 <span class="op">]</span> <span class="op">&lt;-</span> <span class="fl">0.65</span></span>
<span><span class="co"># generate data</span></span>
<span><span class="va">dat</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/matrix.html" class="external-link">matrix</a></span><span class="op">(</span> <span class="cn">NA</span>, <span class="va">N</span>, <span class="fl">3</span><span class="op">*</span><span class="va">I</span> <span class="op">)</span></span>
<span><span