Add Connected Line Segments to a Ternary Plot

Add Connected Line Segments to a Ternary Plot

Usage

ternary_lines(x, y, z, ...)

# S4 method for numeric,numeric,numeric
ternary_lines(x, y, z, type = "l", ...)

# S4 method for ANY,missing,missing
ternary_lines(x, type = "l", ...)

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 graphical parameters (see graphics::par()) may also be supplied as arguments, particularly, line type, lty, line width, lwd, color, col and for type = "b", pch. Also the line characteristics lend, ljoin and lmitre.

type

A character string indicating the type of plotting; actually any of the types as in graphics::plot.default().

Value

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

See also

graphics::lines()

Other geometries: ternary_arrows(), ternary_crosshairs(), ternary_labels(), ternary_points(), ternary_polygon(), ternary_segments(), ternary_text()

Author

N. Frerebeau

Examples

## Compositional data
coda <- data.frame(
  X = c(20, 60, 20, 20),
  Y = c(20, 20, 60, 40),
  Z = c(60, 20, 20, 40)
)

## Add lines
ternary_plot(NULL, panel.first = ternary_grid())
ternary_lines(coda, col = "red", lwd = 2)