gx.symm.coords: Computation of Symmetric Coordinates

In rgr: Applied Geochemistry EDA

Description

Computes symmetric coordinates for the first two columns of a n by p matrix of compositional data.

Usage

gx.symm.coords(x)

Arguments

x	matrix for which the symmetric coordinates for the first two columns will be computed.

Value

Z.av	the n by 2 matrix of symmetric coordinates.

Author(s)

Based on function pivotCoords from package robCompositions ver 2.0.3 by Templ, M., Hron, K. and Filzmoser, P.

References

Kynclova, P., Hron, K., and Filzmoser, P., 2017. Correlation Between Compositional Parts Based on Symmetric Balances. Mathematical Geosciences, 49:777-796.

See Also

gx.symm.coords.mat, gx.symm.coords.r ,gx.symm.coords.plot

Examples

## Make test data available
data(nockolds)

## Compute and display symmetric coordinates for the first two columns 
## of the data
gx.symm.coords(as.matrix(nockolds))

## Clean-up
rm(nockolds)

rgr documentation built on May 2, 2019, 6:09 a.m.