MATLAB: Hi , i have a matrix and need to extract the column in this way , thank you

Question

clear all

clc

A=[ 1:16;17:32;33:48;49:64] ;

% i need to exctract the [ 1 5 9 13 ] column vectro from matrix A and put them in another matrix B with diminsion 4×4

% the rest of the column i need them in another matrix C with dimensione 4×12

% thank you

Answer 1

idx= [ 1 5 9 13 ];
A(:,idx) % 4 X 4
A(:,setdiff(1:size(A,2),idx)) % 4 X 12