/r/base/list.html" class="external-link">list</a></span><span class="op">(</span><span class="op">)</span>
<span class="op">)</span></code></pre></div>
    </div>

    <div id="arguments">
    <h2>Arguments</h2>
    <dl><dt>data</dt>
<dd><p>A “mash” data object.</p></dd>


<dt>factors</dt>
<dd><p>If <code>factors = "default"</code>, the factors and
loadings are both unconstrained. If <code>factors = "nonneg"</code>, the
factors are constrained to be non-negative, and the loadings are
unconstrained.</p><