Mega Code Archive

 

Categories / Ruby / Method

 

Taking Mean

def mean(array)   array.inject(0) { |sum, x| sum += x } / array.size.to_f end puts mean([1,2,3,4])                                  # => 2.5 puts mean([100,100,100,100.1])                        # => 100.025 puts mean([-100, 100])                                # => 0.0 puts mean([3,3,3,3])                                  # => 3.0