splitting data w.r.t. sampling interval

x=1:1:20;

I need to split x array w.r.t 5 sampling interval as follows;

x_5_1=[1 2 3 4 5];
x_5_2=[6 7 8 9 10];
x_5_3=[11 12 13 14 15];
x_5_4=[16 17 18 19 20];

How can I define these sub arrays w.r.t. sampling interval with codes?

Answer 1

[KSSV]

x = 1:20 ;
x = reshape(x,5,[])' ;