#16370: OA(k,n) strongly regular graphs
-------------------------------------+-------------------------------------
Reporter: ncohen | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.3
Component: graph theory | Resolution:
Keywords: | Merged in:
Authors: Nathann Cohen | Reviewers: Vincent Delecroix
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/vdelecroix/16370 | bdae80af1b51e30d9bd823a8c9aba7af41325d3d
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Changes (by vbraun):
* status: positive_review => needs_work
Comment:
{{{
sage -t --long src/sage/graphs/generators/intersection.py
**********************************************************************
File "src/sage/graphs/generators/intersection.py", line 464, in
sage.graphs.generators.intersection.OrthogonalArrayBlockGraph
Failed example:
G = graphs.OrthogonalArrayBlockGraph(4,6)
Expected:
Traceback (most recent call last):
...
NotImplementedError: I don't know how to build this orthogonal array!
Got:
<BLANKLINE>
Traceback (most recent call last):
File "/home/release/Sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 480, in _run
self.execute(example, compiled, test.globs)
File "/home/release/Sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 839, in execute
exec compiled in globs
File "<doctest
sage.graphs.generators.intersection.OrthogonalArrayBlockGraph[20]>", line
1, in <module>
G = graphs.OrthogonalArrayBlockGraph(Integer(4),Integer(6))
File "/home/release/Sage/local/lib/python2.7/site-
packages/sage/graphs/generators/intersection.py", line 480, in
OrthogonalArrayBlockGraph
OA = orthogonal_array(k,n)
File "/home/release/Sage/local/lib/python2.7/site-
packages/sage/combinat/designs/orthogonal_arrays.py", line 857, in
orthogonal_array
raise NotImplementedError("I don't know how to build an
OA({},{})!".format(k,n))
NotImplementedError: I don't know how to build an OA(4,6)!
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/16370#comment:47>
Sage <http://www.sagemath.org>
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