 <span class="fu">scale_x_discrete</span><span class="op">(</span>limits <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"Class"</span>, <span class="st">"Sex"</span>, <span class="st">"Age"</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="co"># use of lode controls</span></span></span>
<span class="r-in"><span><span class="va">gg</span> <