Exercise: Calculating the array mode

gistfile1.rb

def mode(array)
  freq = []
  modes = []
  max_array = []
  array.each do |i|
    freq << array.count(i)
  end
  # Combining array and frequencies into a hash
  hash = Hash[array.zip(freq.map)]
  # Should get max value (frequency) of hash
  max_freq_key = hash.max_by { |k, v| v }[0]
  max_freq = hash[max_freq_key]
  hash.each do |key, value|
    if value == max_freq
      max_array << key
    end
  end
  max_array
end