Re: [igraph] community clustering in python

[Kurt J]

Hi List,

For the record, somehow I was using igraph 0.4.2 - upgraded to 0.4.4
and the fastgreedy algorithm seems to work fine.  Thanks.

-Kurt J

On Nov 23, 2007 12:48 PM, Tamas Nepusz <address@hidden> wrote:
> Hi Kurt,
>
> Can you please send me an example graph by which I could reproduce the
> error on my computer?
>
> Thanks,
> --
> T.
>
>
> On 2007.11.23., at 13:44, Kurt J wrote:
>
> > Hi Tamas,
> >
> > Thanks for the tip, however simplifying doesn't seem to help...
> >
> >>>> from igraph import *
> >>>> G = Graph.Read('pr2graph.ml', format='graphml')
> >>>> G.to_undirected()
> >>>> sG = G.simplify()
> >>>> Lsv = sG.community_fastgreedy()
> > Bus error
> >
> > -Kurt J
> >
> >
> > On Nov 23, 2007 12:31 PM, Tamas Nepusz <address@hidden> wrote:
> >> Hi,
> >>
> >> Have you tried simplifying the graph before starting the community
> >> detection? Our former implementation did not work for graphs with
> >> multiple or loop edges. This was corrected recently in the dev branch
> >> and will be released officially as igraph 0.5 in a couple of weeks
> >> (possibly :)). So my suggestion is:
> >>
> >> G.to_undirected()
> >> G.simplify()
> >> Lsv = G.community_fastgreedy()
> >>
> >>> Should i just be using/learning R?
> >> I think the error exists in the R interface as well, since they both
> >> use the common C core.
> >>
> >> --
> >> T.
> >>
> >> On 2007.11.23., at 13:23, Kurt J wrote:
> >>
> >>> Hi,
> >>>
> >>> I was hoping to experiment  with some clustering using the python
> >>> interface to igraph.  The igraph implementation of the modularity
> >>> optimization gives me a bus error:
> >>>
> >>>>>> G.to_undirected()
> >>>>>> Lsv = G.community_fastgreedy()
> >>> Bus error
> >>>
> >>> on Python 2.4.3
> >>>
> >>>
> >>>
> >>> Cheers,
> >>> -Kurt J
> >>>
> >>>
> >>> _______________________________________________
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> >>> address@hidden
> >>> http://lists.nongnu.org/mailman/listinfo/igraph-help
> >>
> >>
> >>
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> >>
> >
> >
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>
>
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