3 \title{Balance of a Dichotomous Phylogenetic Tree}
8 \item{phy}{an object of class \code{"phylo"}.}
11 This function computes the balance of a phylogenetic tree, that is for
12 each node of the tree the numbers of descendants (i.e. tips) on each
13 of its daughter-branch. The tree must be fully dichotomous.
16 a numeric matrix with two columns and one row for each node of the
17 tree. The columns give the numbers of descendants on each
18 daughter-branches (the order of both columns being arbitrary). If the
19 phylogeny \code{phy} has an element \code{node.label}, this is used as
20 rownames for the returned matrix; otherwise the numbers (of mode
21 character) of the matrix \code{edge} of \code{phy} are used as rownames.
24 Aldous, D. J. (2001) Stochastic models and descriptive statistics for
25 phylogenetic trees, from Yule to today. \emph{Statistical Science},
28 \author{Emmanuel Paradis \email{Emmanuel.Paradis@mpl.ird.fr}}