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Scuba Forum / UK Scuba / February 2004stoneytemps update...
I've been busy in my lunchbreaks... ...I made pretty pictures. http://stoneytemps.calumscott.me.uk/ CAS -- Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ Ahhh... pretty! You should be a student, thats the sort of thing we'd do to waste time! And I like the left hand scale going down to -2, although I can't see many people diving in that temperature to be able to get a measurement... David > I've been busy in my lunchbreaks... > [quoted text clipped - 6 lines] > Temperature @ Stoney? Find it or share it @ > http://stoneytemps.calumscott.me.uk/ > Ahhh... pretty! You should be a student, thats the sort of thing we'd do to > waste time! Actually, one suggestiong - some sort of grid lines going across from the temperatures, it'd make it a bit easier to read, especially the temperatures to the right of the screen. One other thing too actually... do you have the server plugins to do gif or preferably png images instead of jpg, or do you have access to the server to be able to install them? It'd make it look soooo much better without the blockiness around all the lines - jpeg's designed for natural type pictures, not sharp lines. It'd make the graphs much smaller too, faster to download. Hope you don't mind me making those little suggestions... :O) David > > Ahhh... pretty! You should be a student, thats the sort of thing we'd do > to [quoted text clipped - 3 lines] > temperatures, it'd make it a bit easier to read, especially the temperatures > to the right of the screen. I'll look into that - maybe a dotted line every 5C? > One other thing too actually... do you have the server plugins to do gif or > preferably png images instead of jpg, or do you have access to the server to > be able to install them? > It'd make it look soooo much better without the > blockiness around all the lines - jpeg's designed for natural type pictures, > not sharp lines. It'd make the graphs much smaller too, faster to download. Hairy Smurf. It shall be done! > Hope you don't mind me making those little suggestions... :O) Keep 'em coming... > David CAS -- Well, we've done it... report will follow shortly at http://divesite.calumscott.me.uk/ukrs/rescue_diver_2004 Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ >"David Walker" <wbsdavenews@hotmail.com> wrote in message news:c0td71$7ld$1@wisteria.csv.warwick.ac.uk... > > I've been busy in my lunchbreaks... > > [quoted text clipped - 9 lines] > Ahhh... pretty! You should be a student, thats the sort of thing we'd do to > waste time! Been there done that wasted fully two years of my life... ...damn good fun tho! > And I like the left hand scale going down to -2, although I can't see many > people diving in that temperature to be able to get a measurement... There was a reason for it... ...although I can't remember what it was now. CAS > I've been busy in my lunchbreaks... > > ...I made pretty pictures. > > http://stoneytemps.calumscott.me.uk/ ooo how about mean / median, min, max and standard deviation? > how about > mean / median, min, max and standard deviation? Certainly, I will add that to the mix. Never did statistics though so you would need to give me a hand on the std-dev stuff... CAS -- Well, we've done it... report will follow shortly at http://divesite.calumscott.me.uk/ukrs/rescue_diver_2004 Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ > > how about > > mean / median, min, max and standard deviation? > > Certainly, I will add that to the mix. Never did statistics though so you > would need to give me a hand on the std-dev stuff... no worries <fx> dives for book </fx> > > > how about > > > mean / median, min, max and standard deviation? [quoted text clipped - 3 lines] > > no worries <fx> dives for book </fx> Right, I've had a look and I can pretty much do any stats you want, I dunno how to interpret them but seeing as you suggested it you can answer the following questions... On the full year page I reckon you want to see... - Full year max - Full year min - Full year mean - Full year median and for each month - month max - month min - month mean - month median - month stdev - month variance? Then on the month page - month max - month min - month mean - month median - month stdev - month variance? and for each day - day max - day min - day mean - day median - day stdev - day variance? Does that sound about right? CAS -- Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ > On the full year page I reckon you want to see... > > - Full year max > - Full year min > - Full year mean > - Full year median Not sure how much use the mean and median over a year are - unless you want to be able to say that a certain site is colder than another. > and for each month > [quoted text clipped - 4 lines] > - month stdev > - month variance? I would guess that the