estN.pair: Pairwise estimation

Description Usage Arguments Value Note References Examples

Description

Estimating population size based on any pair of samples

Usage

1

Arguments

z

the vector of capture histories or ascertainment records.

Value

estimates based on any pair of samples

Note

  1. Refer to Seber (1982, pages 59 and 60) for the Petersen estimator and the Chapman estimator as well as s.e. formula.

  2. A log-transformation is used to obtain the confidence interval so that the lower limit is always greater than the number of ascertained. Refer to Chao (1987, Biometrics,43, 783-791) for the construction of the confidence interval.

References

Chao, A. (1987). Estimating the population size for capture-recapture data with unequal catchability. Biometrics, 43: 783-791.
Chao, A., Tsay, P. K., Lin, S. H., Shau, W. Y., and Chao, D. Y. (2001). The applications of capture-recapture models to epidemiological data. Statistics in Medicine, 20: 3123-3157.
Seber, G. A. F. (1982). The estimation of animal abundance (2 ed.): Griffin, London.

Examples

1
2


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