Data update

Task/Statistics-Basic/Elixir/statistics-basic.elixir

@@ -1,27 +0,0 @@
-defmodule Statistics do
-  def basic(n) do
-    {sum, sum2, hist} = generate(n)
-    mean = sum / n
-    stddev = :math.sqrt(sum2 / n - mean*mean)
-
-    IO.puts "size:   #{n}"
-    IO.puts "mean:   #{mean}"
-    IO.puts "stddev: #{stddev}"
-    Enum.each(0..9, fn i ->
-      :io.fwrite "~.1f:~s~n", [0.1*i, String.duplicate("=", trunc(500 * hist[i] / n))]
-    end)
-    IO.puts ""
-  end
-
-  defp generate(n) do
-    hist = for i <- 0..9, into: %{}, do: {i,0}
-    Enum.reduce(1..n, {0, 0, hist}, fn _,{sum, sum2, h} ->
-      r = :rand.uniform
-      {sum+r, sum2+r*r, Map.update!(h, trunc(10*r), &(&1+1))}
-    end)
-  end
-end
-
-Enum.each([100,1000,10000], fn n ->
-  Statistics.basic(n)
-end)