pan class="va">m1</span>, useSc<span class="op">=</span><span class="cn">TRUE</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">pp</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/attr.html" class="external-link">attr</a></span><span class="op">(</span><span class="va">dd</span>,<span class="st">"optimum"</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="co">## extract variance-covariance and residua