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[igraph] How to transform nodes into sub-graphs

From: Raphael C
Subject: [igraph] How to transform nodes into sub-graphs
Date: Thu, 18 Jul 2013 15:53:26 +0100

In python I have a directed multi-graph g . I would like to make a new
graph h where each node in g is replaced by a small graph that depends
on the in and out degrees of the node it is replaced. The small graphs
will be connected to each by some rule that depends on how the
original nodes they replaced were connected (actually attributes of
the edges in the original graph).

I have written some code that goes through the nodes and makes a list
of replacement graphs.  How can I now make a new graph h from these
small graphs? My problem is that disjoint union will renumber the
vertices making it hard to work out which nodes to connect to which.


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