Is there a way to convert an frd to a transfer function or to zeros and poles?

Is there a way to convert an frd (frequency-response data model) to a transfer function or to zeros and poles? c2d will not work on frd objects.

Answer 1

[Azzi Abdelmalek]

If you mean, finding a continuous system from discrete system, you can use a d2c function

doc d2c

[Seth]

I mean finding a discrete from a continuous.

[Azzi Abdelmalek]

edit

Then use a c2d function