MATLAB: Corresponding values between two matrices

findmatrixmatrix manipulation

Hello,

I have two matrices of different sizes. Please see attached .mat files containing the matrices. Matrix A = [3168×2] and matrix B = [14×1].

The 14 values contained in the first column of matrix B are contained somewhere in the second column of matrix A. I need to identify which rows in A are these valinues contained and also extract the values contained in the first column for these rows.

Any suggestions?

Thanks in advance.

Best Answer

index=ismember(A(:,2),B(:,1));
A(index,1)

Related Solutions

MATLAB: How to subtract row 1 of matrixA from row 2 of matrixB (matrices are of same size)

Try this:

Out = B(2:end,:) - A(1:end-1,:);

MATLAB: Matrices

Please try the following:

   X = [ 5 171 ; 5 300 ; 5 530 ; 5 700 ];
   M = 173;
   N = 712;
   Y = zeros(M,N);
   idx = M*(X(:,2)-1) + X(:,1) ;
   Y(idx) = 1;
   sum(Y(:))

HTH.

Rick

Best Answer

Related Solutions

MATLAB: How to subtract row 1 of matrixA from row 2 of matrixB (matrices are of same size)

MATLAB: Matrices

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