SpadeR (Species-Richness Prediction and Diversity Estimation with R) is an updated R package from the original version of SPADE. SpadeR provides simple R functions to compute various biodiversity indices and related (dis)similarity measures based on individual-based (abundance) data or sampling-unit-based (incidence) data taken from one or multiple communities/assemblages. The SpadeR package is available in CRAN. We have been updating SpadeR and you can download the latest version from Github (see below) or from Anne Chao's website.
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