Historical average check

The Measurement system detects when the data falls outside the Historical average. You configure the number of periods to use to average the Historical data, and the period frequency.

The period frequency is used when the data changes in regular cycles.

For example, if the temperature is expected to be the same at 17:00 P.M. every day, then the period frequency is 24 when validating hourly data. If the temperature is expected to be the same every 4 hours, then the period frequency is specified as 4. The number of periods to be used should be less than 48.

The configuration of the Historical Average Check is similar to configuring the Daily vs. Aggregations Check. For more information, refer to Configure the daily vs. aggregations check.