relevant ones here are max, min, mead and std dev. Variance = std^2, not a massivly useful number in this case. Really I would want to know what the most probable temperature is (mean) and possibly what the daily deviation is likely to be (std dev). I would guess though that your std dev will be dominated by instrument noise (two dive computers reading different temps) rather than the day to day change. > - day stdev This would give you a pretty good estimate of the errors between computers, except in the surface layer where you may have some idea of how much the water heats up over the day. Ben  SignatureBen Panter, Edinburgh My name (no spaces)@bigfoot which is a com. >> how about >> mean / median, min, max and standard deviation? [quoted text clipped - 3 lines] > >CAS What are you storing the data in, if its a db then you should be able to use the in built functions Pete diving 'at' melbourne 'dot' me 'dot' uk >I've been busy in my lunchbreaks... > >...I made pretty pictures. > >http://stoneytemps.calumscott.me.uk/ Very pretty Have you lost a lot of data, there seems to be far fewer samples than last time I looked For the future have you thought about extending it to other sites, say other inland sites and a sample of sea areas, e.g. South Coast, South West, etc Pete diving 'at' melbourne 'dot' me 'dot' uk > >I've been busy in my lunchbreaks... > > [quoted text clipped - 3 lines] > > Very pretty Ta. > Have you lost a lot of data, there seems to be far fewer samples than > last time I looked I have to confess that I did loose some (about 30ish) when I swapped provider (my own stupid fault...) but it is nearly back to the same sort of level now. More would be nice though (hint, hint). > For the future have you thought about extending it to other sites, say > other inland sites and a sample of sea areas, e.g. South Coast, South > West, etc I certainly have, and it shouldn't be too hard to do. If you kind chaps (and chappesses) would be good enough to discuss the likely candidates for areas (does the north side of Cornwall differ from the south? Is all of the Irish sea the roughly the same temperature? does Scapa Flow have the temperature characteristics as the Atlantic or the North Sea?) > Pete > diving 'at' melbourne 'dot' me 'dot' uk CAS -- Well, we've done it... report will follow shortly at http://divesite.calumscott.me.uk/ukrs/rescue_diver_2004 Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ > I certainly have, and it shouldn't be too hard to do. If you kind chaps > (and chappesses) would be good enough to discuss the likely candidates for > areas (does the north side of Cornwall differ from the south? Is all of the > Irish sea the roughly the same temperature? does Scapa Flow have the > temperature characteristics as the Atlantic or the North Sea?) How about St. Abbs - although you'd only get me from UKRS, I could advertise it to others in the area... And then you've got the ever popular Sound of Mull... I think Scapa was colder than the St. Abbs when I was there, but I don't store temperatures (although I could...) so don't know. Ben SignatureBen Panter, Edinburgh My name (no spaces)@bigfoot which is a com. > > I certainly have, and it shouldn't be too hard to do. If you kind chaps > > (and chappesses) would be good enough to discuss the likely candidates for [quoted text clipped - 11 lines] > > Ben I'm thinking of perhaps doing areas like from Inverness round to Ullapool for example...? Inverness to Dundee? Dundee to Berwick etc? Any thoughts on how many areas would be feasible? They have to be able to attract a reasonable amount of data. CAS -- Well, we've done it... report will follow shortly at http://divesite.calumscott.me.uk/ukrs/rescue_diver_2004 Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ > I'm thinking of perhaps doing areas like from Inverness round to Ullapool > for example...? Inverness to Dundee? Dundee to Berwick etc? > > Any thoughts on how many areas would be feasible? They have to be able to > attract a reasonable amount of data. I would go Firth of Forth - Farnes - should not be much variation and you have a large amount of divers. For the sound of Mull, you get all of Oban, maybe up to Fort William, down as far as Seil Island? Not sure where the various flows come in (North Atlantic, Irish sea, North Sea) for the North - maybe pickup a tidal flow atlas to have a look at. Alternativly, there used to be a satellite which monitored such things... http://www.a1surf.com/surfcheck-watertemp.html might be linked into it. Ben SignatureBen Panter, Edinburgh My name (no spaces)@bigfoot which is a com. > I've been busy in my lunchbreaks... > [quoted text clipped - 6 lines] > Temperature @ Stoney? Find it or share it @ > http://stoneytemps.calumscott.me.uk/ There seems to be a big variance in recorded temps. Howsabout recording the brand of device used (sunnto, aladin etc). This