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Adds tolerance ellipses to a ternary diagram.
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", ...)
       Three-part composition. Object of class \dQuote{matrix} or \dQuote{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.
no values are returned.
Peter Filzmoser, Matthias Templ
x <- coffee[,1:3]
ternaryDiag(x, grid=FALSE)
## or directly:
ternaryDiag(x, grid=FALSE, line="ellipse")
% Add one or more standard keywords, see file 'KEYWORDS' in the
% R documentation directory.
\keyword{ aplot }
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