MediumTime Seriests-250

RevIN Denormalize

Problem

Invert reversible instance normalization: value * std + mean for each value.

Return the denormalized list, restoring the original level and scale.

Hint

The inverse uses the window statistics saved at normalization time.

case 1

in: [[0],5,2]

expected: [5]

case 2

in: [[-1,1],10,2]

expected: [8,12]

case 3

in: [[],1,1]

expected: []

case 4

in: [[0.5],0,1]

expected: [0.5]

Starter codePython

def revin_denormalize(normalized, mean, std):
    # Your code here
    pass

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