</a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="co"># data frames equal dimensions</span></span></span>
<span class="r-in"><span><span class="va">df1</span> <span class="op">&lt;-</span> <span class="fu">plyr</span><span class="fu">::</span><span class="fu"><a href="https://rdrr.io/pkg/plyr/man/rdply.html" class="external-link">rdply</a></span><span class="op">(</span><span class="fl">3</span>, <span class="fu"><a href="https://rdrr.io/r/base/rep.h