How can I use the interpreted MATLAB block in simulink to return a vector?

I am trying to use the interpreted MATLAB function in simulink to run an m file. It takes a vector in and outputs a vector, but for some reason gives an "index exceeds matrix dimensions" error. Can somebody please take a look at the simple attached code that illustrates this bug? I cannot figure out what the problem is! Thanks so much!

Answer 1

[Sean de Wolski]

Just use a MATLAB function block.