ses at printing-time. The good news is that it is merely a printing problem.</p></li>
<li><p>The way it prints inlined vectors is ambiguous. R expressions can contain actual data structures not just symbolic code. It is especially easy to inline vectors and other objects with quasiquotation:</p>
<pre class="r"><code>expr(mean(!!c(1, 2, 3)))</code></pre>
<pre class="knitr r">#&gt; mean(c(1, 2, 3))
</pre>
<p>Note how the output above is indistinguishable from the following output:</p>
<pre class="r"><code>exp