quote <span class="op">=</span> <span class="cn">TRUE</span>, noSpaces <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>                            "Stratified by trt"</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  ""                         "1"                        </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   "n"                       "158"                      </span>
<span cla