MediumTime Seriests-158

Forecast Fan Chart Quantiles

Problem

Build fan chart quantile levels from a forecast distribution: for each z in z_list return mean + z * sigma.

Return an empty list when z_list is empty.

Hint

Each quantile is a point on the normal forecast distribution.

case 1

in: [0,1,[-1.96,0,1.96]]

expected: [-1.96,0,1.96]

case 2

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

expected: [6,14]

case 3

in: [5,0,[-1,1]]

expected: [5,5]

case 4

in: [0,1.5,[]]

expected: []

Starter codePython

def fan_chart_quantiles(mean, sigma, z_list):
    # Your code here
    pass

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