Find most common string in an array

Question

I have this array, for example (the size is variable):

   x = [\"1.111\", \"1.122\", \"1.250\", \"1.111\"]

and I need to find the most comm

Answer 1

Using the default value feature of hashes:

>> x = ["1.111", "1.122", "1.250", "1.111"]
>> h = Hash.new(0)
>> x.each{|i| h[i] += 1 }
>> h.max{|a,b| a[1] <=> b[1] }
["1.111", 2]