Transfer Functions - Step Response, Bode Response

 How can we analyze the transfer function using Matlab? 

clear all;
close all;

Num=97.74;
Den=[1, 4.506, 58.798];
H=tf(Num, Den)

figure(1)
step(H), hold on

sysd=c2d(H, 0.01,'zoh')
step(sysd)

figure(2)
bode(H)