Some Identification functions missing

I am trying to use some identification functions such as ssest and greyest but for some reason I am getting this message

ssest not found.

Use the Help browser search field to search the documentation, or type "help help" for help command options, such as help for methods.

I am able to run other identification functions such as pem, idgrey, and even I can run the identifycation GUI by typing ident in the command window.

Any suggestion? Tks!

Answer 1

[Ryan G]

There are a couple things you can try:

rehash toolboxcache
restoredefaultpath

That alone may clear it up. Beyond that do:

which -all ssest

See if MATLAB knows it exists, if not I like search everything to search for files on my PC. You can use the windows search but it stinks. See if the file exists on your PC. I have seen some functions only available in certain bit-versions of MATLAB. For example the bloomberg function does not get installed in 64-bit MATLAB (at least not the last time I checked).

Other than that you can go to mathworks.com and just download the toolbox to install. Shouldn't take that long for just the sys ID toolbox.