As of Version 10, most of the functionality of the Combinatorica package is built into the Wolfram System. >>


constructs a directed graph from a given undirected graph g by replacing each undirected edge in g by two directed edges pointing in opposite directions.


  • MakeDirected functionality is now available in the built-in Wolfram Language function DirectedGraph.
  • To use MakeDirected, you first need to load the Combinatorica Package using Needs["Combinatorica`"].
  • The local options associated with edges are not inherited by the corresponding directed edges.
  • Calling the function with the tag All, as MakeDirected[g,All], ensures that local options associated with each edge are inherited by both corresponding directed edges.

See Also

DirectedGraph  MakeUndirected  OrientGraph