simpleNumericalAggregation  
  Built-in aggregation functions for numerical values.
- SUM: The sum of a dimension or measure.
- AVERAGE: The average of a dimension or measure.
- MIN: The minimum value of a dimension or measure.
- MAX: The maximum value of a dimension or measure.
- COUNT: The count of a dimension or measure.
- DISTINCT_COUNT: The count of distinct values in a dimension or measure.
- VAR: The variance of a dimension or measure.
- VARP: The partitioned variance of a dimension or measure.
- STDEV: The standard deviation of a dimension or measure.
- STDEVP: The partitioned standard deviation of a dimension or measure.
- MEDIAN: The median value of a dimension or measure.