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: