Recursive Partitioning Simulator

Recursive Partitioning Simulator

Click to add splits. Each split divides one region into two, minimizing impurity. Vertical and horizontal splits alternate automatically.

Class 0

Class 1

Splits: 0 Avg Gini: 0.500

Instructions

Click anywhere on the plot to add a split at that location
Splits alternate between vertical (X) and horizontal (Y) automatically
Each split creates rectangular decision regions
Hover over regions to see their Gini impurity
Lower Gini means more pure (homogeneous) regions
Watch average Gini decrease as you add splits