"r-in"><span><span class="co"># Use package-internal list of oTree data frames</span></span></span>
<span class="r-in"><span><span class="va">oTree</span> <span class="op">&lt;-</span> <span class="fu">gmoTree</span><span class="fu">::</span><span class="va"><a href="oTree.html">oTree</a></span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Assign variable "survey.1.player.gender" and name it "gender"</span></span></span>
<span class="r-in"><span><span cla