Entering default values using ad hoc formulas

Within a formula, operations are performed according to the rules of algebraic logic. Use parentheses to set off separate operations within a formula. Example

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 an ad hoc formula:

  1. Place your cursor in the field where you want to enter a default.
  2. Enter = in the field and type the formula you want to use to calculate the default. Right-click to view the commands available for functions, operators, questions and other question formulas into your formula.
  3. (optional) To save the formula, right-click and choose Save as Q Formula. When the Question Formula window opens, you can name the formula and save it for later use in the model.
  4. When you are finished, press Enter.

Tips:  

  • press Esc to remove = from the field without entering a default.
  • Click image\viewicon.gif to view your ad hoc formula in the Calculation window.
  • If you create an invalid formula, a red triangle appears. Move your cursor over it to view the details of the invalid formula.
  • If you use incorrect syntax when entering your formula, Estimating displays your formula text in red. Place your cursor over any red text to view the error in your syntax.