// returns the index of the newly created tree node
private int CreateLeafNode(int startIdx, int endIdx, ILossFunction lossFunction)
{
// write a leaf node
var val = lossFunction.LineSearch(originalY, curPred, internalIdx, startIdx, endIdx);
tree[curTreeNodeIdx] = new RegressionTreeModel.TreeNode(RegressionTreeModel.TreeNode.NO_VARIABLE, val);
EnqueuePartitionSplit(curTreeNodeIdx, startIdx, endIdx);
curTreeNodeIdx++;
return(curTreeNodeIdx - 1);
}
// returns the index of the newly created tree node
private int CreateLeafNode(int startIdx, int endIdx, ILossFunction lossFunction) {
// write a leaf node
var val = lossFunction.LineSearch(originalY, curPred, internalIdx, startIdx, endIdx);
tree[curTreeNodeIdx] = new RegressionTreeModel.TreeNode(RegressionTreeModel.TreeNode.NO_VARIABLE, val);
EnqueuePartitionSplit(curTreeNodeIdx, startIdx, endIdx);
curTreeNodeIdx++;
return curTreeNodeIdx - 1;
}