span class="va">N</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">dSample</span> <span class="op">&lt;-</span> <span class="va">d</span><span class="op">[</span><span class="fl">1</span><span class="op">:</span><span class="fl">300</span>, , drop <span class="op">=</span> <span class="cn">FALSE</span><span class="op">]</span></span></span>
<span class="r-in"><span><span class="va">tplan</span> <span class="op">&lt;-</span> <span class="fu"><a 