 of the original datetime variable and appends it with the interval of the thickened variable, separated by an underscore.</p>
<p>Two final points on intervals before we are going to <code>pad</code>:</p>
<ul>
<li>It is about the recurrence pattern, not the moment in time where the observations toke place. (A yearly observation can take place each year at June 23rd at 9.15 pm).</li>
<li>It doesn’t require an observation at each and every time point where there could be one. It is the highest recurrence le