Wavelet Toolbox

Example 1: plot and wpviewcf

• load noisbump
  x = noisbump;
  t = wpdec(x,3,'db2');
  fig = plot(t);
  
  % Change Node Label from Depth_position to Index and
  % click the node (7). You get the following figure.
  
  
  % Change Node Action from Visualize to Split-Merge and
  % merge the node 2. You get the following figure.
  
  
  % From the command line, you can get the new tree.
  newt = plot(t,'read',fig);
  
  % The first argument of the plot function in the last command
  % is dummy. Then the general syntax is:
  %    newt = plot(DUMMY,'read',fig);
  % where DUMMY is any object parented by an NTREE object.
  % DUMMY can be any object constructor name, which returns
  % an object parented by an NTREE object. For example:
  %    newt = plot(ntree,'read',fig);
  %    newt = plot(dtree,'read',fig);
  %    newt = plot(wptree,'read',fig);
  
  % From the command line you can modify the new tree,
  % then plot it.
  newt = wpjoin(newt,3);
  fig2 = plot(newt);
  
  % Change Node Label from Depth_position to Index and
  % click the node (3). You get the following figure.
  
  
  % Using plot(newt,fig), the plot is done in the figure fig,
  % which already contains a tree object.
  
  % You can see the colored wavelet packets coefficients using
  % from the command line, the wpviewcf function (type help
  % wpviewcf for more information).
  wpviewcf(newt,1)
  
  % You get the following plot, which contains the terminal nodes
  % colored coefficients.
  
  
  

Simple Use of Objects Through Four Examples

Example 2: drawtree and readtree

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