Before you begin
If you have not already opened the Model window and selected the model you want to work with, do so now. How?
To enter a default value using a question formula:
- Place your cursor in the field where you want to enter a default.
- Right-click and choose List Q-formulas. (You can also enter a calculation in the field and save it as a question formula. How?
- From the Question Formula List, select the question formula you want to use and click [OK]. The name of the selected question formula appears in pink in the field.
- Estimating requires that the question formula calculate a value that is compatible with the line type. For example, if you are entering a formula to calculate the default value for a numeric question, Estimating checks to see if the question formula you choose returns a numeric response and warns you if it does not.
- When you are finished, press Enter.
Tips:
- Press ESC to remove = from the field without entering a default.
- You can move your hover tip over the formula name to display the formula calculation.
- If you enter an invalid formula in the field, a red triangle appears. Move your cursor over it to view the details of the invalid formula.
- Instead of choosing from a list of available question formulas, you can create an ad hoc formula to calculate the default. How?