matrix_contrasts: Matrix of contrast weights
In rscherrer/sagreicolor:

Description Usage Arguments Value Author(s)

This function assembles multiple vectors of contrasts weights into a matrix. All pairwise contrasts between habitats on each island are computed separately. Contrasts between habitats across islands are not considered.

1	matrix_contrasts(specdata)

specdata

A data frame containing at least columns for the dependent variables, as well as a column "island" and a column "habitat".

A matrix of contrast weights. Each row is a contrast. Each column is a habitat on a given island. Each row is filled with zeros, except the two habitats to compare, which are given values 1 and -1.

Raphael Scherrer

rscherrer/sagreicolor documentation built on May 26, 2019, 12:32 p.m.