colourvision (version 2.1.0)

EMline: Endler and Mielke (2005) 1-D colour space

Description

Plots a colour space for dichromatic Endler and Mielke (2005) colour vision model.

Usage

EMline(x,y=rep(0, length(x)), type="length",
         vnames=c("E1","E2"), 
         ylim="auto", xlim="auto",
         ann=FALSE, axes = FALSE, ...)

Arguments

x

x-coordinate

y

y-coordinate

type

Whether the colour space should be built with a fixed vector length, or a fixed edge length (distance between vertices).

vnames

Vector names

ylim

see plot function.

xlim

see plot function.

ann

see par function.

axes

see plot.default function.

...

Other arguments passed to plot.

Author

Felipe M. Gawryszewski

Details

The original model is available for tetrachromatic animals only. Colour space is built either with a vector length = 0.75 or a edge length = sqrt(3/2), to match the tetrahedron proposed by Endler and Mielke (2005).

References

Endler, J. A., and P. Mielke. 2005. Comparing entire colour patterns as birds see them. Biol J Linn Soc 86:405-431.

See Also

EMtriangle, EMtetrahedron, EMmodel

Examples

EMline(x=0.1, pch=16, col="red")