This package is designed as a supplement the text D.L. Borchers, S.T. Buckland and W. Zucchini (2002) "Estimating Animal Abundance: Closed Populations", Springer.
Please note: This package is no longer being actively developed or supported.
Thanks to Juan Luis Herrera Cortijo for patches to allow installation in R 4.0.2.
The easiest way to install WiSP is via remotes:
install.packages("remotes")
remotes::install_github("DistanceDevelopment/WiSP")