05</span>, size <span class="op">=</span> <span class="fl">0.5</span>, alpha <span class="op">=</span> <span class="fl">0.6</span><span class="op">)</span> <span class="op">|&gt;</span></span>
<span>  <span class="fu"><a href="reference/gf_density_2d.html">gf_density2d</a></span><span class="op">(</span>alpha <span class="op">=</span> <span class="fl">0.3</span><span class="op">)</span> <span class="op">|&gt;</span></span>
<span>  <span class="fu"><a href="reference/gf_aux.html">gf_labs</a></span><span clas