find_descendant_edges {Claddis} | R Documentation |
Returns all descendant edges of an internal node for a phylo object.
find_descendant_edges(n, tree)
n |
An integer corresponding to the internal node for which the descendant edges are sought. |
tree |
A tree as a phylo object. |
Returns a vector of integers corresponding to row numbers in $edge
or cells in $edge.length
of the descendant edges of the internal node supplied.
Graeme T. Lloyd graemetlloyd@gmail.com
# Create simple four-taxon tree: tree <- ape::read.tree(text = "(A,(B,(C,D)));") # Plot tree: plot(tree) # Show nodelabels: nodelabels() # Show edgelabels (note that edges 5 and 6 # are descendants of node 7): edgelabels() # Use find_descendant_edges to show that edges # 5 and 6 are descendants of node 7: find_descendant_edges(n = 7, tree = tree)