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FAQ: Difference between revisions
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→Cumulus read some invalid figures from my station: New Q
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== I’ve ‘zoomed’ a graph, how do I get it back to full size? ==
Drag from lower right to upper left.
== Cumulus read some invalid figures from my station ==
Over successive versions of Cumulus more and more code has been incorporated to deal with the way some stations are prone to reporting rogue readings. In general, if Cumulus identifies an odd value it will reuse the last good value instead, assuming that the problem will either right itself or be spotted and dealt with quickly.
*Ensure you are using the latest Cumulus build, if you are using an old version you will not have any enhancements made since them that might improve the way Cumulus reads from the station.
*From the '''Configuration''' menu select ''Calibration'' and in the '''Spike removal''' frame you can specify "the maximum '''differences''' between successive values" that Cumulus is to tolerate. See the '''Help''' for that screen, and note that spike removal applies while Cumulus is running, not to catch-up readings from the station's logger.
*If you have just restarted Cumulus, and encounter multiple rogue readings in the catch-up from the station logger, one possibility is to stop Cumulus and find the backup files that it took when you started it up (or just after the previous roll-over time), copy those files into the data folder, overwriting the ones that are there, then when you start it up again it could sort itself out.
The [[Diags]] log often contains useful information for sorting out what has been read, which values have been ignored, and which highs or lows may have been updated incorrectly. Note that automatic backups are made just after roll-over time because restarting Cumulus when there are no logger records to read before roll-over has been known to cause problems.
== My station invented some rain that didn't really occur, and I want to set it to zero (or some other figure) ==
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