<p>我的目标是将小df中的列标题添加到现有的大数据帧中,而无需手动键入名称</p>
<p>这是小数据帧</p>
<pre><code>veddra_term_code veddra_version veddra_term_name number_of_animals_affected accuracy
335 11 Emesis NaN NaN
142 11 Anaemia NOS NaN NaN
</code></pre>
<p>大数据帧与上述类似,但有四十列</p>
<p>这是我用来从dict中提取小数据帧的代码</p>
<pre class="lang-py prettyprint-override"><code>df = pd.DataFrame(reaction for result in d['results'] for reaction in result['reaction']) #get reaction data
df
</code></pre>