Setup: Difference between revisions

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added Steve Loft's rainfall units example
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The Setup process for Cumulus is briefly mentioned in the 'readme.txt' and covered in detail in the help files. Once Cumulus is installed Click Start, Programs, Cumulus and select the Help. Expand the Introduction section and begin reading at "Getting Started"
 
 
In addition to the help, there is a handy installation guide [http://sandaysoft.com/download/Cumulus%20basic%20installation%20guide.pdf here ]
== Units of measure ==
By far '''the biggest decision you will make''', and be held to, is the various units of measure. ''Select these very carefully when you are setting up as changing them later is not advisable and could require hours of work to change your old data.''
 
Remember ''if you try to change your old data later'' it probably has already been rounded and applying a single conversion factor would cause inaccuracy. For instance in rainfall you can't get back exactly to mm to 1 decimal place from inches to 2 dp. For example, 0.01 in is 0.254 mm, which rounds to 0.3 mm, but 0.02 in is 0.508 mm, which rounds to 0.5 mm rather than 0.6.
 
You need to convert the old data first into whatever units your weather station works in (e.g. Fine Offset rainfall bucket is 0.3mm and its pressure measurement is in hPa), this may be different to how you have set its console display, and then convert into whatever future units you select for Cumulus. So devising suitable conversion tactics and applying to all old data could require hours of work.
By far the biggest decision you will make, and be held to, is the various units of measure. Select these very carefully when you are setting up as changing them later is not advisable and could require hours of work to change your old data.
== Dates ==
 
Cumulus does require ayour computer SYSTEM short date format thatto use a format with a separator between day, month and year in whatever format suits your region e.g. dd/MMM/yy, dd-MM-yy, MM/dd/yy and dd-MMM-yy are acceptable, but ddMMMyy is not suitable as a short date format with Cumulus. Any change to your short date format later is likely to give problems.
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