ape (version 5.8-1)

axisPhylo: Axis on Side of Phylogeny

Description

This function adds a scaled axis on the side of a phylogeny plot.

Usage

axisPhylo(side = NULL, root.time = NULL, backward = TRUE, ...)

Arguments

side

a numeric value specifying the side where the axis is plotted: 1: below, 2: left, 3: above, 4: right. By default, this is taken from the direction of the plot.

root.time

the time assigned to the root node of the tree. By default, this is taken from the root.time element of the tree. If it is absent, this is determined from the next option.

backward

a logical value; if TRUE, the most distant tip from the root is considered as the origin of the time scale; if FALSE, this is the root node.

...

further arguments to be passed to axis.

Author

Emmanuel Paradis, Klaus Schliep

Details

The further arguments (...) are used to format the axis. They may be font, cex, col, las, and so on (see the help pages on axis and par).

See Also

plot.phylo, add.scale.bar, axis, par

Examples

tr <- rtree(30)
ch <- rcoal(30)
plot(ch)
axisPhylo()
plot(tr, "c", FALSE, direction = "u")
axisPhylo(las = 1)