outer¶
Outer-product between two vectors.
Parameters¶
-
u
Type → dict
-
v
Type → dict
Examples¶
import pprint
from river import utils
u = dict(enumerate((1, 2, 3)))
v = dict(enumerate((2, 4, 8)))
uTv = utils.math.outer(u, v)
pprint.pprint(uTv)
{(0, 0): 2,
(0, 1): 4,
(0, 2): 8,
(1, 0): 4,
(1, 1): 8,
(1, 2): 16,
(2, 0): 6,
(2, 1): 12,
(2, 2): 24}