Matrix dimensions must agree ERROR WITH MY CODE.Can anyone suggest a solution to this problem in my code below

 x1      = [x_m';zeros(t_o,1)]; 
       x2      = [zeros(t_o,1);x_m';zeros(t_o,1)];
       x3      = [zeros(2*t_o,1);x_m';zeros(t_o,1)];
       x4      = [zeros(3*t_o,1);x_m';zeros(2*t_o,1)];
       x5      = [zeros(4*t_o,1); x_m'];
      y_m = x1+x2+x3+x4+x5;% Simulated Measurement
     y_m=y_m';

[Torsten]

Please give an example how x1,x2,x3,x4 and x5 are supposed to look like.

Answer 1

[Walter Roberson]

Suppose the number of rows in x_m' is M. Then x1 has M+t_o rows, x2 has t_o+M+t_o = M+2*t_o rows, x3 has 2*t_o+M+t_o = M+3*t_o rows, x4 has 3*t_o+M+2*t_o = M+5*t_o rows, x5 has 4*t_o+M = M + 4*t_o rows.

And then you try to add these items, each of which has a different number of rows (except in the case where t_o is zero). You cannot add when the number of rows or columns or pages is different.