Marc Kéry & Andy Royle, modified from code in Kéry and Schaub (2012).
References
Kéry and Schaub (2012) Bayesian population analysis using WinBUGS - a hierarchical perspective, Academic Press.
Kéry, M. & Royle, J.A. (2021) Applied Hierarchical Modeling in Ecology AHM2 - 3.4.1
Examples
data(willowWarbler)
ch <- as.matrix(willowWarbler$birds[ , 1:11]) # extract capture-histories.
dim(ch)
ch2marray(ch)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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