擅长:python、mysql、java
<p>假设您已经将数据存储在pandas数据框df中,您可以使用pandas条形图来获得所需的结果</p>
<pre><code>df.groupby(['State', 'Category'])['Category'].count().unstack().plot(kind='bar', stacked=True)
</code></pre>
<p>您可以从pandas和matplotlib文档中获得有关条形图的更多信息</p>
<p><a href="https://matplotlib.org/3.1.1/gallery/lines_bars_and_markers/bar_stacked.html" rel="nofollow noreferrer">Matplotlib stacked bar chart</a></p>
<p><a href="https://pandas.pydata.org/pandas-docs/version/0.23/generated/pandas.DataFrame.plot.bar.html" rel="nofollow noreferrer">Pandas bar chart</a></p>