nodepar
Node parent
Syntax
F = nodepar(T,N)
F = nodepar(T,N,'deppos')
Description
nodepar is a tree-management
utility.
F = nodepar(T,N) returns the indices of
the Äúparent(s)Äù of the nodes N in
the tree T where N can
be a column vector containing the indices of nodes or a matrix that
contains the depths and positions of nodes. In the last case, N(i,1) is
the depth of the i-th node and N(i,2) is
the position of the i-th node.
F = nodepar(T,N,'deppos') is a matrix that
contains the depths and positions of returned nodes. F(i,1) is
the depth of the i-th node and F(i,2) is
the position of the i-th node.
nodepar(T,0) or nodepar(T,[0,0]) returns -1.
nodepar(T,0,'deppos') or nodepar(T,[0,0],'deppos') returns [-1,0].
The nodes are numbered from left to right and from top to bottom. The root index is 0.
Examples
% Create binary tree of depth 3. t = ntree(2,3); t = nodejoin(t,5); t = nodejoin(t,4); plot(t)
% Change Node Label from Depth_Position to Index
% (see the plot function).
% Nodes parent.
nodepar(t,[2 2],'deppos')
ans =
1 1
nodepar(t,[1;7;14])
ans =
0
3
6