Re: Local maximum and minimum
Simon Hobson <[email protected]>
| Newsgroups | gmane.comp.db.rrdtool.user |
|---|---|
| Message-ID | <[email protected]> |
Philip Gwyn <[email protected]> wrote: > Hello, > > I have a 1-wire setup in my attic. I log temperature and humidity and generate daily/weekly/monthly graphs. I use a modified temps.pl from Thierry Hugue. > > What I would very much like is to graph the local maximum and minimum temperature. This would be roughly the maximum and minimum over a 24 hour period. The MAXIMUM and MINIMUM operators don't do what I want - they find the max for the entire period. If you have a 24 hours consolidation for MAX and another for MIN, then that will contain values for max and min per day*. You can then graph that and get a graph of min/max by day. You may have to specify the consolidation when graphing if you have other min & max consolidations. * Where "day" is a 24 hour period starting at midnight UTC. It will not be midnight to midnight if your local timezone isn't UTC.