Huber Weight

Problem

Return the Huber weight for a residual given a scale estimate: 1.0 when abs(residual) <= c*scale, otherwise c*scale/abs(residual). Return 0.0 when scale <= 0.

Hint

Huber weights downweight large residuals linearly.

Test cases

case 1

in: [1,1,1.345]

expected: 1

case 2

in: [2.69,1,1.345]

expected: 0.5

case 3

in: [0,1,1.345]

expected: 1

case 4

in: [5,0,1.345]

expected: 0

case 5

in: [1.345,1,1.345]

expected: 1

Starter codePython

def huber_weight(residual, scale, c):
    # Your code here
    pass

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