LLR Addition

Problem

Combine independent soft observations by adding their log-likelihood ratios. Return the sum of the list.

Hint

In the log domain, multiplying likelihood ratios becomes adding LLRs.

case 1

in: [[1,2]]

expected: 3

case 2

in: [[-1,1]]

expected: 0

case 3

in: [[0.5]]

expected: 0.5

case 4

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

expected: 0

Starter codePython

def llr_add(llrs):
    # Your code here
    pass

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