擅长:python、mysql、java
<p>你需要<a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.pivot.html" rel="nofollow noreferrer">^{<cd1>}</a>:</p>
<pre><code>df = df.pivot(index='parent_male', columns='parent_female', values='offsprings')
</code></pre>
<p>如果获取错误:</p>
<blockquote>
<p>ValueError: Index contains duplicate entries, cannot reshape</p>
</blockquote>
<p>使用<a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.pivot_table.html" rel="nofollow noreferrer">^{<cd2>}</a></p>
<p>所以最终的解决方案是:</p>
^{2}$