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phytools (version 0.7-20)

geo.legend: Adds a geological (or other temporal) legend to a plotted tree

Description

The function geo.legend adds a geological (or other temporal) legend to a plotted tree.

The function geo.palette returns a geological time color palette to the user.

Usage

geo.legend(leg=NULL, colors=NULL, alpha=0.2, ...)
geo.palette()

Arguments

leg

a matrix with the starting & ending point of each plotted era in rows, & names of the time periods as rownames.

colors

a vector of colors for the time periods of the rows in leg.

alpha

transparency level to apply to colors.

...

optional arguments.

Value

geo.legend adds a visual element to a plotted tree and invisible returns an object of class geo.legend containing the time periods and colors of the painted legend.

geo.palette simply returns a geological timescale color palette as an object of class "geo.palette".

References

Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol., 3, 217-223.