You can compare the
performance of these two models using the model comparison visualization.
In the explorer, model comparison requires that the response variable,
level, and group by variable are identical in the compared models.
The effects used in each model can differ.
To compare the models
in this example, complete the following steps:
-
Click
to create a new model comparison.
-
In the Model
Comparison window, select Vehicle Type in
the Response field. Select TRUCK in
the Level field.
-
The logistic regression
and decision tree should be available for comparison. Click
between the
Available models area
and the
Selected models area to add both
visualizations to the model comparison.
-
-
The default model comparison
statistic is the Misclassification rate.
In this example, the logistic regression outperforms the decision
tree. That is, it misclassifies significantly fewer observations than
the decision tree. Use the details table to compare all of the available
fit statistics. From these statistics, it is obvious that the logistic
regression outperforms the decision tree.
-
Save the exploration.
Note: Model comparisons do not
persist between sessions. If you sign out of SAS Visual Analytics
and want to return to this model comparison, then you must re-create
it.