Multinomial Logistic Regression Reference Category

By default, the Multinomial Logistic Regression procedure makes the last category the reference category. This dialog box gives you control of the reference category and the way in which categories are ordered.

Reference Category. Specify the first, last, or a custom category.

Category Order. In ascending order, the lowest value defines the first category and the highest value defines the last. In descending order, the highest value defines the first category and the lowest value defines the last.

How to Set the Reference Category

This feature requires the Regression option.

1. From the menus choose:

   Analyze > Regression > Multinomial Logistic Regression...

2. Select a dependent variable in the Multinomial Logistic Regression dialog box, then click Reference Category.
3. Select the reference category and category order.