【数据挖掘】任务1：距离计算

a = (22, 1, 42, 10)
b = (20, 0, 36, 8)

import numpy as np


def euclidean(x, y):
    return np.sqrt(sum((x[i] - y[i]) ** 2 for i in range(len(x))))

euclidean(a, b)

6.708203932499369

def manhattan(x, y):
    return sum(np.abs(x[i] - y[i]) for i in range(len(x)))

manhattan(a, b)

11

def minkowski(x, y, p):
    return sum(np.abs(x[i] - y[i]) ** p for i in range(len(x))) ** (1 / p)

minkowski(a, b, 3)

6.153449493663682

def Supremum(x, y):
    return np.abs(max(x) - max(y))

Supremum(a, b)

6