% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/tidytree.R
\name{getRoot}
\alias{getRoot}
\title{getRoot}
\usage{
getRoot(tr)
}
\arguments{
\item{tr}{phylo object}
}
\value{
root number
}
\description{
get the root number
}
\author{
Guangchuang Yu
}