Re: [igraph] RuntimeWarning: Non-zero return code from ARPACK routine

[Tamas Nepusz]

My best guess is that ARPACK doesn't like your network for some reason  
and it either fails to converge or something like that. If you send me  
your network, I'll try to reproduce it and see what's going on.

--
Tamas

On 2009.02.16., at 18:24, Chris Wj wrote:

> What would cause these warnings?
>
> ~: RuntimeWarning: Non-zero return code from ARPACK routine! at  
> centrality.c:414
>   return igraphG.hub_score()
> ~: RuntimeWarning: Non-zero return code from ARPACK routine! at  
> centrality.c:414
>   return igraphG.authority_score()
> ~: RuntimeWarning: Non-zero return code from ARPACK routine! at  
> centrality.c:207
>   return igraphG.eigenvector_centrality()
>
> -Chris
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