Exercise

Visualizing classification trees

Due to government rules to prevent illegal discrimination, lenders are required to explain why a loan application was rejected.

The structure of classification trees can be depicted visually, which helps to understand how the tree makes its decisions. The model loan_model that you fit in the last exercise is available to use.

Instructions

100 XP

Type loan_model to see a text representation of the classification tree.
Load the rpart.plot package.
Apply the rpart.plot() function to the loan model to visualize the tree.
See how changing other plotting parameters impacts the visualization by running the supplied command.