A=[1,3,5;9,8,7;10,15,20] use A and matrix addressing to create a 2x3 matrix consisting of the first two elements of the first column, the last two elements of the 2nd column, and the first two elements of the last row.

help please

[Alexandra Topciov]

 X=[A(1:2,1), A(2:3,2), A(1:2,3)]

Answer 1

[Andrei Bobrov]

A = randi(125,30,3);% Let A - your data.

b = A';
k = 3:6:numel(A);
b([k,k+1]) = nan;
out = reshape(b(~isnan(b)),2,[])';