From: Jim Burgess <jack.zelig@...>
Date: 2009-10-05T18:24:49+09:00
Subject: Count the number of times an element occurs in an array

Hi,

I need to count the number of times an element occurs in an array.

At the moment I'm doing it like this:

a = ["a", "b", "a", "b", "b"]
b = a.uniq
c = []

0.upto(b.length-1) do |e|
   d = 0
   0.upto(a.length-1) do |f|
      if b[e] == a[f]
   d += 1
      end
   end
   c << d
end

print b, c
> ["a", "b"] [2, 3] 

This works, but seems really clumsy.
Can anyone give me any tips on what I could improve?
Cheers.
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