Wilson Measure
index_wilson(x, ...)# S4 method for matrix
index_wilson(x)
A numeric vector.
A \(m \times p\) numeric matrix of count data
(absolute frequencies, i.e. a contingency table).
Currently not used.
N. Frerebeau
This assumes that the order of the matrix rows (from \(1\) to \(n\)) follows the progression along the gradient/transect.
Wilson, M. V., & Shmida, A. (1984). Measuring Beta Diversity with Presence-Absence Data. The Journal of Ecology, 72(3), 1055-1064. tools:::Rd_expr_doi("10.2307/2259551").
Other beta diversity measures:
index_binomial(),
index_brainerd(),
index_bray(),
index_cody(),
index_jaccard(),
index_morisita(),
index_routledge,
index_sorenson(),
index_whittaker()