Temporal Hierarchy Aggregation

Problem

Aggregate a series at several temporal scales. For each scale k in scales, sum each complete group of k consecutive values and drop the trailing partial group.

Return a list with one list of sums per scale, in the same order as scales.

Hint

Scale 1 reproduces the original series as one-element sums.

Test cases

case 1

in: [[1,2,3,4,5,6],[1,3]]

expected: [[1,2,3,4,5,6],[6,15]]

case 2

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

expected: [[3],[]]

case 3

in: [[],[1]]

expected: [[]]

case 4

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

expected: [[3,7]]

Starter codePython

def temporal_hierarchy_aggregation(series, scales):
    # Your code here
    pass

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