How do I use multiple variables in a for loop, that rely on each other?

I am trying to create a Meggitt Decoder. The part I need help with is at the end when I need to calculate the syndrome. Parts of the syndrome relys on each other and I do not know how to make it work.

clear variables; clc;
n = 7;
k = 4;
fprintf ('Hamming code (%u, %u)\n\n', n, k);
Message = [1 0 1 1];
fprintf ('Message Polynomial = ')
gfpretty(Message)
Generator = [1 1 0 1];
fprintf ('Generator Polynomial = ')
gfpretty(Generator)

% Creating the Codeword 
Codeword = encode(Message,n,k);
fprintf ('Codeword = ');
gfpretty(Codeword)

% Finding the Syndrome 
value = 0:(n-1);
Error = zeros(size(value));
sn = 0;
for l = value
    sn = 2;
    Error(sn) = 1;
end    
fprintf('Error = ')
gfpretty(Error)

[Quotient,Remainder] = gfdeconv(Error,Generator);
fprintf ('Syndrome = ')
gfpretty(Remainder)

% Meggitt Decoder 
  
Recieved = bitxor(Codeword,Error);
fprintf('Recieved Codeword = ')
gfpretty(Recieved)

%Part I need help working 
S2 = zeros(size(0:n-1));
S1 = zeros(size(0:n-1));
S0 = zeros(size(0:n-1));
for i = 0:n-1
    count = i + 1;
    Buffer = Recieved(count);
    S2 = S1(count);
    S1 = bitxor(S0(count),S2(count));
    S0 = bitxor(S2(count),Buffer);
end

[Rishik Ramena]

Can you provide more details regarding the variables you need help regarding?

[Jan]

"I do not know how to make it work" - this sound like something is not working as you expect it. Then mention, what it is. The readers cannot guess this detail.

Answer 1

[Jan]

This looks strange:

S2 = zeros(size(0:n-1));

It is working, but you do know the size of a 0:n-1 vector already, don't you?

S2 = zeros(1, n);

In the folloing loop you overwrite the values of S0, S1, and S2 by a scalar in each iteration. I guess, you want something else, but withouit meaningful and exhaustive comments I'm do not know the purpose of the code.

Why do you run a loop from 0 to n-1 if you access i+1 only? It is simpler to run the loop from 1 to n:

for i = 1:n
    Buffer = Recieved(i);
    % Then what do you want to happen here?
end