beta.pair.abund {betapart}  R Documentation 
Abundancebased pairwise dissimilarities
Description
Computes 3 distance matrices accounting for the (i) balanced variation in abundances, (ii) abundance gradients, and (iii) total dissimilarity (i.e. the sum of both components).
Usage
beta.pair.abund(x, index.family = "bray")
Arguments
x 
data frame, where rows are sites and columns are species. Alternatively 
index.family 
family of dissimilarity indices, partial match of 
Value
The function returns a list with three dissimilarity matrices.
For index.family="bray"
the three matrices are:
beta.bray.bal 

beta.bray.gra 

beta.bray 

For index.family="ruzicka"
the three matrices are:
beta.ruz.bal 

beta.ruz.gra 

beta.ruz 

Author(s)
Andrés Baselga
References
Baselga, A. 2013. Separating the two components of abundancebased dissimilarity: balanced changes in abundance vs. abundance gradients. Methods in Ecology and Evolution 4: 552–557
Legendre, P. 2014. Interpreting the replacement and richness difference components of beta diversity. Global Ecology and Biogeography, 23: 1324–1334
See Also
beta.multi.abund
, beta.sample.abund
, betapart.core.abund
, beta.pair
Examples
require(vegan)
data(BCI)
BCI.pair<beta.pair.abund(BCI, index.family="bray")