How to Save Variables From a Classification and Regression Tree (CART)

This article describes how to go from a CART output...

...and save the Predicted Values variables containing predicted values for each case in the data and Probabilities of Each Response variable containing the probabilities of each response. The example below contains predicted values and probabilities for the CART output created as described here.

Requirements

• A Classification And Regression Trees (CART) output.

Method

1. Select the CART output.
2. In the object inspector go to Data > Save Variable(s).
3. Select Predicted Values to save a variable containing the predicted value of the outcome variable. 
4. Select Probabilities of Each Response to save a variable set containing the probabilities of each response.
5. OPTIONAL: To create a table showing respondent-level predicted values or probabilities, drag the new variable onto a page.

Next

How to Create a Classification And Regression Trees (CART)

How to Run Machine Learning Diagnostics - Prediction-Accuracy Table