.html">trend_analysis()</a></code> are very similar to the arguments for
<code><a href="../reference/change_analysis.html">change_analysis()</a></code>. One difference is that
<code><a href="../reference/trend_analysis.html">trend_analysis()</a></code> contains arguments that specify which
statistical model to apply to the estimates from each sample.</p>
</div>
</div>
<div class="section level2">
<h2 id="variance-estimation">Variance Estimation<a class="anchor" aria-label="anchor" href="#variance-estimation