How to find unique matrix from given array and corresponding indexes?

I have

A

A(:,:,1) =

Columns 1 through 2

20 20.05

20.05 20

19.95 20

Column 3

19.95

19.95

20.05

A(:,:,2) =

Columns 1 through 2

20 20.05

20.05 20

19.95 20

Column 3

19.95

19.95

20.05

A(:,:,3) =

Columns 1 through 2

20.05 20

20.05 20

19.95 20

Column 3

19.95

19.95

20.05

>> unique(A)

ans =

19.95

20

20.05

But i need to find out unique matrices and corresponding indexes

B

B(:,:,1) =

  Columns 1 through 2

                        20                     20.05
                     20.05                        20
                     19.95                        20

  Column 3

                     19.95
                     19.95
                     20.05


B(:,:,2) =

  Columns 1 through 2

                     20.05                        20
                     20.05                        20
                     19.95                        20

  Column 3

                     19.95
                     19.95
                     20.05

>> index = [1,3]

index =

     1     3
     
     In this format B and index.

Answer 1

[Chunru]

A(:,:,1) = [            20                     20.05                     19.95
                     20.05                        20                     19.95
                     19.95                        20                     20.05];
A(:,:,2) = [            20                     20.05                     19.95
                     20.05                        20                     19.95
                     19.95                        20                     20.05];
A(:,:,3) = [         20.05                        20                     19.95
                     20.05                        20                     19.95
                     19.95                        20                     20.05];
% Reshape the matrix and find unique along each row
[uA, iA] = unique(reshape(A,  [], size(A,3))', 'rows');
B = reshape(uA', size(A,1), size(A,2), [])

B = 
B(:,:,1) =

   20.0000   20.0500   19.9500
   20.0500   20.0000   19.9500
   19.9500   20.0000   20.0500


B(:,:,2) =

   20.0500   20.0000   19.9500
   20.0500   20.0000   19.9500
   19.9500   20.0000   20.0500

iA'

ans = 1×2

1 3

[Triveni]

Thanks for your answer. It is also working for m*n*i size means A(m,n,1:i)) array.