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cblavier/gist:992156

Created May 25, 2011 22:37
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How can i sort an array that includes similar items by number of those similar items ?
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gistfile1.rb
array = ["a", "b", "b", "a", "c", "b"]
occurences = array.inject(Hash.new(0)) { |h,k| h[k] += 1; h }
array.sort_by { |k| occurences[k] }
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