Matplotlib实例教程折线图

Posted 2021-10-16 K同学啊

前言

• 🔗 运行环境：python3
• 🚩 作者：K同学啊
• 📚 选自专栏：《Matplotlib教程》
• 🧿 优秀专栏：《Python入门100题》
• 🔥 推荐专栏：《小白入门深度学习》
• 🥇 精选专栏：《深度学习100例》

代码实现

import numpy as np
import matplotlib.pyplot as plt
 
y1 = [2.3, 3.6, 3.4, 4.6, 5.9, 6.6, 6.9]
y2 = [2  , 2.8, 2.1, 4.1, 4.5, 5.9, 6]
x = ["a","b","c","d","e","f","g"]
"""
绘制折线图方法plot
参数一：y轴
参数二：x轴
"""
# plt.plot(x, y,color='red')
plt.plot(x, y1, label="line L", alpha=0.8)
plt.plot(x, y2, label="line H", alpha=0.8)

plt.ylim(0,9)

plt.xlabel("x axis")
plt.ylabel("y axis")
plt.title("Line Graph Example")

for x, y1 in enumerate(y1):
    plt.text(x, y1, y1)

for x, y2 in enumerate(y2):
    plt.text(x, y2, y2)

plt.legend()    
plt.show()