Adds a line to a ternary diagram.
A low-level plot function which adds a line to a high-level ternary diagram.
ternaryDiagAbline(x, ...)
x |
Two-dimensional data set in isometric log-ratio transformed space. |
... |
Additional graphical parameters passed through. |
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.
no values are returned.
Matthias Templ
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")
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