late non-randomized treatment</span></span>
<span id="cb2-9"><a href="#cb2-9" aria-hidden="true" tabindex="-1"></a>xbetat   <span class="ot">&lt;-</span> <span class="fl">0.5</span> <span class="sc">+</span> <span class="fl">0.25</span> <span class="sc">*</span> x[,<span class="dv">9</span>] <span class="sc">-</span> <span class="fl">0.25</span> <span class="sc">*</span> x[,<span class="dv">1</span>]</span>
<span id="cb2-10"><a href="#cb2-10" aria-hidden="true" tabindex="-1"></a>trt.prob <span class="ot">&l