Moving Average Forecast

Problem

Compute the trailing moving average of values with the given window size: the mean of each contiguous window of length window.

Return one average per complete window. If window is not positive or there are fewer values than the window, return [].

Hint

Slide a fixed-size window and average each slice.

case 1

in: [[1,2,3,4,5],3]

expected: [2,3,4]

case 2

in: [[1,2],2]

expected: [1.5]

case 3

in: [[1,2],3]

expected: []

case 4

in: [[2,4,6,8],2]

expected: [3,5,7]

Starter codePython

def moving_average(values, window):
    # Your code here
    pass

4 test cases · run your code against them in the editor