pan class="op">]</span><span class="op">]</span><span class="op">)</span></span>
<span><span class="co">#&gt; [1] -0.7568025</span></span></code></pre></div>
<div class="sourceCode" id="cb4"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="co"># with the attribute, the array is always de-referenced</span></span>
<span><span class="co"># before the pipe execution allowing the function</span></span>
<span><span class="co"># to be evaluated using the piped-in value.</span></span