Compositional Mean

Computes and draws the closed geometric mean of the set of points specified.

Usage

ternary_mean(x, y, z, ...)

# S4 method for class 'numeric,numeric,numeric'
ternary_mean(x, y, z, ...)

# S4 method for class 'ANY,missing,missing'
ternary_mean(x, y, z, ...)

Arguments

x, y, z

A numeric vector giving the x, y and z ternary coordinates of a set of points. If y and z are missing, an attempt is made to interpret x in a suitable way (see grDevices::xyz.coords()).

...

Further arguments to be passed to graphics::points().

Value

ternary_mean() is called it for its side-effects.

See also

Other statistics: ternary_contour(), ternary_density(), ternary_ellipse(), ternary_hull(), ternary_pca()

Author

N. Frerebeau

Examples

## Mean
## Data from Aitchison 1986
ternary_plot(lava, panel.first = ternary_grid())
ternary_mean(lava, pch = 16, col = "red")
ternary_confidence(lava, level = 0.95, border = "red", lty = 1)