n class="co"># show some of the cold-spells:</span></span></span>
<span class="r-in"><span><span class="va">out</span><span class="op">$</span><span class="va">event</span><span class="op">[</span><span class="fl">1</span><span class="op">:</span><span class="fl">5</span>, <span class="fl">1</span><span class="op">:</span><span class="fl">10</span><span class="op">]</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>    event_no index_start index_peak index_end duration date_start  d