Compute the beta diversity between all pair of sites for a specific presence-absence matrix.
presence absence matrix (sites as rows and species as columns).
a vector of two-letters strings describing the methods te be used.
Values should be taken among
string vector giving the names of the sites. If
ra stands for raw and returns the number of occurrence.
Additionnal values are
bc: Bray-Curtis index,
wi: Wishart index,
ja: Jaccard index.
A matrix with all the combinaison of site and the associated betadiv.
Legendre, P., and De CÃ¡ceres M.. Beta Diversity as the Variance of Community Data: Dissimilarity Coefficients and Partitioning. Ecology Letters (2013).
Koleff, P., Gaston, K. J. & Lennon, J. J. Measuring beta diversity for presence-absence data. Journal of Animal Ecology (2003).
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