might let you iron out the peaks and troughs. /Z > > I've been busy in my lunchbreaks... > > [quoted text clipped - 12 lines] > > /Z That one is on my list of things to do. CAS -- Well, we've done it... report will follow shortly at http://divesite.calumscott.me.uk/ukrs/rescue_diver_2004 Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ > There seems to be a big variance in recorded temps. Howsabout recording the > brand of device used (sunnto, aladin etc). This might let you iron out the > peaks and troughs. I'd hazard a guess that the big variance is caused by the depth the measurement was taken at. In the winter months, it's going to be much the same temp at the cockpit as it it at the hydrobox (i.e. brr!). In summer, the top will warm up but the bottom still stays pretty cold. Maybe if people enter the depth then you can figure out a cool way of displaying the deep/shallow temps? - Keith > Maybe if people enter the depth then you can figure out a cool way > of displaying the deep/shallow temps? > > - Keith 3D rotatable, zoomable graphs? But then we'd need something a bit funkier than the marvelous GNUPlot which I presume CAS is using? > 3D rotatable, zoomable graphs? But then we'd need something a bit funkier > than the marvelous GNUPlot which I presume CAS is using? OpenGL plugin for netscape perhaps, complete with rendered underwater terrain :) - Keith > OpenGL plugin for netscape perhaps, complete with rendered > underwater terrain :) Classy, I guess you could also knock up a java app to do it. > > OpenGL plugin for netscape perhaps, complete with rendered > > underwater terrain :) > > Classy, I guess you could also knock up a java app to do it. I guess YOU could! I would be more than happy to host it... ;-) CAS > I guess YOU could! I would be more than happy to host it... ;-) I've never looked into the graphics libraries for java before, everything i do is usually console based. No promises, but i'll have a look, if it looks like i'll have time to write some code any-time soon, i'll solicit for a design from you :) Gav. > > Maybe if people enter the depth then you can figure out a cool way > > of displaying the deep/shallow temps? [quoted text clipped - 3 lines] > 3D rotatable, zoomable graphs? But then we'd need something a bit funkier > than the marvelous GNUPlot which I presume CAS is using? Ah now, that's where you'd be wrong. They are actually dynamically created using the GD library as supplied with PHP.... ...I just love playing with stuff like that. Anyway, I had thought about adding depths the readings were taken at, I might get round to it this year. CAS > Ah now, that's where you'd be wrong. They are actually dynamically created > using the GD library as supplied with PHP.... [quoted text clipped - 3 lines] > Anyway, I had thought about adding depths the readings were taken at, I > might get round to it this year. Ahh, depending on the access you have to the server, consider taking a look at GNUPlot, it is very flexible in what it can produce, more than GD IIRC (at least, more than GD at the time) about 18 months ago I wrote a bunch of psuedo-realtime charting tools for work using php and making calls to GNUPlot, if you want them, i'll dig them out and mail them to you. I used a lot of the smoothing functions which might come in handy for this project. Gav. >> There seems to be a big variance in recorded temps. Howsabout >> recording the [quoted text clipped - 4 lines] > I'd hazard a guess that the big variance is caused by the depth the > measurement was taken at. One bit of functionality of the original ascii version hasn't been included yet which is the ability to see the number of individual submissions of each temperature within a single day. It appears that the graphs include data from all submissions irrespective of year. The temperature variations could be because the graphs are using data from a number of years. I think the graphs are very useful even as they stand but it might be useful to be able to filter the data by year also. Simon > >> There seems to be a big variance in recorded temps. Howsabout > >> recording the [quoted text clipped - 16 lines] > > Simon Hactually... The ASCII version never had the ability to filter on year, and if you look closely at the both the year and month graphs you will see how many submissions there has been for the month or day in parentheses at the bottom of the bar... Filtering by year is pretty irrelevant at the moment given that the number of readings is quite small. So out with the logbooks... CAS >>>>There seems to be a big variance in recorded temps. Howsabout >>>>recording the [quoted text clipped - 26 lines] > Filtering by year is pretty irrelevant at the moment given that the number > of readings is quite small. So out with the logbooks... All I said was that the original ascii version had the ability to show the number of each