From: Brian Candler <b.candler@...>
Date: 2010-10-21T17:39:31+09:00
Subject: Re: generating random argument lists

Robert Klemme wrote in post #956010:
> On Thu, Oct 21, 2010 at 8:11 AM, Y. NOBUOKA <nobuoka@r-definition.com>
> wrote:
>> rand(10).times do
>> arr = Array.new
>> rand(10).times { arr << rand(4) }
>> arrays << arr
>> end
>>
>> p arrays
>
> Or:
>
> arrays = Array.new rand 10 do
>   Array.new(rand 5) { rand 4 }
> end
>
> Kind regards
>
> robert

Or:

arrays = (1..rand(10)).map { (1..rand(5).map { rand(4)) } }

That also gives between 0 and 9 arrays, each with between 0 and 4 
elements, each element being between 0 and 3.

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