It's because the graph definition in graph tool by default is directed. Declare your graph as myGraph = Graph (directed=False)
On Mon, Jan 7, 2019, 23:49 Christopher Morris < christopher.mor...@tu-dortmund.de wrote: > Given an *undirected* graph g with four vertices, I add edges by > > g.add_edge_list([(0, 1), (0, 2), (0, 3), (1, 0), (1, 2), (1, 3), (2, 0), > (2, 1), (2, 3), (3, 0), (3, 1), (3, 2)]) . > > When calling g.num_edges() the result is 12. In my opinion it should be > 6, as the graph is undirected? Any ideas? > > -- > Christopher Morris > Algorithm Engineering, > Department of Computer Science, > TU Dortmund University > > https://ls11-www.cs.tu-dortmund.de/staff/morris > > _______________________________________________ > graph-tool mailing list > graph-tool@skewed.de > https://lists.skewed.de/mailman/listinfo/graph-tool >
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