数据不得超过2维！

% Assigning the variables
Ksys = 0.8667;
T1 = 1.65;

% PT1 modeling
num = [0 Ksys];
den = [T1 1];
PT1 = tf(num, den);

% Step Response
t = 0:0.01:10;
y = 4.5 * step(PT1, t);

% Plotting
plot(t, y);
ylim([0, 6]);

% Assigning the variables
Ksys = 0.8667;
Tc = 1.65;
Td = 0.25;

% PTn modeling
num = [0 Ksys];
den = [Tc 1];
PT1 = tf(num, den);
sh = pade(Td, 2);
PTn = PT1 * sh;

% Step Response
t = 0:0.01:10;
y = 4.5 * step(PTn, t);

% Plotting
plot(t, y);
ylim([0, 6]);

??? Error using ==> plot
Data may not have more than 2 dimensions

Error in ==> TestProject at 25
plot(t, y);