Create an $1$D array called y$6$ of size $1\backslash$times $12$ which contains numbers of your choice $($not random but entered

manually by yourself$).$ Write one line of code to replace the values in the array at even indices with those at the

odd indices $($e$.$g$.,$ y $(2)$ should be replaced by y $(1),$ y $(4)$ by y $(3),$ etc.$).$

In MATLAB