n><span class="op">(</span><span class="va">series</span><span class="op">$</span><span class="va">TS_3</span><span class="op">)</span><span class="op">)</span>

<span class="co"># Because these are generated signals, look for a drop in FNN below 1%.</span>
<span class="va">p3</span> <span class="op">&lt;-</span> <span class="fu"><a href="../reference/est_parameters.html">est_parameters</a></span><span class="op">(</span>y <span class="op">=</span> <span class="va">series</span><span class="op">$</span><spa