From ape v4.1
0th

Percentile

This function reorganizes the internal structure of the tree to get the ladderized effect when plotted.

Keywords
manip
##### Usage
ladderize(phy, right = TRUE)
##### Arguments
phy

an object of class "phylo".

right

a logical specifying whether the smallest clade is on the right-hand side (when the tree is plotted upwards), or the opposite (if FALSE).

plot.phylo, reorder.phylo

##### Examples
# NOT RUN {
tr <- rcoal(50)
layout(matrix(1:4, 2, 2))
plot(tr, main = "normal")