trifield (version 1.1)

trifield-package: Assists in creating and plotting ternary fields

Description

The package can project between unity-summed ternary vectors and binary vectors. An "apply" function is provided to apply a function over a ternary field, as is a function for constructing ternary grids. Some rudimentary plotting functions are also provided. This is quick and dirty research code I needed in the course of writing a manuscript. Take it as such.

Details

Package:

trifield

Type:

Package

Version:

1.0

Date:

2011-07-24

License:

GPL 2

LazyLoad:

yes

Some simple routines, mainly aimed at making ternary fields and contour plots.

References

http://dx.doi.org/10.1016/j.ecolmodel.2012.05.020

Examples

# See demo(trifield)
## Not run: 
# grid.size = 128
# par(mar = rep(2, 4), oma = rep(0, 4))
# tg = ternary.grid(grid.size)
# f = function(x)
#         sin(2 * pi * x[1]) +
#         sin(3 * pi * x[2]) +
#         sin(4 * pi * x[3])
# z = ternary.apply(tg, f)
# tf = ternary.field(tg, z)
# plot(tf)
# ternary.legend()
# ## End(Not run)