擅长:python、mysql、java
<p>看起来您试图反转pd.get_假人、熔化或透视表可能会出错</p>
<p>这里是熔化法</p>
<p><code>df.melt(id_vars='Name', var_name='vehicle').query('value == 1').groupby('Name').agg({'vehicle': list})</code></p>
<pre><code> vehicle
Name
Doug [motorcycle, car]
Mike [car]
Sarah [motorcycle, unicycle]
</code></pre>