temperature value for each day. I never said you could filter by year. So you might see that there were 4 readings of 10C and 1 reading of 15C for a particular date. That single different reading might be a rogue value or it could be correct but from a different year - we just can't tell from the graphs (ascii or otherwise) available. I was responding to someone else's point that there was a large variance in temperatures that might be due to different makes of temperature gauges. I was pointing out that the difference in temperature might actually be because the different values are from different years. Without the ability to filter on years it's not possible to tell at present. I've submitted all my dives at Stoney, about half a dozen, so I'd like to think I'm doing my bit to make the database useful. Simon > >>>>There seems to be a big variance in recorded temps. Howsabout > >>>>recording the [quoted text clipped - 34 lines] > different year - we just can't tell from the graphs (ascii or otherwise) > available. Ah! Got you now - I'll do that next time I'm bored at work! > I was responding to someone else's point that there was a large variance > in temperatures that might be due to different makes of temperature > gauges. I was pointing out that the difference in temperature might > actually be because the different values are from different years. > Without the ability to filter on years it's not possible to tell at present. I'm going to have to do some thinking around the year thing, and a whole pile of other things too, including statistical info, depth info, device info... > I've submitted all my dives at Stoney, about half a dozen, so I'd like > to think I'm doing my bit to make the database useful. You are one of our more prolific contributors - thank you very much. Where are the majority of the rest of your dives? > Simon CAS > > >>>>There seems to be a big variance in recorded temps. Howsabout > > >>>>recording the [quoted text clipped - 60 lines] > > CAS We're trying! :-) > "Simon Dakin" <simon@REMOVETHISdakin80.freeserve.co.uk> wrote in message >>I've submitted all my dives at Stoney, about half a dozen, so I'd like >>to think I'm doing my bit to make the database useful. > > You are one of our more prolific contributors - thank you very much. Where > are the majority of the rest of your dives? Sydney, Australia. Temperature readings of limited use to this newsgroup! Simon > ...I made pretty pictures. > > http://stoneytemps.calumscott.me.uk/ > > CAS Just wanted to point out, the link to your company www.inva.co.uk doesn't work (or rather, the site isn't visibl "Gavin Carey" <gicarey@hotmail.com> wrote in message news:... > > ...I made pretty pictures. > > [quoted text clipped - 4 lines] > Just wanted to point out, the link to your company www.inva.co.uk doesn't > work (or rather, the site isn't visibl e to me, just a page not found). I can ping it, just not get a response to http requests (telnetting on port 80 gets connection refused). Server issues? firewall issues? This is the message I received when I tried to access your inva site - for your info:- ************************************************8 Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, support@portland.co.uk and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. *************************************** OK? > "Gavin Carey" <gicarey@hotmail.com> wrote in message news:... > [quoted text clipped - 10 lines] > http requests (telnetting on port 80 gets connection refused). Server > issues? firewall issues? Y-e-e-e-e-s-s-s-s-s-s..... ...that'll be the f***wits at Portland (don't use them BTW - ever) who have had my renewal fee but seem not to have re-enabled the site. It will be getting moved to PurpleCloud in due course. CAS Righto, I've been buggering about again, to expand this out to temperatures for other areas... Now apart from the obvious (the other inland sites), I've come up with the following areas just of the top of my head... Inverness to Kyle of Lochalsh Kyle of Lochalsh to Carlisle Carlisle to Liverpool Liverpool to Aberyswyth Aberystwyth to Bristol Bristol to Penzance Penzance to Southampton Southampton to Margate Margate to King's Lynn King's Lynn to Middlesborough Middlesborough to Edinburgh Edinburgh to Aberdeen Aberdeen to Inverness Outer Hebrides Northern Isles Northern Ireland ...this gives me what I feel to be the "right" number of areas, not too many so I can attract plenty of data for each one but not too long stretches to keep the readings useful, I hope! Anyone want to comment or move the points around? CAS PS. don't ask where the demo site is - cos it isn't! I've still got to put in the depth field and test that first! -- Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ "The measure of a man's wealth is the fewness of his wants" - Jack Mullholand |
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