s="va">set1</span>,<span class="va">set2</span><span class="op">)</span><span class="op">]</span><span class="op">)</span></span>
<span><span class="va">e</span> <span class="op">&lt;-</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="fu"><a href="https://rdrr.io/r/base/nrow.html" class="external-link">nrow</a></span><span class="op">(</span><span class="va">W</span><span class="op">)</span>,mean<span class="op">