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New issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
multiset_partitions does not seem to be generating all possible partit
Updates:
Status: Valid
Labels: WrongResult Combinatorics
Comment #1 on issue 3501 by asmeu...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
(No comment was entered for this change.)
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Comment #2 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
This is very pertinent issue since I just committed kbins which depends on
this. I think this is different, because an empt
Comment #3 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Does this look better?
[2, 2, 2, 84]
[2, 2, 3, 56]
[2, 2, 4, 42]
[2, 2, 4, 42]
[2, 2, 4, 42]
[2, 2, 6, 28]
[2, 2, 6, 28]
[2,
Comment #4 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
The relevant Knuth reference is Algorithm M, (Multipartitions in decreasing
lexicographic order), page 429 of volume 4
Comment #5 on issue 3501 by asmeu...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Is there a combinatorial formula to count these? That could also serve as
a check.
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Comment #6 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Oops - scratch the Sage reference I gave at the end of comment #4. The
class subset.py in sage enumerates the *subset
Comment #7 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Here is a failing test for the partitions of range(5) into 2 groups:
Should be
for ai in a:
... print ai
...
((0, 1, 3,
Comment #8 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Could you post a picture/scan of the pertinent page? I don't have access to
it here.
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Updates:
Labels: NeedsReview smichr
Comment #9 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
I added a different routine. Perhaps the Knuth routine will find its way
back,
Updates:
Labels: -Priority-Medium Priority-Critical
Comment #10 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
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Comment #11 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Re:posting 8.
I was going to point you to the oracle himself. Knuth still has the
fasicles on his web page. See <
Comment #12 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
If 'ans' is the list of permutations that you want to make canonical, try
set( [tuple(sorted([tuple(sorted(j)) for j in i])
Comment #13 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
btw, thanks for the reference to the Knuth fascicle. I used a different
source for the new algorithm:
http://www.math.up
Comment #14 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Thanks for your implementation of https://github.com/sympy/sympy/pull/1658,
and for pointing me to the Wilf reference
Comment #15 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Can you explain what you mean by "exposing the core of your code as a set
partitions implementation"? I think I might get
Comment #16 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Sorry for any confusion. I am not using the terminology consistently and am
probably (still) a bit confused by the rel
Comment #17 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Thanks for your clarifying comments. multiset_partitions is now a clearing
house for any enumerations of sets (with or wi
Comment #18 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
I would like to have multiset working even if less than optimally. Is it ok
with you to commit what is there, pkrathmann2?
Comment #19 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
btw, the old multiset code didn't look at the values of the multiset.
Unless a routine does, I don't know how anything cou
Comment #20 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Re comment 17 - Great! With a general dispatcher routine, if/when
7.2.1.5m working, can be later integrated, for those
Comment #21 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Hello,
I have had a chance to look at the pull request, and perform some
testing. (I see that you are adding more com
Comment #22 on issue 3501 by asmeu...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Re your Git workflow: I don't know if git checkout sets up the branch to
track by default. See if git pull updates the b
Comment #23 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
git checkout -b kbins smichr/kbins
That's what I would do...looks good.
You *might* consider adding something lik
Comment #24 on issue 3501 by asmeu...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Your last line got cut off there.
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Comment #25 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
sorry...that was
timeit('RGS_enum(23)','from sympy import bell as RGS_enum', number=100)
0.0007009506225585938
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Comment #26 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Great! This looks good to commit. (With caveat that I am just
getting my feet wet with Sympy.)
Nits (which I don't n
Comment #27 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
OK, that's done now, too. Your feedback has been very helpful. Thank you.
Now if I can figure out why some of the tests ar
Updates:
Status: Fixed
Comment #28 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
It's in...all partitions are now generated.
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Comment #29 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
pkrathmann2: is there a chance you could look over PR
https://github.com/sympy/sympy/pull/1666 ? It fixes (with pretty sim
Comment #30 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
It's in...all partitions are now generated.
Awesome. Congratulations, this has been fun.
... look over PR https://
Updates:
Status: Valid
Comment #31 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Good news: round 2! If you could carefully look over
https://github.com/sympy/sympy/pull/1
Updates:
Status: Fixed
Comment #32 on issue 3501 by smi...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
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Comment #33 on issue 3501 by pkrathma...@gmail.com: Missing partitions in
sympy.utilities.iterables.multiset_partitions
http://code.google.com/p/sympy/issues/detail?id=3501
Entered comments (on the github pages) for pull requests 1671 and 1666.
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