Why do I receive an error when I run the example code in the SEGMENT function documentation in System Identification Toolbox 6.0.1 (R14)?

I tried to follow the example in the SEGMENT function documentation at the following location:

 <http://www.mathworks.com/access/helpdesk/help/toolbox/ident/segment.shtml>

I typed in the following code in the MATLAB command window, but I received the following error message:

 ??? Error using ==> ones

 Size vector must be a row vector with integer elements.

Answer 1

[MathWorks Support Team]

This bug has been fixed in Release 2008a (R2008a).

The example code at the end of the documentation should read as follows:

y = sin([1:50]/3)';

thm = segment([y,ones(length(y),1)],[0 1 1],0.1);

plot([thm,y])