matplotlib 散点图

应用场景：探究不同变量之间的内在关系

import matplotlib
import matplotlib.pyplot as plt
import numpy as np

if __name__ == "__main__":

    # 0、修改支持中文的字体
    plt.rcParams["font.sans-serif"] = ["SimHei"] # 设置字体
    plt.rcParams["axes.unicode_minus"] = False # 解决图像中 "-" 负号乱码问题

    x = [225.98, 247.07, 253.14, 457.85, 241.58, 301.01, 20.67, 288.64,
         163.56, 120.06, 207.83, 342.75, 147.9, 53.06, 224.72, 29.51,
         21.61, 483.21, 245.25, 399.25, 343.35]

    y = [196.63, 203.88, 210.75, 372.74, 202.41, 247.61, 24.9, 239.34,
         140.32, 104.15, 176.84, 288.23, 128.79, 49.64, 191.74, 33.1,
         30.74, 400.02, 205.35, 330.64, 283.45]

    plt.figure(figsize=(20, 8), dpi=80)

    plt.scatter(x, y)

    plt.show()