sprex-package: Calculate species richness and extrapolation metrics
Description
Calculate species richness and expected number of species
primarily based on algorithms in Colwell, R.K., A. Chao, N.J. Gotelli,
S.-Y. Lin, C.X. Mao, R.L. Chazdon, and J.T. Longino. 2012. Models and
estimators linking individual-based and sample-based rarefaction,
extrapolation and comparison of assemblages.
Journal of Plant Ecology 5(1):3-21.