#19296: Generating function in FindStat interface
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Reporter: stumpc5 | Owner:
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-6.9
Component: packages: | Resolution:
optional | Merged in:
Keywords: FindStat, OEIS | Reviewers: Martin Rubey
Authors: Christian Stump | Work issues: document
Report Upstream: N/A | Commit:
Branch: | 4d6e9eb840d59a6b2b3b0446b1162d19eb6dc893
u/mantepse/generating_function_in_findstat_interface| Stopgaps:
Dependencies: |
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Comment (by stumpc5):
Okay, the following is really nice as you do it:
{{{
sage: g = Graph([[1,2],[2,3]])
sage: h = Graph([[1,3],[2,3]])
sage: i = Graph([[1,3],[2,3],[2,4]])
sage: findstat( [([g,h,i],[1,1,1])] )
---------------------------------------------------------------------------
...
ValueError: FindStat expects that every object occurs at most once.
}}}
There is no change to do that without your normalization procedure. I was
suggesting only to replace the {{{len(set(all_entries)) ==
len(all_entries)}}} by a short method to check that {{{all_entries}}} is a
duplicate-free list. That is a one-liner and does what we did before
slower but for non-hashable objects. But it does also not achieve the
normalization.
As long as the timings are okay (and I haven't seen any issues so far, but
sending a zillion might be a problem) I am happy with your solution...
--
Ticket URL: <http://trac.sagemath.org/ticket/19296#comment:74>
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