plot function not working

the code for my project is as follows

A = [1.1269   -0.4940    0.1129;
     1.0000         0         0;
          0    1.0000         0];

B = [-0.3832;
      0.5919;
      0.5191];

C = [1 0 0];
Plant = ss(A,[B B],C,0,-1,'inputname',{'u' 'w'},'outputname','y');
Q = 1;
R = 1;
[kalmf,L,P,M] = kalman(Plant,Q,R);
M;
kalmf = kalmf(1,:);
a = A;
b = [B B 0*B B B 0*B B B 0*B B B 0*B B B 0*B B B 0*B B B 0*B B B 0*B B B 0*B 0*B];
c = [C;C];
d = [0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1; 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1];
P = ss(a,b,c,d,-1,'inputname',{'u' 'w' 'v' 'a1' 'a2' 'a3' 'a4' 'a5' 'a6' 'a7' 'a8' 'a9' 'b1' 'b2' 'b3' 'b4' 'b5' 'b6' 'b7' 'b8' 'b9' 'c1' 'c2' 'c3' 'c4' 'c5' 'c6' 'c7'},'outputname',{'y' 'yv'});
sys = parallel(P,kalmf,1,1,[],[]);
SimModel = feedback(sys,1,4,2,1);   % Close loop around input #4 and output #2
SimModel = SimModel([1 2],[28 1 2]); % Delete yv from I/O list
SimModel.InputName;
SimModel.OutputName;

t = [1:28];     
src = dsp.SignalSource('SamplesPerFrame',1);
src.Signal = xlsread('D:\ieee14\samplefault.xlsx',1,'A1:AB1');
w = src.Signal;
src1 = dsp.SignalSource('SamplesPerFrame',1);
src1.Signal = xlsread('D:\ieee14\faultset.xlsx',1,'A1:AB1');
u = src1.Signal;
src2 = dsp.SignalSource('SamplesPerFrame',1);
src2.Signal = xlsread('D:\ieee14\faultset.xlsx',1,'A5601:AB5601');
v = src2.Signal;

[out,x] = lsim(SimModel,[w;v;u]);
y = out(:,1);   % true response
y = y';
ye = out(:,2);  % filtered response
ye = ye';
yv = y + v;  % measured response

subplot(211),plot(t,y,'--',t,ye,'-'),

ylim([-2,0.6]);
xlim([1,30]);

xlabel('No. of samples'), ylabel('Output')
title('Kalman filter response')
subplot(212), plot(t,y-yv,'-.',t,y-ye,'-'),
xlabel('No. of samples'), ylabel('Error')

i get the following output(attached)

the size of all variables t, u, v, w, x, y, ye, yv are 1x28 double

why is plot(t,y,'--') not plotting? Also i want my kalman filter to take 5061 rows and 28 columns at a time how can i do that?

Thanks in advance