This function generates a tree by splitting randomly the edges until
the specified number of tips is obtained.
Usage
rtree(n, br = TRUE)
Arguments
n
an integer giving the number of tips in the tree.
br
a logical specifying whether the tree should have branch
lengths (default is TRUE).
Details
If br = TRUE, branch lengths are taken from a uniform
distribution on [0, 1].
This is an experimental function and is not intended to generate trees
with given statistical characteristics (at least for the moment). Its
present purpose is to give a tree of a specified size in an easy
way. To get an ultrametric tree, one may apply the function
chronogram to the tree generated by rtree.
layout(matrix(1:9, 3, 3))
### Nine random trees:for (i in1:9) plot(rtree(20))
### Nine random cladograms:for (i in1:9) plot(rtree(20, FALSE), type = "c")
layout(matrix(1))