\alias{is.rooted}
\title{Roots Phylogenetic Trees}
\usage{
-root(phy, outgroup, node = NULL, resolve.root = FALSE)
+root(phy, outgroup, node = NULL, resolve.root = FALSE, interactive = FALSE)
unroot(phy)
is.rooted(phy)
}
\item{node}{alternatively, a node number where to root the tree.}
\item{resolve.root}{a logical specifying whether to resolve the new
root as a bifurcating node.}
+ \item{interactive}{if \code{TRUE} the user is asked to select the node
+ by clicking on the tree which must be plotted.}
}
\description{
\code{root} reroots a phylogenetic tree with respect to the specified