nodepar (Wavelet Toolbox)

Node parent.

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 "parent(s)" of the nodes N in the tree structure T. 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 i-th node and N(i,2) is the position of 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 i-th node and F(i,2) is the position of 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].

Examples

% Create binary tree of depth 3. 
    t = maketree(2,3); 
    tt = nodejoin(t,5); 
    tt = nodejoin(tt,4); 
    plottree(tt)




% Nodes parent.
    nodepar(tt,[2 2],'deppos')
ans =
    1     1

    nodepar(tt,[1;7;14])
ans =
    0
    3
    6