Increasing maxDepth on a Spark DecisionTreeClassifier typically:

Question

Accepted Answer

Increases model capacity/risk of overfitting while potentially lowering bias on training data — Deeper trees fit harder (and overfit easier). Watch validation metrics.

Answer

Always reduces variance and increases bias

Answer

Has no effect on capacity

Answer

Deletes features

Increasing maxDepth on a Spark DecisionTreeClassifier typically:

Short Explanation

Full Explanation