fsect1">
<a name="idm45874910973568"></a><h2>Description</h2>
<p>Uses Welfords's incremental algorithm to improve the numerical stability of mean and variance computation. </p>
<div class="refsect2">
<a name="idm45874910972768"></a><h3>
<a name="boost.histogram.accumulators.meanconstruct-copy-destruct"></a><code class="computeroutput">mean</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><a n