Gary, Thank you, you are a star. That is exactly what I was looking for.
I'm going to go away and play. I'm so excited! Robin On Monday, 13 May 2019 10:40:37 UTC+3, gjr80 wrote: > > I've put together a search list extension that should do what you want. > You will find the code here > <https://raw.githubusercontent.com/gjr80/weewx_utilities/master/search%20list%20extensions/this/bin/user/this.py>. > > The SLE is based on the existing WeeWX tag machinery that enables > iteration <http://weewx.com/docs/customizing.htm#Iteration> over periods. > So with the SLE installed you can do something like: > > #for $day in this_span.this > $day.outTemp.max at $day.outTemp.maxtime > #end for > > to display the maximum daily temperature and the time it occurred on this > day in all years in the archive. The output would be something like: > > 24.5°C at 11 May 2017 12:51:00 > 26.7°C at 11 May 2018 13:31:00 > 23.4°C at 11 May 2019 13:15:00 > > There are various parameters that can be set against $this_span to limit > the period covered (the default is all records but you can limit it to the > last x years, months etc as with the existing $span tag). There are > various parameters that can be applied to .this to set the day to be > used, for example, .this($period='week') and .this($period='month') will > provide stats for this week and this month respectively over all years. > There are many variations and permutations, I have tried to capture a > variety of use cases in the up front comment in this.py > <https://raw.githubusercontent.com/gjr80/weewx_utilities/master/search%20list%20extensions/this/bin/user/this.py> > . > > To install/use: > > 1. Download the file this.py to the WeeWX machine and save to the > $BIN_ROOT/user directory: > > for a setup.py install: > > $ wget -P /home/weewx/bin/user https:// > raw.githubusercontent.com/gjr80/weewx_utilities/master/search%20list%20extensions/this/bin/user/this.py > > otherwise: > > $ wget -P /usr/share/weewx/user https:// > raw.githubusercontent.com/gjr80/weewx_utilities/master/search%20list%20extensions/this/bin/user/this.py > > 2. Add the following line to the skin config file [CheetahGenerator] > stanza for the skin in which the SLE is to be used: > > search_list_extensions = user.this.ThisSLE > > if the search_list_extensions config option already exists add > user.this.ThisSLE to the end of the option using a comma as a separator, > eg: > > search_list_extensions = user,another.SLE, user.this.ThisSLE > > 3. Add the required $this_span.this code to the template concerned. > > 4. After the next report cycle is complete confirm there are no errors in > the log and the report has been generated as expected. > > Gary > > On Saturday, 11 May 2019 23:30:47 UTC+10, Robin wrote: >> >> I apologise if this has been asked before or if there is a simple and >> obvious way to do this, but I can't see it. >> >> I want to display the temperature (min,max) for today's date for each >> year since we started keeping records. >> >> Can somebody point me in the right direction? >> >> Thanks people. >> > -- 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/6f3e54af-0d4f-44b8-8127-b245659ca652%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
