ass="op">~</span><span class="va">x1</span>, sigma.fo<span class="op">=</span><span class="op">~</span><span class="va">x2</span>, nu.fo<span class="op">=</span><span class="op">~</span><span class="fl">1</span>, family<span class="op">=</span><span class="va">GGD</span>,</span></span>
<span class="r-in"><span>              control<span class="op">=</span><span class="fu"><a href="https://rdrr.io/pkg/gamlss/man/gamlss.control.html" class="external-link">gamlss.control</a></span><span class="op">(</span>n.cy