discrete time lsim

I am getting the error

??? Error using ==> rfinputs>LocalTimeRespCheck Input data U and time vector T must have the same number of samples.

Error in ==> TwoTank at 59 [y, t, x] = lsim(augss, u, 0:0.002:0.402,X0);

when i excecute the code : for i=1:101; u(i,1)= 0.1*i; end

for i=101:200; u(i,1) = 10*sin(0.1*i); end

%simulation

[y, t, x] = lsim(augss, u, 0:0.002:0.402,X0);