examples/rosettacode/arithmetic_mean.nit

   1 #!/usr/bin/env nit
   2 #
   3 # This file is part of NIT ( http://www.nitlanguage.org ).
   4 # This program is public domain
   5
   6 # Task: Arithmetic mean
   7 # SEE: <http://rosettacode.org/wiki/Averages/Arithmetic_mean>
   8 module arithmetic_mean
   9
  10 # Computes the meam or the `array` values.
  11 fun mean(array: Array[Float]): Float do
  12         var sum = 0.0
  13         if array.is_empty then return sum
  14         for i in array do sum += i
  15         return sum / array.length.to_f
  16 end
  17
  18 print mean([3.0, 1.0, 4.0, 1.0, 5.0, 9.0])
  19 print mean([3.0, 1.0, 4.0, 1.0, 5.0])
  20 print mean([3.0, 1.0, 4.0, 1.0])
  21 print mean([3.0, 1.0, 4.0])
  22 print mean([3.0, 1.0])
  23 print mean([3.0])
  24 print mean(new Array[Float])