rbvole {Rcapture}R Documentation

Robust Design Data for Red-Back Voles

Description

This data set contains robust design capture history data for red-back voles.

Usage

data(rbvole)

Format

c11, c12, c13
Capture histories for the three capture occasions within primary period 1
c21, c22, c23
Capture histories for the three capture occasions within primary period 2
c31, c32, c33
Capture histories for the three capture occasions within primary period 3
c41, c42, c43
Capture histories for the three capture occasions within primary period 4
c51, c52, c53
Capture histories for the three capture occasions within primary period 5
c61, c62, c63
Capture histories for the three capture occasions within primary period 6
freq
Observed frequencies for each capture history

Details

Data collection was carried out by Etcheverry and al.. The capture occasions represent three consecutive days of trapping in May 1999, July 1999, August 1999, May 2000, July 2000 and August 2000 in the Duchenier conservation area in southeastern Quebec. This data set is analysed in Rivest and Daigle (2004).

This data set's format is the alternative one, i.e. each row represents an observed capture history followed by its frequency.

References

Rivest, L.P. and Daigle, G. (2004) Loglinear models for the robust design in mark-recapture experiments. Biometrics, 60, 100–107.

Examples

  # According to Rivest and Daigle (2004), a good robust design model
  # for this data set is formed of an Mth Chao model for each period.
  # This model can be fitted as follows.
  
### data(rbvole)
### memory.limit(size=2000)
### rd<-robustd.t(rbvole,dfreq=TRUE,vt=rep(3,6),vm="Mth",vh="Chao")

  # WARNING : Because the data has 18 capture occasions, the fitting
  # of this model is very memory consuming; it is long to run!

[Package Rcapture version 1.1 Index]