Missing Functions R2013a installation

I recently upgraded (from R2009a) to R2013a. When I run some of my scripts I'm getting "Undefined function of variable... " errors. For example when I call 'decimate' I get the error: Undefined function 'zp2ss' for input arguments of type 'double'.

I was able to find the zp2ss function in my 2009a polyfun toolbox but it was not in any of my 2013a toolboxes. I have similar problems with mab2db and abcdchk. Was there some kind of problem with my installation?

Answer 1

[Sean de Wolski]

zp2ss is in the Signal Processing Toolbox. If you do not have this installed or licensed then it will nto work. The same for abcdchk I believe.

mat2db is not something we ship to my knowledge but might come from here:

FEX Make sure it's on your path

[Dave]

I do have the Signal Processing Toolbox installed and licensed. I have used other functions from that toolbox without problems.

I meant mag2db.

[Sean de Wolski]

What is the output from:

which -all zp2ss

?

[Dave]

Thank you. zp2ss (and many other functions) was in the C:\Program Files\MATLAB\R2013a\toolbox\shared\controllib\general\ directory. I added that to my path, ran rehash toolboxcache and everything is working.

Answer 2

[the cyclist]

You can often get insight into these sorts of things with a google search, which will often find the online documentation.

For example, I googled zp2ss and MATLAB, and learned that zp2ss is in the Signal Processing Toolbox now.

[Dave]

I do have the R2013a Signal Processing Toolbox installed and it is in my path. I have successfully used other functions from that toolbox. When I looked thought the file listing I did not see zp2ss.