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michaeldv/snippet.rb

Forked from auser/snippet.rb
Created February 17, 2010 07:44
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snippet.rb
def mode(arr=[])
hsh = arr.inject(Hash.new(1)) { |hash, item| hash[item] += 1; hash }
max = hsh.values.max
hsh.inject([]) { |arr, item| arr << item[0] if item[1] >= max; arr}
end
p mode %w(a b a a b c dd e e e) # ["e", "a"]
p mode %w(a b a a b c dd e e) # ["a"]
p mode %w(snowboarding is more than fun. super fun.) # ["fun."]
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