WTMM for 1-D

this function have rshift and lshift which is not defined.

Answer 1

[John D'Errico]

The crystal ball is so foggy today. We don't know what the function wtmm does, since it is not part of MATLAB. Nor do we have lshift and rshift.

My guess is that wtmm is part of this USER-provided toolbox for wavelet analysis .

In there I found a function called wtmm, that also happens to call functions called lshift and rshift.

So it would appear that you just have no idea how to install a tool from the file exchange.

Download the ENTIRE toolbox, not just one function.

Unzip the file.

Add the directory to your search path.

[NASSRE]

really I am down load this function wavelet transform modulus maximum (WTMM), This function include shift right and left which is not available. I really unzip this function. Thanks

[Walter Roberson]

Did you use pathtool to add the appropriate directory to your MATLAB path? Alternately, did you use the Add-On Explorer to install the toolbox?

[John D'Errico]

Not correct, because those tools ARE supplied in the toolbox. So you did not install the toolbox properly on your search path. Easily enough found in:

.../Wavelets/Wavelab850/Orthogonal/lshift.m

and

.../Wavelets/Wavelab850/Orthogonal/rshift.m

You will need to add some subdirectories to your search path, else you be soon asking where is some other function.

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