Compute the transformation matrix to express a composition using
the linearly dependant centered log-ratio coordinates.
Usage
clr_basis(dim)
Value
matrix
Arguments
dim
An integer indicating the number of components.
If a dataframe or matrix is provided, the number of components is inferred from the number of columns. If a character vector specifying the names of the parts is provided the number of component is its length.
References
Aitchison, J. (1986)
The Statistical Analysis of Compositional Data.
Monographs on Statistics and Applied Probability. Chapman & Hall Ltd., London (UK). 416p.
(B <- clr_basis(5))
# CLR coordinates are linearly dependant coordinates.(clr_coordinates <- coordinates(c(1,2,3,4,5), B))
# The sum of all coordinates equal to zerosum(clr_coordinates) < 1e-15