CensusToCaptHist: Constructs capture-history matrix from census matrix to be used in Bayesian Survival Trajectory Analysis (BaSTA).

Description

This function takes a common census table, consisting of a pair of vectors with ID and observation date, and converts it into a capture-history matrix to be used as part of a BaSTA data input.

Usage

CensusToCaptHist(ID, d, dformat = "%Y", timeInt = "Y")

Arguments

ID: A vector with individual IDs.
d: A vector of dates when each individual was observed.
dformat: Defines the date format for d when d is of class character.
timeInt: A one character string specifying which time interval should be used between capture occasions. Arguments are “Y” for years, “M” for months, “W” for weeks and “D” for days.

Author

Owen R. Jones jones@demogr.mpg.de and Maren Rebke rebke@demogr.mpg.de

Details

The d argument can be specified as an object of class POSIXct or POSIXlt, as a vector of integer time intervals or as a character string indicating the day, month and year. (e.g. dd/mm/yyyy, mmddyyyy, mm-dd-yyyy etc.). When d is of class character then argument dformat needs to be specified using the same conventions as in function format.POSIXct for objects of class POSIXct or POSIXlt.

Examples

Run this code

id.vec <- sort(sample(1:5, size = 15, replace = TRUE))
d.vec <- rep(0, length(id.vec))
for(i in unique(id.vec)){
  svec <- which(id.vec == i)
  d.vec[svec] <- sort(sample(1990:1995, length(svec)))
}
Y <- CensusToCaptHist(ID = id.vec,  d = d.vec)