Using ismember to seek out pairs

Currently messing with some code which I can't quite get to do what I want.

I have A = [1 2 5; 4 5 7; 7 8 9; 4 7 10; 6 7 2] and B = [2 3; 4 9; 7 9; 7 6]

I want b to be compared with a and using ismember and indicate all the rows that both values in each row in b exist.

So here the answer would be

ans = [0; 0; 1; 0; 1]

The 3rd and 5th rows in A contain a whole row in B so a 1 is returned.

At the moment I am trying, ismember(A,B) but this returns

ans =

     0     1     0
     1     0     1
     1     0     1
     1     1     0
     1     1     1

as ismember simply return a 1 when any value of B is found in A. Any idea how to use ismember (or otherwise) to do what I am needing?

Thanks

Answer 1

[Azzi Abdelmalek]

   A = [1 2 5; 4 5 7; 7 8 9; 4 7 10; 6 7 2]
B = [2 3; 4 9; 7 9; 7 6]
for k=1:size(A,1)
    out(k)=any(all(ismember(B,A(k,:)),2));
end
out

%or

 out=arrayfun(@(x) any(all(ismember(B,A(x,:)),2)),1:size(A,1))

[Craig]

If I have a cell X (1 by 10) where A=X{1} how could I edit your code to loop through each double in the cell and return a cell of all the returns?

[Azzi Abdelmalek]

This is not clear

[Craig]

So I want to use your code to perform this several times.

If I have a cell X that contains several arrays (lets say the first is A). How would I adapt your code into a loop to run through one array after another?

[Azzi Abdelmalek]

Do you mean

y={[1 2 5; 4 5 7; 4 7 10; 6 7 2;44 1 7],[1 2 5; 4 5 7; 7 8 9; 4 7 10; 6 7 2]}
B = [2 3; 4 9; 7 9; 7 6;44 7;11 12;1 2]
for k=1:numel(y)
  A=y{k}
  out{k}=arrayfun(@(x) any(all(ismember(B,A(x,:)),2)),1:size(A,1));
end
celldisp(out)

[Craig]

Perfect thanks alot!

Answer 2

[Andrei Bobrov]

w = bsxfun(@eq,reshape(A',[],1),reshape(B',1,[]));
out = any(blockproc(w,[3 2],@(x)sum(x.data(:)))==2,2);

or

w = bsxfun(@eq,reshape(A',[],1),reshape(B',1,[]));
z = conv2(w + 0,ones(3,2));
out = any(z(3:3:end,2:2:end)==2,2);