ernal-link">expansion</a></span><span class="op">(</span>add<span class="op">=</span><span class="fl">0.2</span><span class="op">)</span><span class="op">)</span></span></code></pre></div>
<div class="sourceCode" id="cb10"><pre class="sourceCode R"><code class="sourceCode r"><span id="cb10-1"><a href="#cb10-1" tabindex="-1"></a><span class="do">## Scale for x is already present.</span></span>
<span id="cb10-2"><a href="#cb10-2" tabindex="-1"></a><span class="do">## Adding another scale for x, which will rep