tri {cwhmisc}R Documentation

Ternary or Triangular Plots.

Description

plotCI plots in a triangle the values of three variables. Useful for mixtures (chemistry etc.).

Usage

tri(a, f, m, symb=2, grid=FALSE, ...)

Arguments

a Vector of first variable.
f Vector of second variable.
m Vector of third variable.
symb Symbol to be plotted
grid Plot the grid: TRUE or FALSE
... Additional parameters for plot

Value

The function tri is called for its side effect to produce a plot. codetrigrid is internal to tri.

Author(s)

Colin Farrow Computing Service, University of Glasgow, Glasgow G12 8QQ Tel: 0141 330 4862, c.farrow@compserv.gla.ac.uk

Examples

# some random data in three variables
c1 <- runif(5, 10, 20)
c2 <- runif(5, 1, 5)
c3 <- runif(5, 15, 25)
# basic plot
tri(c1,c2,c3)
# plot with different symbols and a grid
tri(c1,c2,c3, symb=7, grid=TRUE)

[Package cwhmisc version 2.0.1 Index]