Center Rows

Problem

Center each row of data by subtracting that row's mean.

Return the centered data as a list of rows of floats; every centered row sums to 0.

Hint

This is the row-wise analogue of centering columns.

case 1

in: [[[1,2,3],[4,5,6]]]

expected: [[-1,0,1],[-1,0,1]]

case 2

in: [[[1,1],[0,2]]]

expected: [[0,0],[-1,1]]

case 3

in: [[[5]]]

expected: [[0]]

case 4

in: [[[1,3],[2,4]]]

expected: [[-1,1],[-1,1]]

Starter codePython

def center_rows(data):
    # Your code here
    pass

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