span><span class="va">edata</span> <span class="op">&lt;-</span> <span class="va">abex</span><span class="op">$</span><span class="va">env_data</span></span></span>
<span class="r-in"><span><span class="va">etrain</span> <span class="op">&lt;-</span> <span class="va">edata</span><span class="op">[</span><span class="va">edata</span><span class="op">$</span><span class="va">trian_test</span><span class="op">==</span><span class="st">"Train"</span>,<span class="fu"><a href="https://rdrr.io/r/base/c.html" clas