How to "partner" 2 matrixes

The matrix X is randomly shuffled, how does Y follow up that shuffle?

i.e:

X=[4 7 1 9;
   3 0 6 8] 
Y=[32 6 4 21;
   77 89 0 2]

after the shuffle:

X=[3 9 4 6;
   1 7 8 0]         
Y=[77 21 32 0;
   4  6  2  89]

Answer 1

[Guillaume]

X = [4 7 1 9;
     3 0 6 8] 
Y = [32 6 4 21;
     77 89 0 2]
newX = [3 9 4 6;
        1 7 8 0]

[found, where] = ismember(newX, X);
assert(all(found(:)), 'some elements of newX are not present in X')
newY = Y(where)

[Hugo Matias]

Thank you sir

[Hugo Matias]

Hi, how do I do the same thing but instead of that this:

(imagine "a" as a number)

How do I do this?

X=[4 7 1 0;
   3 0 6 8] 
Y=[32 6 4 21;
   77 89 0 2]
X(X==0)=a;

after the alteration:

X=[4 7 1 a;
   3 a 6 8]    
Y=[ 32 6 4 a;
   77  a  0  2];

[Guillaume]

Keep the list of elements you're going to replace (i.e. the logical array X == 0) so that you can use for Y as well:

X=[4 7 1 0;
   3 0 6 8] 
Y=[32 6 4 21;
   77 89 0 2]

toreplace = X == 0;
X(toreplace) = a;
Y(toreplace) = a;

Answer 2

[madhan ravi]

X=[4 7 1 9;
   3 0 6 8] 
idx=randsample(1:numel(X),numel(X));
shuffled_X=reshape(X(idx),size(X,1),[])
Y=[32 6 4 21;
  77 89 0 2]
shuffled_Y=reshape(Y(idx),size(Y,1),[])

command window:

>> COMMUNITY
X =
     4     7     1     9
     3     0     6     8
shuffled_X =
     1     0     3     7
     8     9     4     6
Y =
    32     6     4    21
    77    89     0     2
shuffled_Y =
     4    89    77     6
     2    21    32     0
>> 

[Hugo Matias]

I didn't mean shuffled like that, sorry!

I mean I change the numbers positions of the matrix X

and matrix Y will replicate the movements