public static DecisionTree Build(List <PointXD> data)
{
DecisionTree tree = new DecisionTree();
data.ForEach(point => tree.HandlePoint(point));
tree.Simplify();
return(tree);
}
private DecisionTree HandlePoint(PointXD point, int paramCount = 0)
{
if (paramCount == point.Count)
{
Answer = point.Class;
return(this);
}
Question = paramCount;
object param = point.Attributes[paramCount];
DecisionTree tree = Branches.ContainsKey(param) ? Branches[param] : new DecisionTree();
Branches[param] = tree.HandlePoint(point, ++paramCount);
return(this);
}