Created
June 7, 2013 20:03
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Write a method mode which takes an Array of numbers as its input and returns an Array of the most frequent values. If there's only one most-frequent value, it returns a single-element Array.
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| def mode(array) | |
| hash = Hash.new(0) | |
| array.each { |elem| hash[elem] += 1 } | |
| hash.keep_if { |k, v| v == hash.values.max }.keys | |
| end |
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