co"># note: iter = 250 for demonstrative purposes</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># data</span></span></span>
<span class="r-in"><span><span class="va">Y</span> <span class="op">&lt;-</span> <span class="va">bfi</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="va">Y</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/subset.html" class="external-link">sub