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Re: [igraph] [DOC] Python neighbors() documentation reverses OUT/IN mean


From: Tamas Nepusz
Subject: Re: [igraph] [DOC] Python neighbors() documentation reverses OUT/IN meaning?
Date: Fri, 23 Jan 2015 13:24:02 +0100
User-agent: Mutt/1.5.23 (2014-03-12)

Hi,

Thanks for the report, this has now been fixed in the following commit:

https://github.com/igraph/python-igraph/commit/4581a57bb46c89d14cd82f27d53827cdbdffc04c

All the best,
Tamas

On 01/23, Matteo Fortini wrote:
> Hi,
> in the page
> http://igraph.org/python/doc/igraph.GraphBase-class.html#neighbors
> it's said
> 
>    Returns adjacent vertices to a given vertex.
> 
>    Parameters:
>    vertex - a vertex ID
>    mode - whether to return only predecessors (OUT), successors (IN) or
>    both (ALL).
> 
> It seems to me that it inverts the meaning between predecessors an
> successors.
> A quick test on igraph seems to confirm: if I get v from
> neighbors(u,mode=OUT) and I search for (v,u) i.e. v is a predecessor of u, I
> cannot find the edge, while the contrary works.
> 
> Thank you for this beautiful work,
> Matteo

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-- 
T.



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