an class='st'>"wle"</span>,
  <span class='va'>model2est</span>,
  maxsteps <span class='op'>=</span> <span class='fl'>100</span>,
  exac <span class='op'>=</span> <span class='fl'>0.001</span>,
  H <span class='op'>=</span> <span class='fl'>1</span>,
  ctrl <span class='op'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/list.html'>list</a></span><span class='op'>(</span><span class='op'>)</span>
<span class='op'>)</span>

<span class='co'># S3 method for ppeo</span>
<span class='fu'><a href='htt