tps://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="fl">0.25</span>, <span class="fl">3</span><span class="op">)</span>, lambda <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span><span class="fl">0.15</span>, <span class="fl">4</span><span class="op">)</span>, sigma <span class="op">=</span> <span class="fl">1</span>, trend <span class="op">=</span> <span class=