op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span></code></pre></div>
    </div>

    <div class="section level2">
    <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>
    <dl><dt>agg_mat</dt>
<dd><p>A (\(n_a \times n_b\)) numeric matrix representing the cross-sectional
aggregation matrix. It maps the \(n_b\) bottom-level (free)
variables into the \(n_a\) upper (constrained) variables.</p></dd>


<dt>more_info</dt>
<dd><p>If <code>TRUE</cod