This generic function returns the edges of a graph-like structure in a
two-line matrix. Each column represents an edge, its first line being the
source node and its second line being the destination node.
Usage
getEdges(g, ...)
Arguments
g
An object of a suitable class.
...
Some methods for this generic function may take
additional, optional arguments. At present none do.
Value
Returns a two line matrix with as much columns as there are edges in the graph..