</span> is the number of
observation equations.</p>
<p><strong>Note:</strong> The significance level will be higher than the
chosen if there are missing observations in some indices of <span class="math inline">\(i\)</span> for systems with multiple observation
equations.</p>
</div>
<div class="section level3">
<h3 id="argument-use_hessian">Argument: <code>use_hessian</code><a class="anchor" aria-label="anchor" href="#argument-use_hessian"></a>
</h3>
<hr>
<p>This argument is a boolean which determines wheth