擅长:python、mysql、java
<p><a href="https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.set_index.html" rel="nofollow noreferrer">https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.set_index.html</a></p>
<p><code>set_index</code>期望<code>keys</code>参数为<code>label or array-like or list of labels/arrays</code>。您告诉它使用2002列作为索引(如<code>anio</code>=<code>2001</code>)</p>
<p>尝试:</p>
<pre class="lang-py prettyprint-override"><code>maximosVerano.set_index("anio", inplace=True)
</code></pre>
<p>或</p>
<pre class="lang-py prettyprint-override"><code>maximosVerano.set_index(["anio"], inplace=True))
</code></pre>