ith <code>detect_event3</code>, although this may also be accomplished
'by hand' as long as the criteria are met as discussed in the documentation
to <code><a href="ts2clm3.html">ts2clm3</a></code>.</p></li>
<li><p>The calculation of onset and decline rates assumes that the events
started a half-day before the start day and ended a half-day after the
end-day. This is consistent with the duration definition as implemented,
which assumes duration = end day - start day + 1. An event that is already
present at 