Profits

For categorical dependent variables, you can assign revenue and expense values to levels of the dependent variable.

• Profit is computed as revenue minus expense.
• Profit values affect average profit and ROI (return on investment) values in gains tables. They do not affect the basic tree model structure.
• Revenue and expense values must be numeric and must be specified for all categories of the dependent variable displayed in the grid.

Profits and Value Labels

This dialog box requires defined value labels for the dependent variable. It is not available unless at least two values of the categorical dependent variable have defined value labels. See the topic To specify value labels for more information.

To Specify Profits

This feature requires the Decision Trees option.

1. From the menus choose:

   Analyze > Classify > Tree...

2. In the main Decision Tree dialog box, select a categorical (nominal, ordinal) dependent variable with two or more defined value labels.
3. Click Options.
4. Click the Profits tab.
5. Click Custom.
6. Enter revenue and expense values for all dependent variable categories listed in the grid.