Cannot load default file for CWT

Question

Z Liang 2019-8-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/476435-cannot-load-default-file-for-cwt

评论： Star Strider 2019-8-16

I have R2019a with several toolboxes

>> ver
-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.6.0.1099231 (R2019a) Update 1
MATLAB License Number: 621625
Operating System: Microsoft Windows 10 Home Version 10.0 (Build 17134)
Java Version: Java 1.8.0_181-b13 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------
MATLAB                                                Version 9.6         (R2019a)
Simulink                                              Version 9.3         (R2019a)
Bioinformatics Toolbox                                Version 4.12        (R2019a)
Communications Toolbox                                Version 7.1         (R2019a)
Computer Vision Toolbox                               Version 9.0         (R2019a)
Control System Toolbox                                Version 10.6        (R2019a)
Curve Fitting Toolbox                                 Version 3.5.9       (R2019a)
DSP System Toolbox                                    Version 9.8         (R2019a)
Data Acquisition Toolbox                              Version 4.0         (R2019a)
Database Toolbox                                      Version 9.1         (R2019a)
Datafeed Toolbox                                      Version 5.8.1       (R2019a)
Deep Learning Toolbox                                 Version 12.1        (R2019a)
Econometrics Toolbox                                  Version 5.2         (R2019a)
Financial Instruments Toolbox                         Version 2.9         (R2019a)
Financial Toolbox                                     Version 5.13        (R2019a)
Global Optimization Toolbox                           Version 4.1         (R2019a)
Image Acquisition Toolbox                             Version 6.0         (R2019a)
Image Processing Toolbox                              Version 10.4        (R2019a)
Instrument Control Toolbox                            Version 4.0         (R2019a)
Optimization Toolbox                                  Version 8.3         (R2019a)
Parallel Computing Toolbox                            Version 7.0         (R2019a)
Signal Processing Toolbox                             Version 8.2         (R2019a)
SimBiology                                            Version 5.8.2       (R2019a)
Simulink Control Design                               Version 5.3         (R2019a)
Spreadsheet Link                                      Version 3.4.1       (R2019a)
Stateflow                                             Version 10.0        (R2019a)
Statistics and Machine Learning Toolbox               Version 11.5        (R2019a)
Symbolic Math Toolbox                                 Version 8.3         (R2019a)
System Identification Toolbox                         Version 9.10        (R2019a)

I am trying to learn the theory/implementation of wavelet transforms, starting here

I cannot load "quadchirp" because file not found. I tried some other defaul data files such as sunspot.dat and it works. Where is this quadchirp file?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Star Strider 2019-8-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/476435-cannot-load-default-file-for-cwt#answer_387901

If you listed the entire result from running the ver function, it seems that you do not have the Wavelet Toolbox.

2 个评论
显示无隐藏无

Z Liang 2019-8-16

Ahh you're right... the linked page said I need signal processing toolbox, but I neglected the actual toolbox for the wavelet... which is what I'm trying to learn

So when I first downloaded Matlab I grabbed all those listed toolboxes expecting to use them at some point. I'm using an institutional license. Do you know how I can go back to add wavelet somehow? I don't have to buy it do I?