#10507: In Generic graphs, adjacency matrices with non-negative non-integral
entries are treated as "multi-edge" instead of "weighted"
----------------------------+-----------------------------------------------
Reporter: xqwang | Owner: xqwang
Type: defect | Status: new
Priority: minor | Milestone:
Component: graph theory | Keywords: weighted adjacency matrix
Author: xqwang | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
----------------------------+-----------------------------------------------
Changes (by xqwang):
* owner: jason, ncohen, rlm => xqwang
Comment:
This defect can be fixed by changing the following two lines of code in
$SAGE_HOME/local/lib/python/site-packages/sage/graphs/graph.py
918 e = int(e)[[BR]]
919 assert e >= 0
TO
918 e_flr = int(e)[[BR]]
919 assert (e_flr >= 0 and e_flr == e)
This change will make sure that if the adjacency matrix is non-integral
then its entries are treated as weights (in stead of # of edges).
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10507#comment:1>
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