1. Integer Variable An integer variable is used to parameterize a whole number in the model. The variable can be referenced from model properties and varied across conditions in parameter studies. Value: The default value of the variable (whole number). You can assign an integer variable to an integer field by using the Set script pop-up menu item or clicking Ctrl+2 in the field. In the condition editor you can assign values to this integer variable. See Variables and Scripting for more information on how to use variables.