Representation of a quantitative variable in front of a phylogenetic tree

symbols.phylog draws the phylogenetic tree and represents the values of the variable by symbols (squares or circles) which size is proportional to value. White symbols correspond to values which are below the mean, and black symbols correspond to values which are over.

Usage

symbols.phylog(phylog, circles, squares, csize = 1, clegend = 1,
 sub = "", csub = 1, possub = "topleft")

Arguments

phylog

an object of class phylog

circles

a vector giving the radii of the circles

squares

a vector giving the length of the sides of the squares

csize

a size coefficient for symbols

clegend

a character size for the legend used by par("cex")*clegend

sub

a string of characters to be inserted as legend

csub

a character size for the legend, used with par("cex")*csub

possub

a string of characters indicating the sub-title position ("topleft", "topright", "bottomleft", "bottomright")

Author

Daniel Chessel
Sébastien Ollier sebastien.ollier@u-psud.fr

See also

table.phylog and dotchart.phylog for many variables

Examples

data(mjrochet)
mjrochet.phy <- newick2phylog(mjrochet$tre)
tab0 <- data.frame(scalewt(log(mjrochet$tab)))
par(mfrow=c(3,2))
for (j in 1:6) {
    w <- tab0[,j]
    symbols.phylog(phylog = mjrochet.phy, w, csi = 1.5, cleg = 1.5,
     sub = names(tab0)[j], csub = 3)
}

par(mfrow=c(1,1))