Evaluation and Deployment - Data Mining for the Masses - page 229

5) Report your training data set's ability to predict.
6) Change your Decision Tree operator's algorthim to gini_index and re-run your model.
7) Report your results in the context of any changes that occurred in your training data set's
ability to predict.
Challenge Step!
8) Change your Decision Tree operator's algorithm to one of the other options, such as
information_schema, and report your results again, comparative to gain_ratio and
gini_index.
Extra Challenge Step!
9) Repeat steps 1-7 for the linear regression training data set (Chapter 8). You will need to
use a slightly different Performance operator. Report your results. If you would like,
repeat step 8 for your Chapter 8 exercise training data set and report your results.