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.
Nate Bargmann schrieb am Sonntag, 11. Februar 2024 um 21:39:35 UTC+1: > Be careful throwing away archive_day-* data! > > On my setup with the Davis driver min and max values often occur in > between archive intervals. I found that those are lost if the daily > summaries have to be rebuilt from the archive table. My archive > interval is 5 minutes. > > I did some testing a couple of months back cleaning up some spurious > solar sensor data that crept in from a failing ISS transmitter. In the > process I rebuilt the daily summaries on a copy of the database and saw > every daily summary min/max value was on the five minute mark. I knew a > recent day had recorded a low, just briefly, at something like 24.4 and > in the original DB was recorded at that value at the precise time but > both values were lost in the regenerated daily summaries. I've become > quite careful to not disturb the daily summaries after that. > > I think this should be prominently noted in the WeeWX documentation. > > In my DB I noticed that the dailies started recording this information > when I switched to version 4.x in the first days of 2021. I don't > recall if there was something done to the DB in that upgrade or not. > > - 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/c38a6b00-64db-4bd4-ac63-37564a8135ebn%40googlegroups.com.
