#19002: Change behavior for vacancy numbers
-------------------------------------+-------------------------------------
Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.9
Component: combinatorics | Resolution:
Keywords: rigged | Merged in:
configurations | Reviewers:
Authors: Travis Scrimshaw | Work issues:
Report Upstream: N/A | Commit:
Branch: | c1eea6f06caa11b6d3a20ed7ca357b523e45b1b2
public/rigged_configurations/vacancy_numbers-19002| Stopgaps:
Dependencies: |
-------------------------------------+-------------------------------------
Comment (by aschilling):
Replying to [comment:1 tscrim]:
> I kinda wanted that 19000 ticket number. :P
Besides the ticket number, the numbering of the rigged partitions seems to
be off
{{{
sage: RC = RiggedConfigurations(['D',8,1],[[8,1],[6,3]])
sage: H = RC.module_generators
sage: rc = H[34]
sage: rc
(/)
0[ ]0
0[ ]0
0[ ]0
0[ ]0
0[ ]0
0[ ]0
0[ ]0
0[ ]0
0[ ]0
0[ ]0
0[ ][ ]0
0[ ]0
0[ ]0
0[ ]0
0[ ]0
0[ ][ ]0
1[ ]1
0[ ]0
0[ ]0
0[ ]0
sage: rc[8]
---------------------------------------------------------------------------
IndexError Traceback (most recent call
last)
<ipython-input-28-f31668b6dd44> in <module>()
----> 1 rc[Integer(8)]
/Applications/sage/src/sage/structure/list_clone.pyx in
sage.structure.list_clone.ClonableArray.__getitem__
(/Applications/sage/src/build/cythonized/sage/structure/list_clone.c:4586)()
651 if isinstance(key, slice):
652 self._list[key.start:key.stop:key.step]
--> 653 return self._list[key]
654
655 def __setitem__(self, int key, value):
IndexError: list index out of range
}}}
I guess the indexing for `a` starts at 0 rather than `1`. But then the
documentation is misleading since it is not the math labeling. Also,
wouldn't it be useful to be able to do
{{{
rc.vacancy_number(a,i)
}}}
Best,
Anne
--
Ticket URL: <http://trac.sagemath.org/ticket/19002#comment:2>
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