densityMap(trees, res=100, fsize=NULL, ftype=NULL, lwd=3, check=FALSE,
legend=NULL, outline=FALSE)"multiPhylo" object. Values for a discrete character are mapped on the tree. See make.simmap and read.simmaplotSimmap. As with fsize, can be a vector with the second element giving font type for the legend.trees are equal.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.make.simmap, plotSimmap, read.simmap