擅长:python、mysql、java
<p>它被称为<code>binning</code>,所以使用<code>pd.cut</code>,即</p>
<pre><code>df['new'] = pd.cut(df['Famsize'],bins=[0,1,4,np.inf],labels=['single','small','large'])
</code></pre>
<p>输出:</p>
<pre>
Famsize FamsizeDisc new
0 1 single single
1 2 small small
2 5 large large
</pre>