3.10.4. Compute Fields¶
This computation algorithm, or rather data transformation, takes existing annotation fields and creates a new field by evaluation an expression on an existing source.
After clicking OK you will be prompted to select an annotation field source, this can include 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.
A column will be created containing the computed output based on the specified expression.
When computing expressions on Sample level fields the output will also be a sample level field. See Compute Fields Data Transformation Examples for specific examples.