bray_curtis_components {abdiv}

Balanced variation and abundance gradient components for abundance data

Description

Balanced variation and abundance gradient components for abundance data

Usage

bray_curtis_balanced(x, y)

bray_curtis_gradient(x, y)

ruzicka_balanced(x, y)

ruzicka_gradient(x, y)

Arguments

x, y

Numeric vectors

Value

The balanced variation or abundance gradient component of distance between x and y. This quantity is undefined when either x or y have all elements equal to zero, in which case we return NaN.

References

Baselga A. Separating the two components of abundance-based dissimilarity: balanced changes in abundance vs.abundance gradients. Methods in Ecology and Evolution. 2013;4:552–557.

Baselga A. Partitioning abundance-based multiple-site dissimilarity into components: balanced variation in abundance and abundance gradients. Methods in Ecology and Evolution. 2017;8:799–808.