 6:     31992.548:  1.78031</span></span>
<span><span class="co">#&gt;   7:     31992.548:  1.78032</span></span>
<span><span class="fu"><a href="https://rdrr.io/r/base/summary.html" class="external-link">summary</a></span><span class="op">(</span><span class="va">theta_1</span><span class="op">)</span></span>
<span><span class="co">#&gt; _______________________________________________________________</span></span>
<span><span class="co">#&gt; Optimization routine: nlminb </span></span>
<span><span class="c