Wavelet Toolbox™

Write values in WPTREE fields

Syntax

• T = write(T,'cfs',NODE,COEFS)
  T = write(T,'cfs',N1,CFS1,'cfs',N2,CFS2, ...)
  

Description

T = write(T,'cfs',NODE,COEFS) writes coefficients for the terminal node NODE.

T = write(T,'cfs',N1,CFS1,'cfs',N2,CFS2, ...) writes coefficients CFS1, CFS2, ... for the terminal nodes N1, N2, ....

Caution The coefficients values must have the suitable size. You can use S = read(T,'sizes',NODE) or S = read(T,'sizes',[N1;N2; ...]) in order to get those sizes.

    Examples

• % Create a wavelet packet tree.
  load noisdopp; x = noisdopp;
  t = wpdec(x,3,'db3');
  t = wpjoin(t,[4;5]);
  
  % Plot tree t and click the node (0,0) (see the plot function).
  plot(t);
  
  
  % Write values.
  sNod = read(t,'sizes',[4,5,7]);  
  cfs4 = zeros(sNod(1,:));
  cfs5 = zeros(sNod(2,:));
  cfs7 = zeros(sNod(3,:));
  t = write(t,'cfs',4,cfs4,'cfs',5,cfs5,'cfs',7,cfs7);
  
  % Plot tree t and click the node (0,0) (see the plot function).
  plot(t)
  
  
  

See Also
disp, get, read, set

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