class="ot">&lt;-</span> <span class="fl">1e4</span></span>
<span id="cb6-5"><a href="#cb6-5" aria-hidden="true" tabindex="-1"></a>X <span class="ot">&lt;-</span> <span class="fu">matrix</span>(<span class="fu">rnorm</span>(p <span class="sc">*</span> n), <span class="at">ncol =</span> p)</span>
<span id="cb6-6"><a href="#cb6-6" aria-hidden="true" tabindex="-1"></a><span class="fu">colnames</span>(X) <span class="ot">&lt;-</span> <span class="fu">paste0</span>(<span class="st">&quot;X&quot;</span>, <span cla