If one or more interval variables are selected in a data table when you run the analysis, then the following occurs:
The first selected nominal variable is automatically entered in the Y Variables field of the Variables tab.
Subsequent selected nominal variables are automatically entered in the Classification Variables field.
Selected interval variables are automatically entered in the Quantitative Variables field.
Any variable in the data table with a Frequency or Weight role is automatically entered in the appropriate field of the Roles tab.