Is there a simple way to detect if a value is increasing over a period using PI Analytics?
The obvious thing to do is something like
if TagVal('tag', '*-5m')<'tag' then increasing else not-increasing
However that is not going to detect any ups or downs in the 5 minute period.
One could also do:
if TagMin('tag', '*-5m', '*') > TagVal('tag', '*-5m', '*') then it-increased else it-didn't-increase
but that doesn't detect a trend of increasing values either.
If the tag updates regularly then you could compare PrevEvents().
Any suggestions, squareheads?