Important: The networks package has been deprecated.  Use the superseding package GraphTheory instead.

This procedure deletes loops in G and replaces multiple edges with a single edge of capacity equal to the combined capacities of the old edges.

A copy of the graph should be made using duplicate() if you wish to preserve the structure of the original graph.

The modified graph G is also returned as the value of the procedure call.

This routine is normally loaded via the command with(networks) but may also be referenced using the full name networks[gsimp](...).