Exercise

Entropy vs Gini index

In this exercise you'll compare the test set accuracy of dt_entropy to the accuracy of another tree named dt_gini. The tree dt_gini was trained on the same dataset using the same parameters except for the information criterion which was set to the gini index using the keyword 'gini'.

X_test, y_test, dt_entropy, as well as accuracy_gini which corresponds to the test set accuracy achieved by dt_gini are available in your workspace.

Instructions

100 XP

Import accuracy_score from sklearn.metrics.
Predict the test set labels of dt_entropy and assign the result to y_pred.
Evaluate the test set accuracy of dt_entropy and assign the result to accuracy_entropy.
Review accuracy_entropy and accuracy_gini.

Take Hint (-30 XP)