ss="cn">NULL</span>,</span>
<span>  age.range <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  female.sex <span class="op">=</span> <span class="st">"F"</span>,</span>
<span>  male.sex <span class="op">=</span> <span class="st">"M"</span>,</span>
<span>  split.by.sex <span class="op">=</span> <span class="cn">FALSE</span>,</span>
<span>  base_size <span class="op">=</span> <span class="fl">8</span>,</span>
<span>  legend.position <span class="op">=</span> <span class="st">"bottom"</spa