pandas读取每一列数据绘图的程序

import pandas as pd
import matplotlib.pyplot as plt

dataset = pd.read_csv('2018-01-02.csv',header = 0,index_col=0)
values = dataset.values
groups = [0,1,2,3]
i = 1
plt.figure(figsize=(8,8))
for group in groups:
    plt.subplot(len(groups),1,i)
    plt.plot(values[:,group])
    plt.title(dataset.columns[group])
    i+=1
plt.show()