擅长:python、mysql、java
<p>我前面的答案中显示的方法现在已被弃用</p>
<p>相反,最好使用<code>pandas.Categorical</code>,如图所示<a href="https://pandas.pydata.org/pandas-docs/stable/generated/pandas.Categorical.html" rel="nofollow noreferrer">here</a></p>
<p>因此:</p>
<pre><code>list_ordering = ["Likely Supporter","GOTV","Persuasion","Persuasion+GOTV"]
df["target"] = pd.Categorical(df["target"], categories=list_ordering)
</code></pre>