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Low-level plot function which add tolerance ellipses to a high-level plot of a ternary diagram.
ternaryDiagEllipse(x, tolerance = c(0.9, 0.95, 0.975), locscatt = "MCD", ...)
no values are returned.
Three-part composition. Object of class “matrix” or “data.frame”.
Determines the amount of observations with Mahalanobis distance larger than the drawn ellipse, scaled to one.
Method for estimating the mean and covariance.
Additional arguments passed trough.
Peter Filzmoser, Matthias Templ
ternaryDiag
data(coffee) x <- coffee[,2:4] ternaryDiag(x, grid=FALSE) ternaryDiagEllipse(x) ## or directly: ternaryDiag(x, grid=FALSE, line="ellipse")
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