ROC from Z transformation

if you have a tf() in MATLAB for a Z transformation is there any way to get the Region of convergence data from it? (ROC)

Thanks!

Answer 1

[Azzi Abdelmalek]

If you want to get the ROC, you have to do it manually. there is nothing reafering to region of convergence in ztrans function

doc ztrans

Also, we can't get the ROC from the resulting z transform, because the z transform is found in the region of convergence

Answer 2

[Bisma]

Doc ztrans

Answer 3

[Nikhil]

i dont know either

Answer 4

[Nikhil]

please tell me as well