disp

WPTREE information

collapse all in page

Syntax

disp(T)

Description

disp(T) displays the contents of the wavelet packet tree T.

example

Examples

collapse all

Examine Wavelet Packet Tree Contents

Open Live Script

Create a wavelet packet tree.

x = randn(1,1000);
t = wpdec(x,3,"db2");

Merge the nodes with indices 3 and 5. Plot the modified tree.

t = nodejoin(t,3);
t = nodejoin(t,5);
fig = plot(t);

Figure contains 2 axes objects and other objects of type uimenu. Axes object 1 with title Tree Decomposition contains 21 objects of type line, text. Axes object 2 with title data for node: 0 or (0,0). contains an object of type line.

Programmatically, in Node Label, change the selected item from Depth_Position to Index.

plot(t,"setNodeLabel",fig,"Index")

Display the contents of the modified tree.

disp(t)

 
Wavelet Packet Object Structure
===============================
Size of initial data :      [1  1000]
Order                :      2
Depth                :      3
Terminal nodes       :      [3   9  10   5  13  14]
------------------------------------------------
Wavelet Name               :db2
Low Decomposition filter   :[-0.1294     0.2241     0.8365      0.483]
High Decomposition filter  :[ -0.483     0.8365    -0.2241    -0.1294]
Low Reconstruction filter  :[  0.483     0.8365     0.2241    -0.1294]
High Reconstruction filter :[-0.1294    -0.2241     0.8365     -0.483]
------------------------------------------------
Entropy Name               :shannon
Entropy Parameter          :0
------------------------------------------------