Rlocus not working correctly.

The rlocus function does not work correctly for polynomial transfer functions.

I tested it on the provided tutorial code provided by mathworks and it failed, so I believe this eliminates a mistake on my part?

Attached is an image of what happens when running the tutorial code as well as the link to the code.

https://www.mathworks.com/help/control/ref/rlocus.html

Answer 1

[Charles Zaloom]

Solved it myself,

Had a rogue function file that shared its name with a dependent of the rlocus function.

[Harrison Greg]

hello, excuse me for asking help about this problem, I met such a similar problem, and I had tried many ways, but no solution. So, could you please give me your solution of this problem with more details, thank you very much.