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phytools (version 0.2-40)

contMap: Map continuous trait evolution on the tree

Description

Function plots a tree with a mapped continuous character. The mapping is accomplished by estimating states at internal nodes using ML with fastAnc, and the interpolating the states along each edge using equation [2] of Felsenstein (1985).

Usage

contMap(tree, x, res=100, fsize=NULL, ftype=NULL, lwd=4, legend=NULL,
     lims=NULL, outline=TRUE, sig=3)

Arguments

tree
object of class "phylo".
x
vector of phenotypic trait values for species. names(x) should contain the species names and match tree$tip.label.
res
resolution for gradient plotting. Larger numbers indicate a finer (smoother) gradient.
fsize
relative font size - can be a vector with the second element giving the font size for the legend.
ftype
font type - see options in plotSimmap. As with fsize, can be a vector with the second element giving font type for the legend.
lwd
line width for branches.
legend
if FALSE no legend is plotted; if a numeric value, it gives the length of the legend in units of branch length. Default is 0.5 times the total tree length.
lims
range for the color map. By default, this will be c(min(x),max(x)), and should always include this range.
outline
logical value indicating whether or not to outline the branches of the tree in black.
sig
the number of decimal places to show on the legend limits.

Value

  • plots a tree.

References

Revell, L. J. Submitted. Two new graphical methods for mapping trait evolution on phylogenies. Felsenstein, J. 1985. Phylogenies and the comparative method. American Naturalist, 125, 1-15.

See Also

densityMap, fastAnc, plotSimmap