【Python】Matplotlib绘制散点图

# -*- coding: utf-8 -*-

import numpy as np

import matplotlib.pyplot as plt

import matplotlib

matplotlib.rcParams['font.sans-serif'] = ['SimHei']

matplotlib.rcParams['axes.unicode_minus'] = False

x = np.arange(1, 10)

y = x

fig = plt.figure()

plt.title("散点图")

plt.xlabel('X')

plt.ylabel('Y')

plt.scatter(x, y, c='red', marker='o')

plt.legend('x')

plt.show()

# -*- coding: utf-8 -*-

import numpy as np

import matplotlib.pyplot as plt

import matplotlib

matplotlib.rcParams['font.sans-serif'] = ['SimHei']

matplotlib.rcParams['axes.unicode_minus'] = False

x = np.random.normal(0, 1, 1024)

y = np.random.normal(0, 1, 1024)

plt.figure(num=5, figsize=(8, 4))

plt.title("漂亮的散点图")

plt.xlim((-1.5, 1.5))

plt.ylim((-1.5, 1.5))

plt.xlabel('X')

plt.ylabel('Y')

plt.xticks(())

plt.yticks(())

plt.scatter(x, y, s=75, c="red", alpha=0.5)

plt.show()