How to create a MATLAB function for transfer function?

Produce a MATLAB function which takes inputs

• Continuous-time transfer function (𝐺𝑝(𝑠))

• Sampling time (T) • The time duration for step response (t_final)

and return

• Pulse transfer function corresponding to the continuous-time transfer function with a zero-order hold

• Discrete-time step response of the feedback system (time values and step response values).

• Percent overshoot of the step response

Can anyone help?