ss="va">y3</span>, <span class="va">y4</span>, <span class="va">y5</span>, <span class="va">y6</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">ens</span> <span class="op">&lt;-</span> <span class="fu">greedy_ensemble</span><span class="op">(</span><span class="va">Y</span>, kk<span class="op">=</span><span class="fl">5</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">ens</span><span class="op">$</span><span class="va">scores</spa