pan><span class="co"># Make a dummy instance with a centered (zero-mean) exponential distribution:</span></span></span>
<span class="r-in"><span><span class="va">instance</span> <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span>FUN <span class="op">=</span> <span class="st">"dummyinstance"</span>, distr <span class="op">=</span> <span class="st">"rexp"</span>, rate <span class="op">=</span> <span class="fl">5</