rbvole | R Documentation |
This data set contains robust design capture history data for red-back voles.
rbvole
66 by 19 numeric matrix, with the following columns:
c11
, c12
, c13
Capture histories from the three capture occasions within primary period 1
c21
, c22
, c23
Capture histories from the three capture occasions within primary period 2
c31
, c32
, c33
Capture histories from the three capture occasions within primary period 3
c41
, c42
, c43
Capture histories from the three capture occasions within primary period 4
c51
, c52
, c53
Capture histories from the three capture occasions within primary period 5
c61
, c62
, c63
Capture histories from the three capture occasions within primary period 6
Observed frequencies for each capture history
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 analyzed in Rivest and Daigle (2004).
Each row of this data set represents an observed capture history followed by its frequency.
Rivest, L.P. and Daigle, G. (2004) Loglinear models for the robust design in mark-recapture experiments. Biometrics, 60, 100–107.
# 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. ### 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, fitting this # model uses a lot of memory. Its runtime is several minutes long.
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