Re: [igraph] Network with directed and undirected edges

[Dieckmann, Anna]

Thanks a lot for the help. I've chosen the solution to replace a undirected 
edge with two directed ones.

Best, Anna

Am 07.05.2012 um 16:01 schrieb "Gábor Csárdi" <address@hidden>:

> On Fri, May 4, 2012 at 5:11 PM, Tamás Nepusz <address@hidden> wrote:
>>> I've to build a protein-protein-interaction network with mainly undirected 
>>> but also some directed edges. Is there any way to build such a network with 
>>> igraph?
>> 
>> I think that in most cases, you can simply replace an A---B undirected edge 
>> with a pair of directed edges: A --> B and B --> A. igraph cannot handle 
>> mixed undirected and directed edges within the same graph, so this is your 
>> only option if you want to stick to igraph.
> 
> The other option would be to mark different edge types with edge
> attributes. This works if you want to represent the network within
> igraph, but you need to be careful with the different algorithms and
> how exactly they consider edge directions.
> 
> Gabor
> 
>> --
>> T.
>> 
>> 
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> 
> 
> 
> -- 
> Gabor Csardi <address@hidden>     MTA KFKI RMKI
> 
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