csaps function in Curve Fitting Toolbox not being found

The Curve Fitting Toolbox in listed when I use VER, but whenever I try to call csaps with any number of inputs, I get

"Undefined function or method 'csaps' for input arguments of type 'double'."

Matlab must not be finding the function at all, otherwise the error should tell me about not enough or too many input arguments. Help?

Answer 1

[Shashank Prasanna]

Please try the following:

>> which -all csaps

what is the output? This should tell you where it is, if its on the path.

If it is not on the path, then do the following to fix the path (as long as you have the license and the toolbox is installed)

>> restoredefaultpath
>> rehash toolboxcache