meformat <span class="op">=</span> <span class="st">"%d-%b-%Y %H:%M:%S"</span>,</span>
<span>  windowsizes <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">60</span>, <span class="fl">900</span>, <span class="fl">3600</span><span class="op">)</span>, <span class="co"># 60 is the expected epoch length</span></span>
<span>  acc.metric <span class="op">=</span> <span class="st">"ExtAct"</span><span cla