disp
WPTREE
information
Syntax
Description
Examples
Examine Wavelet Packet Tree Contents
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);
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 ------------------------------------------------
Input Arguments
T
— Wavelet packet tree
wptree
object
Wavelet packet tree, specified as a wptree
object.
Example: T = wpdec(rand(1,1000),2,"db2")
Version History
Introduced before R2006a
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