Problem with Autocorrelation function

Hello all, I am new to Matlab and I am trying to run some autocorrelation analysis on stock market returns for an academic project.

I have the student version of Matlab (7.14 R2012a) and I have purchased both the Econometrics Toolbox (Version 2.1 R2012a) as well as the Financial Toolbox (Version R2012a).

When I type the autocorr command for my time series, I get the following message:

    Undefined function 'autocorr' for input arguments of type 'double'

Thinking that there may be an error in my code, I have tried to copy paste some sample code from the Econometrics guide for autocorrelation. Yet I still get the same message Undefined function 'autocorr' for input arguments of type 'double.

I then thought that perhaps the econometrics toolbox is not properly installed, so next I typed "ver", and found the econometrics toolbox. However, when I type " which autocorr" I get the following message:

/Applications/MATLAB_R2012a_Student.app/toolbox/econ/econ/autocorr.m  % Has no license available

Why is it saying it has no license available if I have just bought it? Is this the reason why the autocorrelation function is not working/giving error message about input arguments of type double?

Any help would be much appreciated.

Thanks, Marc

[Josh]

Did you ever get your question answered? I am having the same issue.