MATLAB: Compare matrix column-wise with vector

Question

Dear all,

I have an mxn matrix and a 1xn vector I want to compare each ith column of the matrix with the ith value of the vector. The result should be an mxn logical matrix to be used

Example:

minVec = [ 0  2  0];
maxVec = [10 10  9];
mat    = [-1  2  5;
           9 15  3];

I would like to calculate the following, but without a for-loop…

mask(:,i) = mat(:,i)<minVec(i) | mat(:,i)>maxVec(i);
mask   = [ 1  0  0;
           0  1  0]

I guess there must be some solution using arrayfun, perhaps?

Any help is greatly appreciated!

Thank you very much, Philip

Answer 1

mask=bsxfun(@lt,mat,minVec)| bsxfun(@gt,mat,maxVec)