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FAQ: Difference between revisions
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→Where does Cumulus get its this month and this year rainfall totals from?: Corrections, to typos and incorrect template reference
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** Cumulus MX builds below 3008 do not include rainfall for year to date, other rainfall calculation items were fixed in 3022 to 3042, you should use latest build for best functionality.
* Each time Cumulus (both 1 and MX) reads records from the weather station it applies any change to the 'total rain count' against today's total in its memory. This "Count" approach has been chosen because different weather stations output different values, and an independent count is a way of working that can be applied for any weather station.
**As you will see if you look in [[diags]], Cumulus stores the 'total rain count' figure at rollover, so by maintaining the current figure it can subtract off the start of day figure to deduce the rainfall today and this is shown on the front screen in Cumulus 1, labelled ''Today''. In Cumulus 1 the '''Edit''' menu gives access to the ''Today's rain'' screen and that provides the ability to edit the
**Today's rain is added to the figures (as described above) derived from dayfile.txt for what the front screen in Cumulus 1, labels '''This month''', and ''This year'' (this last figure is the seasonal total, you can choose for it to start on 1 January or any other month). Thus these figures are updated each time Cumulus receives a rain reading from the station (they all include today-so-far), and these figures will not be displayed if Cumulus is unable to read rain information from your station.
** The today's total so far at each reading time is also added to the 'recent tag' array allowing total values for the day-so-far at one minute intervals for up to a week ago to be added as web tags to a web template.
* For the web tags, Cumulus (both 1 and MX) takes its stored sums and adds today's latest total each time, to give the current totals for this month and this rain season (year so far) when processing '
**Important, for the <#ryear> web tag, and for the 'This year' display on the ''main'' Cumulus screen, the processing reads the ''dayfile.txt'' for the rainfall season starting with the month set on the station settings screen and stored as the value for attribute ''RainSeasonStart'' in [[Cumulus.ini#Section:_Station]] (its default is January).
**If you have set a 'year to date' value and Cumulus is being re-started when the year specified beside that figure matches the current calendar year, your year-to-date amount is also added into this year's total. This should normally only be relevant in your first rain season of operating Cumulus, but could be used if in any season you needed to add an extra amount because for some reason you had a gap in your recording period. ''Do be aware that if you select a rain season starting in a month other than January, the year to date figure will stop being added on 1 January because the year specified next to the figure to add on will then be the previous calendar year!''
*Note that you need to stop and then restart Cumulus to update these initial values that are stored in memory and get any corrections you made to rogue values in the daily summary log (or year-to-date) reflected on the main Cumulus screen and in web tags.
The built-in dayfile.txt editor is used if it is necessary to amend the daily totals (to correct any monthly, rain season, or calendar year, totals); the built-in all-time (or monthly records) editor(s) in Cumulus 1 and MX is used if it is necessary to regenerate the extreme records from dayfile.txt; see [[#My_station_invented_some_rain_that_didn.27t_really_occur.2C_and_I_want_to_set_it_to_zero_.28or_some_other_figure.29 |FAQ about correcting incorrect rainfall displays]].
== How do I reset all my data to start again from scratch? ==
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