ternaryDiagAbline {robCompositions}

Adds a line to a ternary diagram.

Description

A low-level plot function which adds a line to a high-level ternary diagram.

Usage

ternaryDiagAbline(x, ...)

Arguments

x

Two-dimensional data set in isometric log-ratio transformed space.

...

Additional graphical parameters passed through.

Details

This is a small utility function which helps to add a line in a ternary plot from two given points in an isometric transformed space.

Value

no values are returned.

Author(s)

Matthias Templ

See Also

ternaryDiag

Examples

data(coffee)
x <- coffee[,2:4]
ternaryDiag(x, grid=FALSE)
ternaryDiagAbline(data.frame(z1=c(0.01,0.5), z2=c(0.4,0.8)), col="red")