if i have random matrices how to find a specific matrix?

if i have a random 20 binary matrix and matrix A ;

A = [ 1 0 1 1
      0 1 0 0
      1 1 0 1
      1 1 0 1 ]

s =[ 1 0 1 0
     1 1 0 0
     0 1 1 0
     0 0 1 0 ]

 s = [ 1 1 0 1 
        0 1 0 0
        1 1 0 1
        0 1 0 1 ]
 .
 .
 .
 .
 s = [ 1 0 1 0
       0 0 0 1
       1 1 1 0
       1 0 1 1 ]

and after apply some operation i want to find the minimum value and then return the matrix that have the minimum value

this is my code

for k=1:20
  s = randi ([0 1 ] ,4,4);
  S(k)=(sum (sum(A ~= s)));
end
s7=min(S)

how can return the tow matrix have the min value??

[John D'Errico]

You seem to be asking pretty basic questions in programming (over and over again) in a very confused way. That suggests the best solution is for you to spend some time learning programming. Pick up a basic text on MATLAB, and start reading. Do the examples. Try the problems suggested.

Answer 1

[John D'Errico]

Why not just save the current matrix, IF your computation is better than the previous best solution? This requires only an if statement inside the loop, and that you store the current best objective function at any point in time.

Answer 2

[Azzi Abdelmalek]

A = [ 1 0 1 1
    0 1 0 0
    1 1 0 1
    1 1 0 1 ]
for k=1:20
s = randi ([0 1 ] ,4,4);
M{k}=s;
S(k)=(sum (sum(A ~= s)));
end
[s7,idx]=min(S)
out=M{idx}

[Firas Al-Kharabsheh]

 GIVE me error ( Cell contents assignment to a non-cell array object.)
  M{k}=s;

[Azzi Abdelmalek]

A = [ 1 0 1 1
  0 1 0 0
  1 1 0 1
  1 1 0 1 ]
M=cell(1,20);
for k=1:20
s = randi ([0 1 ] ,4,4);
M{k}=s;
S(k)=(sum (sum(A ~= s)));
end
[s7,idx]=min(S)
out=M{idx}

[Firas Al-Kharabsheh]

Error in (Insufficient number of outputs from right hand side of equal sign to satisfy assignment.)

[s7,idx]=min(S);

[Azzi Abdelmalek]

This error is not for the code I posted, can you post the code that gives this error?

[Firas Al-Kharabsheh]

when i copy the code this statement appear

(Insufficient number of outputs from right hand side of equal sign to satisfy assignment.)

[s7,idx]=min(S);

[Walter Roberson]

Firas got impatient for immediate response and opened a new Question on the same topic, http://www.mathworks.com/matlabcentral/answers/279771-how-to-find-min-value-among-20-random-matrices-and-return-the-min-matrix-have-the-min-value