er or not the
likelihood hessian constructed by automatic differentiation from
<strong>TMB</strong> is used during the optimization procedure by
providing it to the <code>hessian</code> argument of
<code><a href="https://rdrr.io/r/stats/nlminb.html" class="external-link">stats::nlminb</a></code>. The default is
<code>use.hessian=FALSE</code>. The argument has no effect if
<code>method=laplace</code> due to restrictions in
<strong>TMB</strong>/<strong>RTMB</strong>.</p>
<p>The effect of providing the hessian