擅长:python、mysql、java
<p>如果数据帧的标签相同,则不需要合并</p>
<pre><code>(df1.set_index(['Name', 'Event'])['Factor1'] * df2.set_index(['Name', 'Event'])['Factor2']).reset_index(name = 'FactorResult')
Name Event FactorResult
0 John A 2.4
1 John B 1.5
2 Ken A 3.0
</code></pre>