ternary function

Ternary plot

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.

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

Returns

No return value, creates a plot.

Details

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

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.

Author(s)

Peter Filzmoser <P.Filzmoser@tuwien.ac.at > http://cstat.tuwien.ac.at/filz/

Examples

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