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> -----Original Message-----
> From: Chris McMahon [mailto:christopher.mcmahon / gmail.com] 
> Sent: Friday, September 07, 2007 10:40 AM
> To: ruby-talk ML
> Subject: array handling advice
> 
> 
> There is probably a simple way to do this, but I'm drawing a blank:
> 
> I have an arbitrarily large input array, like
> 
> input = ['a','b','c','d','e','f','g']
> 
> and three target arrays like
> 
> targ_one = []
> targ_two = []
> targ_three = []
> 
> I want to deal out the elements of this array into three target arrays
> so they end up like
> 
> ['a','d','g']
> ['b','e']
> ['c','f']
> 
> It seems there should be an elegant way to do this, but I haven't hit
> on it.  Suggestions would be welcome.
> 

irb(main):001:0> a = [1,2,3,4,5,6,7,8,9]
=> [1, 2, 3, 4, 5, 6, 7, 8, 9]
irb(main):002:0> b = [[], [], []]
=> [[], [], []]
irb(main):003:0> a.inject(0){|bucket, item| b[bucket] << item; bucket < 2 ?
bucket + 1 : 0}
=> 0
irb(main):004:0> b
=> [[1, 4, 7], [2, 5, 8], [3, 6, 9]]
irb(main):005:0> 

Though I don't know if that would be considered elegant.

HTH,

FElix

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