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Dayfile.txt: Difference between revisions
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= Introduction =
Cumulus maintains a daily log file that holds the highs and lows of each day, as well as a few other nuggets of information. In all flavours of Cumulus, this file is only updated (with exclusive lock) during the end of meteorological day process. In that process it is also read, if the generation of NOAA reports has been requested.
Both Cumulus 1 and MX have ways to edit '''dayfile.txt''' while Cumulus is running. Cumulus 2 does not even allow you to view this log file. If you have a file created by Cumulus 1 (C1), please note that Cumulus 1 is not as fussy as MX about the character used to separate different parts of the date. Also MX uses the locale to decide what character (decimal comma or decimal point) separates integer and decimal parts of numbers, so for MX to read a file created by C1, the MX locale must match the Windows settings.
In Cumulus 1 only, the figures contained in the file are used for the 'This period' display accessed from the '''View''' menu and to build any graphs based on daily values.▼
Please see [[Correcting Extremes]] page for information about fixing where the highest/lowest/total recorded for day has been corrupted by rogue values.
The number of fields in the file increases in various versions as shown at the end of this article. C1 can cope with 15 to 45 fields in each line. MX (except for the early releases) assumes 48 fields in each line. If you have some lines in your file that were created by an earlier release of Cumulus, and so have less than 48 fields, you can add the missing derived fields, please see [[Calculate Missing Values]] page.
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[[File:Badge vMx.png]]In MX only, the figures contained in the file are used for the historic charts functionality; both in the admin interface, and the example included web page.
▲{{Version badge 1}}In Cumulus 1 only, the figures contained in the file are used for the 'This period' display (and the month/year displays) accessed from the '''View''' menu; and to build any graphs based on daily values.
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