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* For non-periodical values we recommend you to use the W-Average (weighted average) function and the Average function for periodical values.
** The function allows recalculation of the historical value if historical values archived primarily have been changed. In addition, the time of the end of the interval is always stored (this 'statistics' basically only resamples the source archive with the selected period).
The difference among the functions INCREMENT, DELTA, and SUM OF INCREMENTS is shown in the following figures.
In the first case, all three functions are equal to 5 (10-5)
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