You can see the following example to learn how to convert a model from one representation to another using the model-creation command for the target model type.
num = [6200 80600 8.06e6 0]; % numerator
den = [1 26 2795 40750 1.8265e6 8.45e6 0]; % denominator
Gp1 = tf(num, den) % Transfer function model
Gp2 = zpk(Gp1) % Zero-pole-gain model
Gp1 =
6200 s^3 + 80600 s^2 + 8.06e06 s
--------------------------------------------------------------
s^6 + 26 s^5 + 2795 s^4 + 40750 s^3 + 1.827e06 s^2 + 8.45e06 s
Continuous-time transfer function.
Gp2 =
6200 s (s^2 + 13s + 1300)
--------------------------------------------
s (s+5) (s^2 + 15s + 1300) (s^2 + 6s + 1300)
Continuous-time zero/pole/gain model.
