I am trying to make a diagonal numpy array from:
[1,2,3,4,5,6,7,8,9]
Expected result:
[[ 0, 0, 1, 0, 0],
[ 0, 0, 0, 2, 0],
[ 0, 0, 0, 0, 3],
[ 4, 0, 0, 0, 0],
[ 0, 5, 0, 0, 0],
[ 0, 0, 6, 0, 0],
[ 0, 0, 0, 7, 0],
[ 0, 0, 0, 0, 8],
[ 9, 0, 0, 0, 0]]
What would be an efficient way of doing this?