>)</span> <span class="op">~</span> <span class="va">arm</span>, data <span class="op">=</span> <span class="va">KM.PFS.DES</span><span class="op">)</span></span>
<span></span>
<span><span class="va">km.comb</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span>Observed <span class="op">=</span> <span class="va">km.est.PFS</span>,</span>
<span>                Predicted <span class="op">=</span> <span cla