擅长:python、mysql、java
<p>只要做:</p>
<pre><code>>>> df.groupby(['category', 'subcategory']).mean()
actual_price sell_price
category subcategory
Accessories ear 2.00 1.00
ring 3.60 3.50
Automotive wheel 34.40 31.00
Cloth men 7.75 7.75
women 9.25 7.00
>>>
</code></pre>