code></pre></div>
<pre><code><span><span class="co">##   names          x  y</span></span>
<span><span class="co">## 1     a  1.0000000  1</span></span>
<span><span class="co">## 2     b -0.4161468  4</span></span>
<span><span class="co">## 3     c  5.0000000  9</span></span>
<span><span class="co">## 4     d  4.0000000 16</span></span></code></pre>
<p>Expressions not in parenthesis (such as “<code>3 + 2</code>”) will
confuse the language transform <code><a href="../reference/build_frame.html">build_fra