provenance (version 0.2)

clr: Centred logratio transformation

Description

Calculates Aitchison's centered logratio transformation for a dataset of class HMdata

Usage

clr(x, ...)
## S3 method for class 'HMdata':
clr(x, ...)

Arguments

x

an object of class HMdata

...

optional arguments of the generic function

Value

• a matrix of clr coordinates

Examples

fname <- system.file("Major.csv",package="provenance")
Major <- read.HMdata(fname)
clrdat <- clr(Major)$x
diss <- dist(clrdat)
plot(getMDS(diss,classical=TRUE))