#18137: Centrality betweenness in Sage
-------------------------+-------------------------------------------------
Reporter: | Owner:
ncohen | Status: needs_work
Type: | Milestone: sage-6.6
enhancement | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers:
theory | Work issues:
Keywords: | Commit:
Authors: | c84caef2c24cf2a42bf802c6d2e829886fd74149
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
public/18137 |
Dependencies: |
-------------------------+-------------------------------------------------
Changes (by dcoudert):
* status: needs_review => needs_work
Comment:
One issue:
{{{
sage: G = Graph()
sage: G.centrality_betweenness()
---------------------------------------------------------------------------
ValueError Traceback (most recent call
last)
...
ValueError: bitset capacity must be greater than 0
}}}
Did you know that your code is also working for multi-graphs?
{{{
sage: G = Graph(multiedges=True)
sage: G.add_edge(0,1)
sage: G.add_edge(0,1)
sage: G.add_edge(1,2)
sage: G.add_edge(2,3)
sage: G.add_edge(0,3)
sage: G.centrality_betweenness(exact=1)
{0: 2/9, 1: 2/9, 2: 1/9, 3: 1/9}
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/18137#comment:46>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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