擅长:python、mysql、java
<p>从<code>Python 3.8</code>开始,标准库提供<a href="https://docs.python.org/3.8/library/statistics.html?highlight=normaldist#statistics.NormalDist" rel="nofollow noreferrer">^{<cd2>}</a>对象作为<a href="https://docs.python.org/3.8/library/statistics.html" rel="nofollow noreferrer">^{<cd3>}</a>模块的一部分。</p>
<p><code>NormalDist</code>可用于通过<a href="https://docs.python.org/3.8/library/statistics.html?highlight=normaldist#statistics.NormalDist.overlap" rel="nofollow noreferrer">^{<cd5>}</a>方法计算两个正态分布之间的重叠系数</strong>(<em>OVL</em>),该方法返回一个介于0.0和1.0之间的值,给出两个概率密度函数的重叠区域:</p>
<pre><code>from statistics import NormalDist
NormalDist(mu=2.5, sigma=1).overlap(NormalDist(mu=5.0, sigma=1))
# 0.2112995473337106
</code></pre>