Hello =)

I'm having trouble trying to use the 'hilbert' function and I'm hoping someone can give me advice.

When I try to run the hilbert example in the help file:
xr = [1 2 3 4];
x = hilbert(xr)

I get: "??? Undefined function or method 'hilbert' for input arguments of type 'double'."
as an error.

I've tried:
">> ver"
and get :"Signal Processing Toolbox                             Version 6.7        (R2007a)"
so I should have the toolbox

If I type in "hilb" and hit tab, it shows "hilbert" as one of the options.  One of the things it also shows is "hilberttransformdemo," which I ran to test, and got this error: "??? Undefined function or method 'rectwin' for input arguments of type 'double'."

I've updated my cache by going to >file>preferences>general>update cache button and also restarted MATLAB and my computer

If I type "doc hilbert," the help screen pops up for it, but if I type "hilbert.m," I get "??? Undefined variable "hilbert" or class "hilbert.m"."

I've tried running "fft" and that works.

I'm completely stumped on what to do next to get this function to work :(  If anyone has any more ideas to try, I'd love to hear them.  Thanks!  

"Florence Baluyot" <ftbMatStuff@gmail.com> wrote in message <hs7dvb$dlm$1@fred.mathworks.com>...
> Hello =)
> 
> I'm having trouble trying to use the 'hilbert' function and I'm hoping someone can give me advice.
> 
> When I try to run the hilbert example in the help file:
> xr = [1 2 3 4];
> x = hilbert(xr)
> 
> I get: "??? Undefined function or method 'hilbert' for input arguments of type 'double'."
> as an error.
> 
> I've tried:
> ">> ver"
> and get :"Signal Processing Toolbox                             Version 6.7        (R2007a)"
> so I should have the toolbox
> 
> If I type in "hilb" and hit tab, it shows "hilbert" as one of the options.  One of the things it also shows is "hilberttransformdemo," which I ran to test, and got this error: "??? Undefined function or method 'rectwin' for input arguments of type 'double'."
> 
> I've updated my cache by going to >file>preferences>general>update cache button and also restarted MATLAB and my computer
> 
> If I type "doc hilbert," the help screen pops up for it, but if I type "hilbert.m," I get "??? Undefined variable "hilbert" or class "hilbert.m"."
> 
> I've tried running "fft" and that works.
> 
> I'm completely stumped on what to do next to get this function to work :(  If anyone has any more ideas to try, I'd love to hear them.  Thanks!  

Hi Florence, Are you running Matlab in a networked (concurrent) configuration where you have to checkout licenses for particular toolboxes? fft is a base MATLAB function, not a Signal Processing Toolbox function. It appears that you are not able to use the Signal Processing Toolbox. If you run the command

license('test','signal_toolbox')

does it return a 1?

try 

license('checkout','signal_toolbox')

If you are running MATLAB under a concurrent license, check with your local administrator.

Wayne

"Wayne King" <wmkingty@gmail.com> wrote in message 
> 
> Hi Florence, Are you running Matlab in a networked (concurrent) configuration where you have to checkout licenses for particular toolboxes? fft is a base MATLAB function, not a Signal Processing Toolbox function. It appears that you are not able to use the Signal Processing Toolbox. If you run the command
> 
> license('test','signal_toolbox')
> 
> does it return a 1?
> 
> try 
> 
> license('checkout','signal_toolbox')
> 
> If you are running MATLAB under a concurrent license, check with your local administrator.
> 
> Wayne

This appears to be the problem!  Since it showed up when I checked >>ver, I assumed the license was still updated.  Now I know I need to talk to our tech guy to update this.  Thanks for the help, Wayne!