Invalid wavelet name for continous wavelet transform

I try to 3D plot some CWT I have computed. According to MATLAB, valid wnames are amor, morse and bump. However, when I use amor in this script I found:

   t = linspace(-1,1,512);
   s = 1-abs(t);
   c = cwt(s,Out.Ext{1}(:,8),'amor');
   F = scal2frq(Out.Ext{1}(:,8),'amor');
   surf(t,F,abs(c)); shading('interp');
   xlabel('Time'); ylabel('Frequency');

I get the following error: Invalid wavelet name: amor.

Also, when I put as wname = sym4 or haar or anything that is not valid name for CWT I get a 3D plot. Why does this happen?

Answer 1

[Star Strider]

There are now two versions of cwt, an old version and this version of cwt (link) that was introduced in R2016b. I have not worked with wavelets recently, so check to see the version you have. The command syntax appears to be different.

[Ioannis Agalliadis]

I used the newer version. If you read in the second description of the parameters from the documentation it states this :

wt = cwt(x,wname) uses the analytic wavelet specified by wname to compute the CWT. Valid options for wname are 'morse', 'amor', and 'bump', which specify the Morse, Morlet, and bump wavelet, respectively.

[Star Strider]

I read it. You seem to be using the calling syntax of the older version:

c = cwt(s,Out.Ext{1}(:,8),'amor');

in which you have to use the wavelets in wavemngr. The Morlet wavelet in that conttext is 'morl', not 'amor'.

That could be the problem.