l_2 col_3</span></span>
<span><span class="co">## 1     a     b     c</span></span>
<span><span class="co">## 2     d     e   f g</span></span></code></pre>
<p><code><a href="../reference/build_frame.html">build_frame()</a></code> is intended to capture typed-in examples,
and is only compatible with very limited in-place calculation and
substitution, and that <em>must</em> be in parenthesis:</p>
<div class="sourceCode" id="cb18"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class