phylobase (version 0.8.12)

edges: Edges accessors

Description

Access or modify information about the edges.

Usage

edges(x, ...)
# S4 method for phylo4
edges(x, drop.root = FALSE)
edgeOrder(x, ...)
# S4 method for phylo4
edgeOrder(x)
internalEdges(x)
# S4 method for phylo4
internalEdges(x)
terminalEdges(x)
# S4 method for phylo4
terminalEdges(x)

Value

edges

returns the edge matrix that represent the ancestor-descendant relationships among the nodes of the tree.

edgeOrder

returns the order in which the edge matrix is in.

internalEdges

returns a logical vector indicating internal edges (edges that connect an internal node to another). This vector is named with the edgeId

.

terminalEdges

returns a logical vector indicating terminal edges (edges that connect an internal node to a tip). This vector is named with the edgeId

Arguments

x

a phylo4 or phylo4d object.

...

Optional arguments used by specific methods. (None used at present).

drop.root

logical (default FALSE), should the edge connecting the root be included in the edge matrix?

Author

Ben Bolker, Francois Michonneau, Thibaut Jombart

See Also

reorder, edgeId

Examples

   data(geospiza)
   edges(geospiza)
   edgeOrder(geospiza)
   geoPost <- reorder(geospiza, "postorder")
   edgeOrder(geoPost)
   ## with a binary tree this should always be true
   identical(!terminalEdges(geospiza), internalEdges(geospiza))