"op">)</span></span>
<span></span>
<span><span class="co">## Aggregation of 3 ts with 5-minute time frequency (i.e., a zoo matrix) </span></span>
<span><span class="co">## into a 30-minute zoo object.</span></span>
<span><span class="va">X</span>  <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/cbind.html" class="external-link">cbind</a></span><span class="op">(</span><span class="va">x</span>, <span class="va">x</span>, <span class="va">x</span><span class="op">)</span></span