ternary: Ternary plot

In StatDA: Statistical Analysis for Environmental Data

Ternary plot

Description

This plot shows the relative proportions of three variables in one diagramm. It is important that the proportion sum up to 100% and if the values of the variables are very different it is important to scale them to the same data range.

Usage

ternary(x, nam = NULL, grid = FALSE, ...)

Arguments

x	matrix with 3 columns
nam	names of the variables
grid	if TRUE the grid should be plotted
...	further graphical parameters, see par

Details

The relative proportion of each variable is computed and those points are plotted into the graphic.

Value

No return value, creates a plot.

Author(s)

Peter Filzmoser <[e-mail]> http://cstat.tuwien.ac.at/filz/

References

C. Reimann, P. Filzmoser, R.G. Garrett, and R. Dutter: Statistical Data Analysis Explained. Applied Environmental Statistics with R. John Wiley and Sons, Chichester, 2008.

Examples

data(moss)
x=moss[,c("Ni","Cu","Pb")]
ternary(x,grid=TRUE,pch=3,cex=0.7,col=1)

StatDA documentation built on June 7, 2023, 6:26 p.m.