Hi
I am trying to extract communities of a graph with the
graph_tool.community.minimize_blockmodel_dl function and by following the
example on this page: http://graph-tool.skewed.de/static/doc/community.html.
Unfortunately, I get an error:
Traceback (most recent call last):
File "community.py", line 7, in <module>
graph_draw(g, pos=g.vp["pos"], vertex_fill_color=b, vertex_shape=b,
output="output_blocks_mdl.pdf")
File "/usr/lib/python2.7/dist-packages/graph_tool/__init__.py", line 995,
in __getitem__
val = self.get_func(self.g, key)
File "/usr/lib/python2.7/dist-packages/graph_tool/__init__.py", line 1458,
in <lambda>
lambda g, k: g.__properties[("v", k)],
KeyError: ('v', 'pos')
Here is my code:
from graph_tool.all import *
g = load_graph("graph.dot")
b, mdl = minimize_blockmodel_dl(g)
graph_draw(g, pos=g.vp["pos"], vertex_fill_color=b, vertex_shape=b,
output="output_blocks_mdl.pdf")
The dot file looks like this:
graph G {
167;
2037;
717;
2169;
166;
669;
2541;
1781;
1424;
167 -- 166;
2037 -- 669;
2037 -- 1424;
717 -- 166;
717 -- 167;
2169 -- 669;
2169 -- 2037;
2541 -- 166;
2541 -- 167;
2541 -- 669;
2541 -- 717;
2541 -- 1781;
2541 -- 2037;
}
Thnaks for your time.
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