On Fri, Jan 25, 2013 at 12:56 AM, Tiago de Paula Peixoto <[email protected]> wrote: >> >> 1) extracting vertex clusters based on values in vertex property map? > > You can improve the performance by avoiding repeated python function > calls for each vertex. One way to do this is to use array > expressions. For instance, instead of doing: > > gv1 = gt.GraphView(g, vfilt = lambda v: v_prop[v] == cl_num) > > you could do: > > gv1 = gt.GraphView(g, vfilt = v_prop.a == cl_num) > > The second option should be significantly faster for larger graphs.
Awesome! Thanks a lot, this solved the problem. Where could I find more information about the v_prop.a == cl_num part? It might be useful in other cases of working with graph-tool, but first need to understand it. Is it a part of NumPy? Cheers, Uldis _______________________________________________ graph-tool mailing list [email protected] http://lists.skewed.de/mailman/listinfo/graph-tool
