RMark (version 2.1.1)

process.ch: Process release-recapture history data

Description

Creates needed constructs from the release-recapture history.

Usage

process.ch(ch, freq = NULL, all = FALSE)

Arguments

ch

Vector of character strings; each character string is composed of either a constant length sequence of single characters (01001) or the character string can be comma separated if more than a single character is used (1S,1W,0,2W). If comma separated, ea

freq

Optional vector of frequencies for ch; if missing assumed to be a; if

all

FALSE is okay for cjs unless R code used to compute lnl instead of FORTRAN; must be true for js because it returns additional quantities needed for entry prob.

Value

• nocc
  number of capture occasions
• freq
  absolute value of frequency for each ch
• first
  vector of occasion numbers for first 1
• last
  vector of occasion numbers for last 1
• loc
  vector of indicators of a loss on capture if set to 1
• chmat
  capture history matrix
• FtoL
  1's from first (1) to last (1) and 0's elsewhere; only if all==TRUE
• Fplus
  1's from occasion after first (1) to nocc(last occasion); only if all==TRUE
• Lplus
  1's from occasion after last (1) to nocc; only if all==TRUE
• L
  1's from last (1) to nocc; only if all==TRUE