
From:  address@hidden 
Subject:  Re: [igraph] How to Generate scalefree network with the vertex's indegree and outdegree negatively correlated 
Date:  Fri, 4 Apr 2014 08:52:44 +0800 
Hi
I am sorry that I did not put the question clear.
The correlation between indegree and outdegree is different from the
assortativity coefficient.
The former one can be exsit in any type of directed graph but the latter
one are only in scalefree graph.
When we regard the indegree and outdegree of a vertex as two random
variables j and k,
if P(j, k) = P(j) * P(k), where P(j) means the probability of indegree=j,
then there is no correlation between indegree and outdegree.
if P(j, k) != P(j) * P(k), then indegree and outdegree are
correlated.
I want to generate ER graphs and scalefree graphs with the indegree and
outdegree correlated.
Is there any functions can do these?
best
Xueming
address@hidden From: Gábor
Csárdi
Date: 20140403 21:01
Subject: Re: [igraph] How to Generate scalefree network with
the vertex's indegree and outdegree negatively correlated Well, that's a little loosely defined. Maybe you want to sample
networks while conditioning on the degree distributions (or degree sequences)
and the assortativity coefficient. I am not sure how to do that, but there might
be some papers about it. I would search for 'generate networks assortativity
degree distribution': https://www.google.com/search?q=generate+networks+assortativity+degree+distribution
Gabor On Thu, Apr 3, 2014 at 4:28 AM, address@hidden <address@hidden> wrote:

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