Question

For example I have A=[11 24 33 47 52 67] and I have indices matrix as I = [2 3] so I want to have the elements of A from the indices other than indices given with I. So I want to have B = [11 47 52 67]. How can I do it and use I as a negated indices matrix?

Answer 1

go for

  idx = logical(ones(size(A)));   % // all indices here

or, as @Gunther Struyf suggests,

  idx = true(size(A));

then

  idx(I) = 0;                       % // excluding not desired indices    
  B = A(idx);                       % // selection

Alternatively

 B = A;
 B(I) = [];