From: Yusuke ENDOH <mame@...>
Date: 2011-01-07T22:14:24+09:00
Subject: [ruby-core:34223] Re: [Ruby 1.9-Feature#4247][Open] New features for Array#sample, Array#choice

Hi.

2011/1/7 Benoit Daloze <eregontp@gmail.com>:
> Did you consider having another option to {each_,}sample to allow replacement ?
> Such as:
> ary.sample 3, replace: true

The word "replace" gives impression of modification, for those who
are familiar with programming and not familiar with statistics.
Especially, Ruby provides Array#replace.  For example, I imagine the
following behavior:

  ary = [1, 2, 3]
  p ary.sample(replace: true) #=> 1
  p ary #=> [2, 3]


> Or to follow combinations/permutations:
> ary.repeated_sample 3

Hmm.  Is each_repeated_sample OK?


> Off-topic:
> I think it would be nice if some ruby-dev/ruby-core discussions could be merged.
> Even if I cannot currently understand Japanese, I can at least read
> their "coded" ideas.
> I would see that as using the same topic, with both languages.

Interesting :-)

-- 
Yusuke Endoh <mame@tsg.ne.jp>