Another update from ingydotnet^djgoku

Task/Averages-Mode/Elixir/averages-mode.elixir

@@ -0,0 +1,14 @@
+defmodule Average do
+  def mode(list) do
+    gb = Enum.group_by(list, &(&1))
+    max = Enum.map(gb, fn {_,val} -> length(val) end) |> Enum.max
+    for {key,val} <- gb, length(val)==max, do: key
+  end
+end
+
+lists = [[3,1,4,1,5,9,2,6,5,3,5,8,9],
+         [1, 2, "qwe", "asd", 1, 2, "qwe", "asd", 2, "qwe"]]
+Enum.each(lists, fn list ->
+  IO.puts "mode: #{inspect list}"
+  IO.puts "   => #{inspect Average.mode(list)}"
+end)