MediumTime Seriests-254

Promotion Feature Effect

Problem

Apply a promotion lift to base demand: base_demand * (1 + lift * promo_flag).

promo_flag is 0 or 1, so the lift only applies during promotions. Return the adjusted demand.

Hint

A negative lift models a cannibalization or price increase effect.

case 1

in: [100,0.2,1]

expected: 120

case 2

in: [100,0.2,0]

expected: 100

case 3

in: [0,0.5,1]

expected: 0

case 4

in: [50,-0.1,1]

expected: 45

Starter codePython

def promotion_feature_effect(base_demand, lift, promo_flag):
    # Your code here
    pass

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