This indicates the type of operation that will be used for the calculation of the statistical heading:
- Mini: The heading is equal to the minimum value among the statistical values for the calculation period.
- Maxi: The heading is equal to the maximum value among the statistical values for the calculation period.
- Sum: The heading is equal to the sum of the statistical values for the calculation period.
- Average: The heading is equal to the average of the statistical values for the calculation period.