Function z_norm

tests/naive.py:43–47

(a, axis=0)

def z_norm(a, axis=0):
    std = np.std(a, axis, keepdims=True)
    std = np.where(std > 0, std, 1.0)

    return (a - np.mean(a, axis, keepdims=True)) / std


def distance(a, b, axis=0, p=2.0):