 class="op">=</span> <span class="fl">1</span><span class="op">)</span></span>
<span></span>
<span><span class="va">sim.km.PFS</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/pkg/survival/man/survfit.html" class="external-link">survfit</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/pkg/survival/man/Surv.html" class="external-link">Surv</a></span><span class="op">(</span><span class="va">evttime</span>, <span class="va">Event</span><span class="op"