擅长:python、mysql、java
<p>我添加的唯一变化是能够按姓名计数和年龄排序。你知道吗</p>
<pre><code> df['name_count'] = df['name'].map(df['name'].value_counts())
df = df.sort_values(by=['name_count', 'age'],
ascending=[False,True]).drop('name_count', axis=1)
df.reset_index(drop=True)
name age
0 Paul 12
1 Paul 36
2 Paul 66
3 Michael 45
4 Michael 100
5 Ryan 17
</code></pre>