//rdrr.io/r/base/matrix.html" class="external-link">matrix</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/stats/Normal.html" class="external-link">rnorm</a></span><span class="op">(</span><span class="va">n</span> <span class="op">*</span> <span class="va">p</span>, sd <span class="op">=</span> <span class="fl">5</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>                                            nrow <span class="op">=</span> <span class="va">p