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Hi again Done it... http://weldsmith.co.uk/nautical/230429_n22_hi_lo/n22_hi_lo_provnl.html "N22 tides highest-high lowest-low PROVISIONAL" Sorry it didn't turn into a joint project. "awk" - it's so useful and got me there. Regards, Rich Smith > On 24 Apr 2023, at 13:56, Tom via list <list@xxxxxxxxxxxxx> wrote: > > Perhaps moving up to AI might help. Theres a free app called Weka which comes with > free online courses and also an app called Moa which can eat time line data and > process it as it arrives. I did a course a few years ago and remember it had > mechanisms for handling date with time based cycles and all sorts of goodies for > finding and marking outliers and removing them from datasets.. > I think you'll find high tides will break records regularly from now on - low > tides breaking records probably means a tsunami is on the way! > Cheers cheerily > Tom te tom te tom > On 24/04/2023 07:41, rds_met wrote: >> Hello all >> >> I had a bit of complete relaxation time yesterday and thoughts >> flowed... >> >> I saw you could do the lot with "awk" - the unix toolkit awk command / >> utility. >> >> "Rough" first output. >> http://weldsmith.co.uk/temp/tide_n22_hi_lo_all.png >> >> Broadly "it's there"; however there are problems where the tide gauge >> was mulfunctioning (a tide making 11.something m above Lowest >> Astronomical Tide would if it really happened make the news!!!). >> Etc. >> >> The horizontal axis is the tide-gauge's sequential 15-minute >> data-record increments in a year >> (* 365 24 4) ;; 35040 >> >> I would help a more sophisticated "data-crawling" program if there >> were inclination to make one. >> >> Regards, >> Rich Smith >> >> -- >> The Mailing List for the Devon & Cornwall LUG >> FAQ: https://www.dcglug.org.uk/faq/ > > > -- > The Mailing List for the Devon & Cornwall LUG > FAQ: https://www.dcglug.org.uk/faq/ -- The Mailing List for the Devon & Cornwall LUG FAQ: https://www.dcglug.org.uk/faq/