Why are the active demo links in the Signal Processing Blockset 6.0 (R14) documentation broken?

The following steps display the behavior:

a. Open the help browser for Power Spectrum estimates (Signal Processing Blockset->Getting Started->Frequency Domain Signals)

b. Click on the 'Setting the Model Parameters' link.

c. Toward the beginning of the documentation, click on the active example link 'doc_gstut9'.

Rather than opening the .mdl file, I receive the following error message:

 ??? Undefined function or variable 'doc_gstut9'.

Also, if I try to access the file using the RUN command:

run([docroot '/toolbox/dspblks/dsp_examples/doc_gstut9'])

I receive the error.

Answer 1

[MathWorks Support Team]

This bug has been fixed in Release 14 Service Pack 2 (R14SP2). For previous releases, please read below for any possible workarounds:

We have verified that there is a bug in the Signal Processing Blockset 6.0 (R14) documentation. This is specifically present for example files whose name is of the type 'doc_modelname' (for example, 'doc_gstut9').

To work around this issue, use RUN in the MATLAB command window:

run([docroot '/toolbox/dspblks/dsp_examples/modelname.mdl'])

The above line opens the Simulink model, which can then be run. Please note that the name of the file has been changed from 'doc_ modelname' in the Help browser to 'modelname.mdl' in call to RUN.