If a new type appears in the data stream, a new "scalar" accumulator will automatically be created for it. When it comes time to extract a datum for a new record, the average will be used by default. If you don't like that, then you can specify a different "extractor."
You can suggest some changes here (or, better, in weewx-development), or submit a PR on GitHub. -tk On Thu, Nov 12, 2020 at 11:21 AM Earl Baugh <[email protected]> wrote: > Tom & Vince, > > All very helpful info! It aligns with what I was thinking so far. This > wiki page on accumulators was very informative. > > Still got a couple questions -- I see Lightning Strikes as an > accumulator. But nothing for Noise_Count and Disturber_Count. > I'd expect those were accumulators but I don't see anything that would > feed into them. > > I could, I guess, add new records for Noise and Disturber and then > accumulate them into the _Count fields... it seems like > there is a gap here in what I see. > > Thoughts? > > And how might I give inputs on some data that I'd like to suggest be added > to the "main-line" rather than things just in > my copy. Other other feature suggestions? > > Earl > > On Sat, Nov 7, 2020 at 6:04 PM Tom Keffer <[email protected]> wrote: > >> Generally, the way WeeWX handles extensive types (such as rain, ET, >> energy, etc.), is that it's the amount of "stuff" seen during the >> observation period. So, in this case, for LOOP packets, it's the number of >> strikes detected since the last LOOP packet. For archive records, it's the >> number of strikes detected during the archive period. >> >> The latter will be calculated automatically by the accumulators. See the >> wiki article *Accumulators >> <https://github.com/weewx/weewx/wiki/Accumulators>* for how accumulators >> work. In particular, note that the default type of extractor for >> lightning_strike_count is 'sum'. That means, the value in the record >> will be filled in with the sum of all values seen in the LOOP packets over >> the archive period, in other words, the total number of lightning strikes. >> >> Hope that helps. >> >> -tk >> >> On Sat, Nov 7, 2020 at 2:00 PM Earl Baugh <[email protected]> wrote: >> >>> >>> On Nov 7, 2020, at 4:47 PM, vince <[email protected]> wrote: >>> >>> >>> On Friday, November 6, 2020 at 10:53:12 AM UTC-8, Earl Baugh wrote: >>>> >>>> I see in the weewx db schema that there are: >>>> >>>> 'lightning_distance', 'REAL' >>>> 'lightning_disturber_count', 'REAL' >>>> 'lightning_energy', 'REAL' >>>> 'lightning_noise_count', 'REAL' >>>> 'lightning_strike_count', 'REAL' >>>> >>>> [...] >>>> >>> >>> >>>> But how do I post a noise or disturber record? That isn't clear. >>>> Given I just see a count, I'm not sure what kind of data would be needed to >>>> cause that to increment. >>>> >>>> >>> Some gear has noise+disturber info available. Some do not. >>> >>> All those elements are available if you choose to use them. >>> But they're not mandatory. >>> >>> You can use them, or ignore them, or use the available fiels in the db >>> for other uses (count every time your nest doorbell triggers and call it a >>> disturber event :-) >>> >>> >>> >>>> I'm assuming weewx updates the strike count based on the new lightning >>>> record. But that's a guess... is that guess accurate? >>>> >>>> >>> Not in the least. Your extension/service/driver would have to monitor >>> some sensor and choose to save it in those elements in the db. >>> >>> It's all up to the software developer who writes the extension or >>> service or driver or however you chose to read the sensor's available >>> measurements and get them into the db. After that weewx can handle the >>> graphing and db querying etc. kind of heavy lifting for you, but you kinda >>> have to do the low-level stuff to get the sensor info into the db. >>> >>> >>> Well in this case, I’m the SW developer :-) ( it’s my day job as well >>> ). I’m just trying to understand the thoughts behind the “count” fields. >>> I have access to disturber and noise events. >>> >>> Would it make sense to post an event that has a value of 1 for count >>> every time? By the name, I was thinking that this was a running total, or >>> number that occurred since last report. >>> >>> I’ve added a number of extra fields to my DB already (different >>> pollution gases, uSieverts — have a Geiger counter feeding data :-) ) So >>> I’m extending already, but trying to understand existing fields expected >>> purpose. Most skins, etc. have very useful behavior already, so trying to >>> leverage as much as possible. Aside from battery slots ( won’t ever use >>> those, have everything on live power) I’m slowly trying to see what I can >>> fill in. That’s been part of the fun. >>> >>> Earl >>> >>> >>> -- >>> 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 [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/A39AB5D9-146C-4E44-8F99-97F72976B5CE%40baugh.org >>> <https://groups.google.com/d/msgid/weewx-user/A39AB5D9-146C-4E44-8F99-97F72976B5CE%40baugh.org?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "weewx-user" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/weewx-user/O6A9fEFcnOc/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-user/CAPq0zEDLCa5SRJQp5L4r7QuCeUFW-CXYjvZoEakcb8TWU%2B0Eow%40mail.gmail.com >> <https://groups.google.com/d/msgid/weewx-user/CAPq0zEDLCa5SRJQp5L4r7QuCeUFW-CXYjvZoEakcb8TWU%2B0Eow%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > 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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/CAAucK2Uzj9PfPfEpqZk6U-1m8h1hVEUoWGAk4nBYxaY0qa1BYg%40mail.gmail.com > <https://groups.google.com/d/msgid/weewx-user/CAAucK2Uzj9PfPfEpqZk6U-1m8h1hVEUoWGAk4nBYxaY0qa1BYg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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