Aggregate Compute Fields

This computation algorithm, or rather data transformation, takes existing fields and creates a new field by evaluation an expression on an existing source. Sample fields will be flattened and treated as lists at the site level.

After clicking OK you will be prompted to select field sources, multiple sources may be selected including previously computed fields. Once the source is selected, you can click OK again.

This will open up the Expression Editor. Any number of expressions can be specified using all fields listed. A preview of the evaluated expression will appear in the table at the bottom of the expression editor dialog. For more information about the Expression Editor, please see Expression Editor.

Requirements

None

Output

A column will be created containing the computed output based on the specified expression.

Note

When computing expressions on sample level fields the output will be a variant level field. See Aggregate Compute Fields Data Transformation Example for a specific example.