ternaryDiagEllipse: Adds tolerance ellipses to a ternary diagram.

Description Usage Arguments Value Author(s) See Also Examples

View source: R/ternaryDiagEllipse.R

Description

Low-level plot function which add tolerance ellipses to a high-level plot of a ternary diagram.

Usage

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ternaryDiagEllipse(x, tolerance = c(0.9, 0.95, 0.975), locscatt = "MCD", ...)

Arguments

x

Three-part composition. Object of class “matrix” or “data.frame”.

tolerance

Determines the amount of observations with Mahalanobis distance larger than the drawn ellipse, scaled to one.

locscatt

Method for estimating the mean and covariance.

...

Additional arguments passed trough.

Value

no values are returned.

Author(s)

Peter Filzmoser, Matthias Templ

See Also

ternaryDiag

Examples

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data(coffee)
x <- coffee[,2:4]
ternaryDiag(x, grid=FALSE)
ternaryDiagEllipse(x)
## or directly:
ternaryDiag(x, grid=FALSE, line="ellipse")

robCompositions documentation built on Jan. 13, 2021, 10:07 p.m.