`numpy.matrixlib.defmatrix:matrix.max`

Signature

def max(self, axis = None, out = None)

Return the maximum value along an axis.

This is the same as ndarray.max, but returns a matrix object where ndarray.max would return an ndarray.

x = np.matrix(np.arange(12).reshape((3,4))); x

✓

matrix([[ 0,  1,  2,  3],
        [ 4,  5,  6,  7],
        [ 8,  9, 10, 11]])

x.max()

✗

np.int64(11)

x.max(0)
x.max(1)

✓

matrix([[ 3],
        [ 7],
        [11]])