Error calculation is not working

w1 = 0.4762;
w2 = -0.2152;

for k= 2: size(B)
    B(k)= A(k)*w1+A(k-1)*w2;
end

disp(y);

for j= 2:size(B)
    e(j)= B(j)-(A(j)*w1+A(j-1)*w2);
end

e(e==0)= [];

disp(e)

Ok this is the code, while k loop is running smoothly it doesn't seem so, to obtain any result at j loop for e that holds for error. A and B matrixes are perfectly loaded. What am I doing wrong??

[KSSV]

At the loop don't use size(B) ....either row or column dimensions which ever is required....YOu have not provided A and B....you didn't specify what is the error?

[Floriane Madeleine Schreiber]

maybe you have to use 'length(B)' instead of 'size(B)' !