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Re: [igraph] community_fastgreedy: Segmentation fault error

From: Gabor Csardi
Subject: Re: [igraph] community_fastgreedy: Segmentation fault error
Date: Thu, 8 May 2008 16:42:31 +0200
User-agent: Mutt/1.5.13 (2006-08-11)

On Tue, May 06, 2008 at 08:51:52PM +0200, Tamas Nepusz wrote:
> Hi Simone,
> >When I use the function "community_fastgreedy" I get the message  
> >"Segmentation fault".
> >[...]
> >Any suggestion to solve this issue?
> Is the graph connected? If so, break it down to subcomponents and  
> analyse them separately. (See Graph.decompose).

You mean unconnected. Btw. this should not be a problem
if i remember correctly.

> Does it have multiple edges or loop edges? If so, simplify it before  
> running the fast greedy community detection. (See Graph.simplify)

This could be a problem. Will be fixed in igraph 0.5.1.


> If any of these solved your issue, please let me know so I can make  
> sure it gets corrected in 0.5.1. If not, please send me a small test  
> graph on which I can reproduce the error.
> -- 
> Tamas
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Csardi Gabor <address@hidden>    UNIL DGM

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