如何在一个绘图中同时绘制3个绘图？

Question

我想在一个图中绘制3个数据集，以便比较它们

dataset2.plot(kind='scatter',x='time',y='Temp')

dataset27.plot(kind='scatter',x='teime1',y='Temp1')

dataset28.plot(kind='scatter',x='time2',y='Temp2')

请帮忙

Answer 1

请参阅文档here，了解可以使用df.plot()设置哪些参数

您需要创建3个子图并绘制到这些子图。例如，有一种方法可以做到这一点：

import matplotlib.pyplot as plt

fig = plt.figure(figsize=(12,4)) #create a figure with a 12 width, 4 length

ax1 = plt.subplot(131) #subplot with 1 row, 3 columns the 1st one
ax2 = plt.subplot(132) #subplot with 1 row, 3 columns the 2nd one
ax3 = plt.subplot(133) #subplot with 1 row, 3 columns the 3rd one


dataset2.plot(kind='scatter',x='time',y='Temp',ax=ax1)
dataset27.plot(kind='scatter',x='teime1',y='Temp1',ax=ax2)
dataset28.plot(kind='scatter',x='time2',y='Temp2',ax=ax3)

plt.show()

要将它们相互绘制在一起：

ax = plt.subplot(111) #1 subplot

dataset2.plot(kind='scatter',x='time',y='Temp',ax=ax)
dataset27.plot(kind='scatter',x='teime1',y='Temp1',ax=ax)
dataset28.plot(kind='scatter',x='time2',y='Temp2',ax=ax)