Validation: Cross validation
Maximum tree depth:8
Minimum cases for parent node: 20
Minimum cases for child node: 10
Growing method: CRT
Impurity measure: Gini Index
The final tree has 9 nodes with 5 terminal nodes.
V10, V11 and V1 are the top three most important features with
highest values to make decision in our data on splitting the tree.
Increasing number of cases for parent to 30 and child to 15
complexity decreases. Decrease in complexity can be explained by
increasing number of cases in child node, which might result in child not
having enough cases, so parent cannot be split further. Result shows that
remained 3 nodes with 2 terminal nodes 90.6% accuracy.