擅长:python、mysql、java
<p>你应该看看<a href="http://pandas.pydata.org" rel="noreferrer">pandas</a>。例如:</p>
<pre><code>import pandas as pd
import numpy as np
# some sample data
ts = pd.Series(np.random.randn(1000), index=pd.date_range('1/1/2000', periods=1000)).cumsum()
#plot the time series
ts.plot(style='k--')
# calculate a 60 day rolling mean and plot
pd.rolling_mean(ts, 60).plot(style='k')
# add the 20 day rolling variance:
pd.rolling_std(ts, 20).plot(style='b')
</code></pre>
<p><img src="https://i.stack.imgur.com/93xCN.png" alt="enter image description here"/></p>