how to create a matrix from another

How would i create a matrix that is the last column and the 2nd and 4th row of matrix x?

Answer 1

[Ameer Hamza]

M = x(:, [end 2 4])

This is pretty basic stuff in MATLAB and you have other similar questions too. I ssuggest you to read about array indexing: https://www.mathworks.com/help/matlab/math/array-indexing.html.

Answer 2

[Bruno Luong]

x([2 4], end)