This tool calculates sample size and power for a range of scenarios where counts of species have been recorded. Likelihoods considered are bernoulli, zero-inflated biomial (rare species), Poisson, negative Binomial and zero-inflated negative Binomial (common species).

You can install a development version of the LRE package from GitHub

# install.packages("devtools")
remotes::install_github(repo = "pkuhnert/AsymPower", build_vignettes = TRUE, force = TRUE)

Petra Kuhnert, CSIRO Data61, Canberra, (Author and Maintainer)

Email: [email protected]

The equations for sample size and power are outlined in Kuhnert et al. (2011). The calculations are specified in the appendix and appear in the vignette that accompanies this package.

vignette("AsymPower")
browseVignettes(package = "AsymPower")

AsymPower is free under the GNU General Public License (GPL >= 3.0)

Kuhnert, P.M., Griffiths, S. and Brewer, D. (2011) Assessing population changes in bycatch species using fishery-dependent catch rate data, Fisheries Research, 108, 15-21.