擅长:python、mysql、java
<p>尝试:</p>
<pre><code>(studentSurvey.groupby(['Gender','Major'])
.value_counts()
.unstack('Major', fill_value=0)
)
</code></pre>
<p>或者您可以执行<code>crosstab</code>:</p>
<pre><code>pd.crosstab(studentSurvey['Gender'], studentSurvey['Major'])
</code></pre>