Wavelet Toolbox

ind2depo

Node index to node depth-position

Syntax

• [D,P] = ind2depo(ORD,N)
  

Description

ind2depo is a tree-management utility.

For a tree of order ORD, [D,P] = ind2depo(ORD,N) computes the depths D and the positions P (at these depths D) for the nodes with indices N.

The nodes are numbered from left to right and from top to bottom. The root index is 0.

N must be a column vector of integers (N 0).

Note that [D,P] = ind2depo(ORD,[D P]).

Examples

• % Create initial tree.
  ord = 2; t = ntree(ord,3);    % Binary tree of depth 3. 
  t = nodejoin(t,5); 
  t = nodejoin(t,4); 
  plot(t)
  
  % Change Node Label from Depth_Position to Index
  % (see the plot function).
  
  
  % List t nodes (index).
  aln_ind = allnodes(t)
  
  aln_ind =
      0 
      1 
      2 
      3 
      4 
      5 
      6 
      7 
      8 
     13 
     14
  
  % Switch from index to Depth_Position. 
  [depth,pos] = ind2depo(ord,aln_ind); 
  aln_depo = [depth,pos]
  
  aln_depo =
      0     0 
      1     0 
      1     1 
      2     0 
      2     1 
      2     2 
      2     3 
      3     0 
      3     1 
      3     6 
      3     7
  

See Also
depo2ind

idwt2

intwave