【莫烦Python】Numpy & Pandas (数据处理教程) pandas plot画图

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

# plot data

#Series  展示出来是线性的数据
data = pd.Series(np.random.randn(1000),index=np.arange(1000))
data = data.cumsum()
data.plot()
plt.show()

# DataFrame
data = pd.DataFrame(np.random.randn(1000,4),index=np.arange(1000),columns=list('ABCD'))
data = data.cumsum() 
data.plot() 将数据显示在图像上
plt.show() 相当于print，显示出来

可以上网查阅资料，自定义图像的线

# plot ,methods:
ax =data.plot.scatter(x='A' ,y='B', color='DarkBlue' , label='Class 1')
data.plot.scatter(x='A', y='C', color='DarkGreen', label='Class 2')
plt.show()