It looks like you retrieved no data. It calculated decent looking arrival times, so no problem with the change you made?
Try just a query for data spanning the first arrival. From a shell prompt: sqlite3 weewx.sdb "select datetime, barometer from archive where datetime > 1642258360-100000 and datetime < 1642258360+100000 order by dateTime;" On Thursday, January 20, 2022 at 1:29:36 p.m. UTC-4 [email protected] wrote: > I tried the code posted on github as well as the one by Cameron D. In both > cases I got the following error: > ``` > root@n4mrv:/home/bg/weewx_tonga_browse-main# python3 ./tonga.py [file > from Cameron D] > > distance to eruption 12056.6 km arrival at 1642258360 (2022-01-15 09:52:39) > opposite pulse arrival at 1642308921 (2022-01-15 23:55:21) > second time around pulse arrival at 1642385471 (2022-01-16 21:11:10) > Traceback (most recent call last): > File "./tonga.py", line 178, in <module> > plot_burst( cursor, arrival_time, hour_span, "primary" ) > File "./tonga.py", line 54, in plot_burst > coeff = np.polyfit(xdata, ydata, background_order ) > File "<__array_function__ internals>", line 180, in polyfit > File "/usr/local/lib/python3.8/dist-packages/numpy/lib/polynomial.py", > line 638, in polyfit > raise TypeError("expected non-empty vector for x") > TypeError: expected non-empty vector for x > ``` > I added my lat/lon information but may have missed something else I need > to change. Python modules were installed as directed. Copy of weewx.sdb is > in the same directory as the program. > Thanks. > Bob > On Wednesday, January 19, 2022 at 10:32:49 AM UTC-5 [email protected] > wrote: > >> On Wednesday, January 19, 2022 at 12:42:04 a.m. UTC-4 Cameron D wrote: >> >>> >>> - as you get closer to the equator, tidal changes dominate the >>> baseline in that timescale - I tried higher order polynomials, but they >>> are >>> next to useless. >>> >>> I also had little luck with higher order polynomials to remove the >> general trend. >> >> I've put the script here: https://github.com/morrowwm/weewx_tonga_browse >> > -- 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/e3a55dde-1254-495e-9af9-4c71f9ae1e28n%40googlegroups.com.
