# Window

> Supported in: Batch, Faster

Performs the specified aggregations on the input dataset grouped by a set of columns.

**Transform categories**: Aggregate, Popular

## Declared arguments

* **Dataset:** Dataset to perform aggregate on.<br>*Table*
* **Expressions:** List of expressions to evaluate over window.<br>*List\<Expression\<AnyType>>*
* **Window:** Window to operate over.<br>*Window*