   <div class="sourceCode"><pre class="sourceCode r"><code><span class="fu">ldfast</span><span class="op">(</span>
  <span class="va">gp</span>,
  type <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"r"</span>, <span class="st">"r2"</span>, <span class="st">"z"</span>, <span class="st">"D"</span>, <span class="st">"Dprime"</span><span class="op">)</span>,
  shrinkrr <span class="op">=</span> <span