"reweight" was in the utils before 5.0. Of course, if you (as I do) very much value the precision of min/max values, you don't ever drop daily summaries unless it is really necessary, and even then only for the narrowest timespan necessary.
Min/Max values are from the LOOP, so any LOOP value leading to a min/max value has the timestamp of the LOOP packet in which it arrived, so this isn't anything related to Davis hardware, it depends on when the data arrives in the LOOP (if so). Be even more paranoid than you seem to be concerning the database, I do hourly, daily, weekly and monthly backups and I run several weewx instances redundantly on independent hardware :D Nate Bargmann schrieb am Montag, 12. Februar 2024 um 10:08:34 UTC+1: > * On 2024 12 Feb 00:13 -0600, 'michael.k...@gmx.at' via weewx-user wrote: > > Nate, this is > > what > https://weewx.com/docs/5.0/utilities/weectl-database/#recalculate-daily-summary-weights > > > is for. Imagine you manipulate the database an know, the average of a > > certain type will change after that, the highs an lows aren't affected, > > e.g. you backfill a gap in the database for outTemp from another source, > > because your primary sensors battery was empty. Last good value was at > 8:00 > > a.m., after the morning low, you've replaced the battery at 1 p.m., > before > > the afternoon high. After you've replaced the values in the database, > you > > run "reweight" for that day, you highs and lows will be untouched. > > Note that I am still on 4.10 and that I found what I stated occurred a > couple of months ago before 5.0 was released. In this case the 4.10 > wee_database docs should be consulted. > > Try this on a copy of your DB: > > Drop the daily summaries. > Rebuild the daily summaries. > Compare. > > Again, perhaps this varies based on the backend, but with the Davis > backend I saw that min/wax values logged between archive intervals were > lost. Fortunately, wee_database has the capability to restore a single > archive_day record if needed. > > I am very cautious working with the DB and do so on a copy if need be (I > recently filled a bunch of locally missing data from before a Raspberry > Pi crash in 2015 from Weather Underground. It worked very well). I > also dump and back up the DB offsite every six hours. > > - Nate > > -- > "The optimist proclaims that we live in the best of all > possible worlds. The pessimist fears this is true." > Web: https://www.n0nb.us > Projects: https://github.com/N0NB > GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819 > > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/73529a4c-d507-4664-ab45-bfe4dc9bd27an%40googlegroups.com.
