Predictor Continuous Variables Use this field to indicate numeric variables to be used to predict the Dependent Variable. To Specify One or More Predictor Continuous Variables: Specify an Input SAS Data Set. All of the variables in the input data set are displayed in the Available Variables field. Examine the list of available variables. Highlight one or more predictor continuous variables. To highlight multiple variables at once, hold down Ctrl while left-clicking on them. Click to add the highlighted variable(s) to the Predictor Continuous Variables field, as shown below: