n>,<span class="op">]</span></span></span>
<span class="r-in"><span><span class="va">xtest</span> <span class="op">&lt;-</span> <span class="va">iris</span><span class="op">[</span><span class="fl">101</span><span class="op">:</span><span class="fl">150</span>,<span class="op">]</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="va">bst</span> <span class="op">&lt;-</span> <span class="va">KNNTrainer</span><span class="op">$</span><span class="fu">new</span><s