python3 折线图上如何显示特殊数据

Question

如题所述

Answer 1

# encoding=utf-8

import matplotlib.pyplot as plt

# 月份

x1 = ['2017-01', '2017-02', '2017-03', '2017-04', '2017-05', '2017-06', '2017-07', '2017-08',

'2017-09', '2017-10', '2017-11', '2017-12']

# 体重

y1 = [86, 85, 84, 80, 75, 70, 70, 74, 78, 70, 74, 80]

# 设置画布大小

plt.figure(figsize=(16, 4))

# 标题

plt.title("my weight")

# 数据

plt.plot(x1, y1, label='weight changes', linewidth=3, color='r', marker='o',

markerfacecolor='blue', markersize=20)

# 横坐标描述

plt.xlabel('month')

# 纵坐标描述

plt.ylabel('weight')

# 设置数字标签

for a, b in zip(x1, y1):

plt.text(a, b, b, ha='center', va='bottom', fontsize=20)

plt.legend()

plt.show()