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Converted partition functions from tasks to iterators #4055

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merged 2 commits into from
Aug 14, 2013

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kmsquire
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  • Renamed integer_partitions -> partitions (multiple dispatch!)
  • Added partitions(n) variant to generate all integer partitions
  • Added npartitions, nsetpartitions functions
  • Updated docs

Notes

  • npartitions/nsetpartitions use manual memoizing to calculate the recurrence.
  • The npartitions/nsetpartitions might not be necessary to export. They're used by length.
  • These all might be better off in a package.

This should close #3989, except for the subsets function that Stefan suggested.

* Renamed integer_partitions -> partitions (multiple dispatch!)
* Added partitions(n) variant to generate all integer partitions
* Added npartitions, nsetpartitions functions
* Updated docs
Also speed up SetPartitions iteration
@StefanKarpinski
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The fact that you can construct a partitions type of object and then take its length maybe indicates that we don't need to export npartitions and such, but if npartiations and nsetpartitions could be collapsed into a single function, maybe it makes sense. I certainly don't think they warrant a package since they're so closely related to this functionality. The subset functionality I mentioned is possibly subsumed by combinations since combinations(s,k) gives the number of subsets of size k of the collection s. Perhaps with no second argument combinations(s) should iterate all the subsets of s?

StefanKarpinski added a commit that referenced this pull request Aug 14, 2013
Converted partition functions from tasks to iterators
@StefanKarpinski StefanKarpinski merged commit 9e1727c into master Aug 14, 2013
stevengj added a commit that referenced this pull request Aug 14, 2013
IanButterworth pushed a commit that referenced this pull request Oct 21, 2024
…b6e99 (#56261)

Stdlib: Pkg
URL: https://github.com/JuliaLang/Pkg.jl.git
Stdlib branch: release-1.11
Julia branch: backports-release-1.11
Old commit: aba90d22b
New commit: 9438b6e99
Julia version: 1.11.1
Pkg version: 1.11.0(Does not match)
Bump invoked by: @IanButterworth
Powered by:
[BumpStdlibs.jl](https://github.com/JuliaLang/BumpStdlibs.jl)

Diff:
JuliaLang/Pkg.jl@aba90d2...9438b6e

```
$ git log --oneline aba90d22b..9438b6e99
9438b6e99 Merge pull request #4055 from JuliaLang/backports-release-1.11
c83160aac REPLExt: use Base.isaccessibledir rather than isdir in completions (#4053)
7997ec320 REPLExt: run repl hint generation for modeswitch chars when not switching (#4054)
```

Co-authored-by: Dilum Aluthge <[email protected]>
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combinations, partitions functions should return iterators
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