When your analysis includes a
group by variable, the
Fit Summary window displays a Goodness of Fit
plot and Variable Importance plot.
The Variable Importance plot enables you to select a single variable to inspect within
each level of the group by variable. Use the
drop-down menu to select the variable that you want to inspect. Each dot in the Variable Importance
plot represents a
model effect. The bars are for the model effect chosen in the drop-down menu.
The Goodness of Fit plot, which is not available when there is no group by variable,
displays how well the model predicts the
response variable within each level of the group by variable. Use this plot to determine whether your
model has a significantly different fit within different levels.
Notice that when you select a group by variable level, the Residual Plot, Assessment,
and Influence Plot windows are updated.
This enables you to further investigate each level of the group by variable.
Use
to specify how the plot is sorted.