abs_sum
abs_sum returns an aggregator that computes an absolute sum, within an aggregation group, for each input column.
Syntax
Parameters
| Parameter | Type | Description |
|---|---|---|
| cols | list[str] | The source column(s) for the calculations.
|
Caution
If an aggregation does not rename the resulting column, the aggregation column will appear in the output table, not the input column. If multiple aggregations on the same column do not rename the resulting columns, an error will result, because the aggregations are trying to create multiple columns with the same name. For example, in table.agg_by([agg.sum_(cols=[“X”]), agg.avg(cols=["X"]), both the sum and the average aggregators produce column X, which results in an error.
Returns
An aggregator that computes the absolute sum of values, within an aggregation group, for each input column.
Examples
In this example, agg.abs_sum returns the sum of absolute values of the X (renamed to AbsSumX) column grouped by Letter.
In this example, agg.abs_sum returns the sum of absolute values of the Number column (renamed to AbsSumNumber), grouped by X and Y.