nodeHeights {phytools} | R Documentation |
nodeHeights
computes the height above the root for all nodes in the tree. nodeheight
computes the height above the root for a single node.
nodeHeights(tree) nodeheight(tree, node)
tree |
a phylogeny as an object of class |
node |
for |
The function nodeHeights
also gives a handy way to get the total length of the tree from the root to the heighest tip which will be given by max(nodeHeights(tree))
. Generally speaking, nodeHeights
will be faster if the heights of all or a large proportion of nodes is needed, wherease nodeheight
will be faster if the height of one or a small number of nodes are needed.
Either a matrix of the same dimensions as tree$edge
containing the height above the root of each node in edge
(for nodeHeights
); or a single positive number (for nodeheight
).
Liam Revell liam.revell@umb.edu
Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol., 3, 217-223.
tree<-rtree(10) X<-nodeHeights(tree)