Aggregate data
Aggregations are operations that can be performed on table data that has already been grouped by a time interval. Aggregate functions perform a calculation on a set of values and return a single value. Operations include counting records in a group, identifying the minimum or maximum value in a group, or calculating the sum of field values in a group. When you create an aggregation, a new column appears in the table displaying the results of the operation.
Having already grouped your table data by a selected time interval, follow these steps to aggregate the grouped values: