Hi,<br>it looks like adjacency_matrix does not allow for adding of vertices at the moment. Maybe this should be stated somewhere in the docs (it is there implicitly, as there is no add_vertex function listed ... ). You don&#39;t need to add vertices if you supply the num-vertex parameter, they are already contained in your graph.
<br>hth<br>Moritz<br clear="all"><br>-- <br>Moritz Hilger<br>Combinatorial Optimization &amp; Graph Algorithms<br>TU Berlin<br>+49 30 314-25773