Selecting Regression Variables

The Regression Variables dialog opens when you select Multiple Linear Regression in the Methods panel of the Predictor wizard.

  To select dependent and independent variables for regression analysis:

  1. In the Regression Variables dialog, move the dependent variables into the Dependent variables (Y's) list:

    1. Select the name of a dependent variable in the Independent variables (X's) list.

      You can have more than one dependent variable. Predictor forecasts them all, one at a time, as functions of all the same independent variables.

    2. Click Move Right button with double arrows pointing right between the lists.

      The variable moves to Dependent variables (Y's).

  2. Confirm that all variables are included in the appropriate list.

  3. To lag independent variable data by a number of time periods:

    1. Select a variable in Independent variables (X's).

    2. Enter the number of time periods to lag the variable in the Lag text box below the list.

    3. Repeat for any other independent variables you want to lag.

  4. Clear the check box for any variables you do not want to include in the regression.

  5. Click OK.

    The Methods panel is displayed again (see “Using Multiple Linear Regression” on page 26).