Change the output Y-labels in a figure of a multi-output dynamic system

I don't know how I can change the names of the Y-labels out(1), out(2), out(3) and out(4) in this multiplot figure...

[maffew]

You could either throw these into multiple plots with step(sys(1))

OR

You could use subplots. For example,

figure
subplot(2,1,1)
step(sys(1))
ylabel('Output 1')
subplot(2,1,2)
step(sys(2))
ylabel('Output 2')

Unfortunately, you lose the larger label. There's a number of options for that. Looks like someone made a thing, https://www.mathworks.com/matlabcentral/fileexchange/7772-suplabel

Answer 1

[madhan ravi]

ylabel(...) after each subplot 

[thomas michiels]

That is what I would normally do, but I came to this figure as the 4-way output of a dynamic system with the following code:

f=1200;

A=[0 1 0 0;-k/m1 -(b+c)/m1 k/m1 c/m1;0 0 0 1;k/m2 c/m2 -k/m2 -c/m2];

B=[0;f/m1;0;0];

C=[1 0 0 0;0 1 0 0;0 0 1 0;0 0 0 1];

D=[0;0;0;0];

sys=ss(A,B,C,D);

figure(1)

t1=0:1:900;

step(sys,t1);

[y,t1]=step(sys,t1);

So the subplots are not defined in my previous code.