lowpass (version 9.2.0.556344)

I have the Signal Analyzer app loaded, but some of its functions (e.g. lowpass, highpass) are not found. (I see them on disk, but MATLAB doesn't find them.) What am I doing wrong?

Answer 1

[Bish Erbas]

Perhaps MATLAB's default search path has been removed or modified? If you are willing to restore the search path to factory-installed state, run the following command:

restoredefaultpath

https://www.mathworks.com/help/matlab/ref/restoredefaultpath.html

[Sean Donnelly]

Thanks, Bish! FYI, I updated to R2018b (9.5.0.944444); this completely solved the problem.