Hi folks,
I have got a graph with this detail:
> summary(g)
IGRAPH UN-- 7690383 7839216 --
attr: Ethnic.Group(v/c), Geographical.Area (v/c), Religion (v/c),
Major.Language (v/c)
I'd like to collapse/reduce my graph to a new graph, where the vertices
are grouped together according to their /Ethnic.Group/ attribute, for
instance, and then visualize the edges between them. As an example, all
vertices with a certain ethnicity, X, should be grouped together (the
size of the new vertex should correspond to the number of vertices with
X as their ethnicity), and the edge would also be weighted (the number
of links between ethnicity X and Y).
For visualization of the whole graph, I used Gephi which supports
grouping of vertices, but unfortunately my system can't handle such a
big graph - of 1G size. I'd like to reduce the graph using igraph, and
then export it to Gephi for visualization.
Thanks!
Cheers,
Ali
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