/// <summary>
/// Traverse a subtree using a <see cref="DecisionTreeTraversal">tree
/// traversal method</see>. Can be iterated with a foreach loop.
/// </summary>
///
/// <param name="method">The tree traversal method. Common methods are
/// available in the <see cref="TreeTraversal"/>static class.</param>
/// <param name="subtree">The root of the subtree to be traversed.</param>
///
/// <returns>An <see cref="IEnumerable{T}"/> object which can be used to
/// traverse the tree using the chosen traversal method.</returns>
///
public IEnumerable <DecisionNode> Traverse(DecisionTreeTraversalMethod method, DecisionNode subtree)
{
if (subtree.Owner != this)
{
throw new ArgumentException(
"The node does not belong to this tree.", "subtree");
}
return(new TreeTraversal(subtree, method));
}
public TreeTraversal(DecisionNode tree, DecisionTreeTraversalMethod method)
{
this.tree = tree;
this.method = method;
}
/// <summary>
/// Traverse the tree using a <see cref="DecisionTreeTraversal">tree
/// traversal method</see>. Can be iterated with a foreach loop.
/// </summary>
///
/// <param name="method">The tree traversal method. Common methods are
/// available in the <see cref="TreeTraversal"/>static class.</param>
///
/// <returns>An <see cref="IEnumerable{T}"/> object which can be used to
/// traverse the tree using the chosen traversal method.</returns>
///
public IEnumerable <DecisionNode> Traverse(DecisionTreeTraversalMethod method)
{
return(new TreeTraversal(Root, method));
}
