Reduction in For Loop Execution Time

Hi, I have a question. I developed a coding for send and receive binary bits. I need to arrange the bits into matrices before I could form back into its original format. For instance, I have 10101010101.... and i need to arrange in (1010;1010;0101...) or (3x1) matrices. Here is the code. for j=1:M b=16*(j); a=-15+b; Video_bin= [Video_bin;file(a:b)]; end will concatenate the bits into matrix form. however this gives a large execution time to my code. Any better function or solution for this?Thanks.

Answer 1

[Oleg Komarov]

Use reshape:

A = '101010101010';
B = reshape(A,4,[]).';