擅长:python、mysql、java
<p>替换格式已关闭</p>
<pre><code>In [21]: df = pd.DataFrame({'a':['Small', 'Medium', 'High']})
In [22]: df
Out[22]:
a
0 Small
1 Medium
2 High
[3 rows x 1 columns]
In [23]: df.replace({'a' : { 'Medium' : 2, 'Small' : 1, 'High' : 3 }})
Out[23]:
a
0 1
1 2
2 3
[3 rows x 1 columns]
</code></pre>