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The Basics
Id: 131535
Status: resolved
Priority: 0/
Queue: Scalar-List-Utils
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Owner: Nobody in particular
Requestors: DBOOK [...] cpan.org
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Bug Information
Severity: (no value)
Broken in: (no value)
Fixed in: 1.54

History Show all quoted text
  Tue Jan 21 16:13:10 2020 DBOOK [...] cpan.org - Ticket created
Subject: "sample" or "choice" function
It would be nice to have a function that returns a random element from the list. It could also be extended to allow specifying a number of random elements to return in one call, and whether to allow repeats - or just always disallow repeats, so the behavior of allowing repeats is implemented by calling the function multiple times. my @random_three = sample 3, @items; The only similar precedent I can find at the moment is the python "choice" and "choices" functions. https://docs.python.org/3/library/random.html#random.choice
  Wed Jan 22 10:34:36 2020 DBOOK [...] cpan.org - Correspondence added
On Tue Jan 21 16:13:10 2020, DBOOK wrote: Show quoted text
> It would be nice to have a function that returns a random element from > the list. It could also be extended to allow specifying a number of > random elements to return in one call, and whether to allow repeats - > or just always disallow repeats, so the behavior of allowing repeats > is implemented by calling the function multiple times. > > my @random_three = sample 3, @items; > > The only similar precedent I can find at the moment is the python > "choice" and "choices" functions. > https://docs.python.org/3/library/random.html#random.choice
It appears there is an existing attempt at this concept: https://github.com/Dual-Life/Scalar-List-Utils/pull/43
  Fri Jan 24 09:18:30 2020 haarg [...] haarg.org - Correspondence added
Example implementation via List::Util::PP: https://github.com/haarg/List-Util-MaybeXS/tree/sample
  Fri Jan 24 09:18:31 2020 The RT System itself - Status changed from 'new' to 'open'
  Mon Jan 27 20:17:45 2020 leonerd-cpan [...] leonerd.org.uk - Correspondence added
An initial attempt: https://github.com/Dual-Life/Scalar-List-Utils/tree/leonerd/sample I'd still like to get a consideration of $RAND (RT 131536) in before I commit it though. -- Paul Evans
  Wed Jan 29 09:28:03 2020 leonerd-cpan [...] leonerd.org.uk - Correspondence added
On Mon Jan 27 20:17:45 2020, PEVANS wrote: Show quoted text
> An initial attempt: > > https://github.com/Dual-Life/Scalar-List-Utils/tree/leonerd/sample > > I'd still like to get a consideration of $RAND (RT 131536) in before I > commit it though.
Now handles $RAND. Awaiting CI tests -- Paul Evans
  Wed Jan 29 10:07:06 2020 leonerd-cpan [...] leonerd.org.uk - Correspondence added
Ready for review https://github.com/Dual-Life/Scalar-List-Utils/pull/86 -- Paul Evans
  Fri Jan 31 07:29:52 2020 leonerd-cpan [...] leonerd.org.uk - Correspondence added
Merged -- Paul Evans
  Fri Jan 31 07:29:53 2020 leonerd-cpan [...] leonerd.org.uk - Status changed from 'open' to 'patched'
  Sun Feb 02 19:15:14 2020 leonerd-cpan [...] leonerd.org.uk - Correspondence added
This is now on CPAN as part of 1.54 -- Paul Evans
  Sun Feb 02 19:15:15 2020 leonerd-cpan [...] leonerd.org.uk - Status changed from 'patched' to 'resolved'
  Sun Feb 02 19:15:15 2020 leonerd-cpan [...] leonerd.org.uk - Fixed in 1.54 added