Parsing expressions
When you add operators to the expression, the expression’s parameters are usually added automatically to the Parse Expression pane. However, when you complete your expression or edit it, you may need to parse the expression see all of the parameters.
To parse the expression parameters:
- Click the Parse Expression button below the Build Expression pane.
If the expression is not valid, a red error message will appear at the bottom of the Expression Builder window.
If the expression is valid, the expression parameters and attributes (Input Columns) will be displayed in the in the Parse Expression pane. See Testing an expression.