NAME
    Acme::CPANModules::PickingRandomItemsFromList - Picking random items
    from a list

VERSION
    This document describes version 0.004 of
    Acme::CPANModules::PickingRandomItemsFromList (from Perl distribution
    Acme-CPANModules-PickingRandomItemsFromList), released on 2023-06-20.

DESCRIPTION
    If you are picking random lines from a file, there's a separate
    CPANModules list for it: Acme::CPANModules::PickingRandomLinesFromFile.

    1. Picking a single item, with equal probability

    If you only want to pick a single item, with equal probability, you can
    simply get a random element from an array using the $ary[rand @ary]
    idiom.

    2. Picking multiple items, with equal probability

    2a. Picking multiple items, with equal probability, duplicates allowed

    If you want to allow duplicates, you can repeatedly pick random elements
    from an array using the $ary[rand @ary] idiom.

    2b. Picking multiple items, with equal probability, duplicates not
    allowed

    If you do not want to allow duplicates, there are several alternatives:

    List::Util (from version 1.54, 2020-02-02) provides "sample()". If you
    use an older version, you can use "shuffle()" then get as many number of
    samples as you need from the first elements of the array using slice
    (@shuffled[0..$num_wanted-1]) or "head()".

    List::MoreUtils also provides "samples()".

    Keywords: sample, sampling.

    3. Picking item(s), with weights

    If you want to assign different weights to different items (so one item
    might be picked more likely), you can use one of these modules:

    Array::Sample::WeightedRandom offers sampling without replacement (not
    allowing duplicates) or with replacement (allowing duplicates).

    Random::Skew.

    Data::Random::Weighted currently can only pick a single item.

ACME::CPANMODULES ENTRIES
    List::Util
        Author: PEVANS <https://metacpan.org/author/PEVANS>

    List::MoreUtils
        Author: REHSACK <https://metacpan.org/author/REHSACK>

    Array::Sample::WeightedRandom
        Author: PERLANCAR <https://metacpan.org/author/PERLANCAR>

    Random::Skew
    Data::Random::Weighted
        Author: GEISTBERG <https://metacpan.org/author/GEISTBERG>

FAQ
  What is an Acme::CPANModules::* module?
    An Acme::CPANModules::* module, like this module, contains just a list
    of module names that share a common characteristics. It is a way to
    categorize modules and document CPAN. See Acme::CPANModules for more
    details.

  What are ways to use this Acme::CPANModules module?
    Aside from reading this Acme::CPANModules module's POD documentation,
    you can install all the listed modules (entries) using cpanm-cpanmodules
    script (from App::cpanm::cpanmodules distribution):

     % cpanm-cpanmodules -n PickingRandomItemsFromList

    Alternatively you can use the cpanmodules CLI (from App::cpanmodules
    distribution):

        % cpanmodules ls-entries PickingRandomItemsFromList | cpanm -n

    or Acme::CM::Get:

        % perl -MAcme::CM::Get=PickingRandomItemsFromList -E'say $_->{module} for @{ $LIST->{entries} }' | cpanm -n

    or directly:

        % perl -MAcme::CPANModules::PickingRandomItemsFromList -E'say $_->{module} for @{ $Acme::CPANModules::PickingRandomItemsFromList::LIST->{entries} }' | cpanm -n

    This Acme::CPANModules module also helps lcpan produce a more meaningful
    result for "lcpan related-mods" command when it comes to finding related
    modules for the modules listed in this Acme::CPANModules module. See
    App::lcpan::Cmd::related_mods for more details on how "related modules"
    are found.

HOMEPAGE
    Please visit the project's homepage at
    <https://metacpan.org/release/Acme-CPANModules-PickingRandomItemsFromLis
    t>.

SOURCE
    Source repository is at
    <https://github.com/perlancar/perl-Acme-CPANModules-PickingRandomItemsFr
    omList>.

SEE ALSO
    Bencher::Scenario::SamplingFromList for the benchmark, which we will
    probably include in the future.

    Related lists: Acme::CPANModules::Sampling

    Acme::CPANModules - about the Acme::CPANModules namespace

    cpanmodules - CLI tool to let you browse/view the lists

AUTHOR
    perlancar <perlancar@cpan.org>

CONTRIBUTING
    To contribute, you can send patches by email/via RT, or send pull
    requests on GitHub.

    Most of the time, you don't need to build the distribution yourself. You
    can simply modify the code, then test via:

     % prove -l

    If you want to build the distribution (e.g. to try to install it locally
    on your system), you can install Dist::Zilla,
    Dist::Zilla::PluginBundle::Author::PERLANCAR,
    Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two
    other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps
    required beyond that are considered a bug and can be reported to me.

COPYRIGHT AND LICENSE
    This software is copyright (c) 2023, 2021 by perlancar
    <perlancar@cpan.org>.

    This is free software; you can redistribute it and/or modify it under
    the same terms as the Perl 5 programming language system itself.

BUGS
    Please report any bugs or feature requests on the bugtracker website
    <https://rt.cpan.org/Public/Dist/Display.html?Name=Acme-CPANModules-Pick
    ingRandomItemsFromList>

    When submitting a bug or request, please include a test-file or a patch
    to an existing test-file that illustrates the bug or desired feature.