1、pandas可以用来画DataFrame和Series的图
如：
import numpy as np
import matplotlib.pyplot as plt
import pandas as pd
x = np.linspace(0, 1)
y = np.sin(4 * np.pi * x) * np.exp(-5 * x)
t=pd.DataFrame(y,index=x)
t.plot()
t.plot(kind='bar')
t.plot(kind='barh')
t.boxplot()箱型图