Built-in Functions → average
average() is an aggregation function that returns the average of the values in a column.
Signature
average(double expr, [groupBy(...)])
- expr : expression evaluating to
double
groupBy
: optional grouping function that specifies which group of data to operate over
Note
If you use the groupBy
function, you must include all the leading grouping dimensions in the Insight from the top-down to the level-based measure you want to evaluate. For more information, refer to Aggregation with a Level Based Measure.
Returns
double
representing the average of the values in the column. If groupBy
is used, average
returns the average for each group.
Examples
- Compute the average of the values in the data column AMOUNT_SOLD.
average(Sales_Acme.Sales.AMOUNT_SOLD)
- Compute the average of AMOUNT_SOLD by QUARTER_NUMBER.
average(Sales_Acme.Sales.AMOUNT_SOLD,groupBy(Sales_Acme.Sales.QUARTER_NUMBER))