how to shade between two discrete time step responses?

how shade between two discrete time systems of step responses

[Birdman]

What do you mean? Can you share your code?

[sudharsana rao]

T=0.01;
z=tf('z',T)
s1=tf([1 3 8],[6 9 4.9 0.8]);
s2=tf([2 4 10],[6 9.5 5 0.85],T);
[y1,t] = step(s1,t);
[y2,t] = step(s2,t);
fill([t fliplr(t)],[y2 fliplr(y1)],'r')

[KSSV]

Undefined function or variable 't'.

Error in function (line 7)
  [y1,t] = step(s1,t);

[sudharsana rao]

T=0.01;
z=tf('z',T)
s1=tf([1 3 8],[6 9 4.9 0.8]);
s2=tf([2 4 10],[6 9.5 5 0.85],T);
t=0:0.1:3;
[y1,t] = step(s1,t);
[y2,t] = step(s2,t);
fill([t fliplr(t)],[y2 fliplr(y1)],'r')

[Jan]

See your other thread https://www.mathworks.com/matlabcentral/answers/375628-how-to-color-between-two-step-responses

Answer 1

[Birdman]

T=0.01;
z=tf('z',T)
s1=tf([1 3 8],[6 9 4.9 0.8]);
s2=tf([2 4 10],[6 9.5 5 0.85],T);
t=0:0.01:3;
[y1,t] = step(s1,t);
[y2,t] = step(s2,t);
fill([t.' fliplr(t.')],[y2.' fliplr(y1.')],'r')

with the above code, you get the plot in attached figure. Hope this helps.

[sudharsana rao]

thanks for this work, but still, this code is not giving shade to the entire sample

[Birdman]

What did you expect?