Command to pad zeros to specific locations in binary numbers?

Question

I need to pad zeros to specific locations in binary numbers. Looping the array form of a binary number such as dec2bin(43) and adding the zeros and adjusting th

Answer 1

If you are looking for efficiency it can never hurt to try various options. Here is another way to do it:

M = magic(5)>3; % Example matrix
positions = [2 3 6]; % Desired padding columns in resulting matrix

n = size(M,2)+numel(positions);
R = false(size(M,1),n);

R(:,setxor(positions,1:n))=M