I want to make sure how sfxDQJob
and sfxDQFindOutliers
works. I am trying to use this function for a signal that has several outliers with values such as 1e15 (while normal values are less than 1e4). I do not get results from sfxDQFindOutliers
that I would expect.
I see that sfxDQJob
computes statistics that are added to each point as his...
tags.
1, These statistics are computed on interval that is given by parametr dateRange
. It means that for example hisDQAverage
is average over last year?
2, Outliers are detected if (value < hisDQAverage - sDs*standard_deviation) or (value > hisDQAverage + sDs*standard_deviation)
?
3, How are NaN
or NA
values handled? Do I have to remove these values before sfxDQFindOutliers
execution?