To add or change the grouping variables
main topics
      
examples 

1    Select and double-click all fitted lines. See Selecting groups and single items.

2    Click the Groups tab.

3    In Categorical variables for grouping, enter up to three columns containing grouping variables  to fit a line for each group and display a legend.

4    To update all data displays to use the same grouping variables, check Apply same grouping to other data displays. (Not available with distribution fits.)

5    Click OK.