public DecisionRule Prepend(DecisionRule rule)
{
rule.Positive = Positive;
rule.Label += Label;
rule.Func = x => rule.Func(x) && Func(x);
return(rule);
}
public void BuildRuleSets(List <DecisionRule> ruleSets)
{
if (IsLeafNode())
{
TreeNode node = this; // A leaf node always has a parent unless it's the root
//var expression = new Stack<string>();
var ruleExpression = new DecisionRule($" then => {decision()}", x => decision(), decision());
//expression.Push($" then => {decision()}");
while (node.parent != null)
{
//expression.Push($" if [Attribute {node.parent.splitAttribute.Name} has Value {node.Value}] and ");
var localNode = node;
ruleExpression =
ruleExpression.Prepend(new DecisionRule(
$" if [Attribute {node.parent.splitAttribute.Name} has Value {node.Value}] and ",
x => x[localNode.parent.splitAttribute] == localNode.Value));
node = node.parent;
//sb.Append($"and Attribute={Attribute}")
}
lock (ruleSets)
{
ruleSets.Add(ruleExpression);
}
}
else
{
foreach (var childNode in children.Values)
{
childNode.BuildRuleSets(ruleSets);
}
}
}