options ls=76 ps=55;
data pc;
 input x1 x2;
datalines;
16 8
12 10
13 6
11 2
10 8
9 -1
8  4
7 6
5 -3
3 -1
2 -3
1 1
title 'Principal Components Example';
proc princomp cov out=new;
 var x1 x2;
proc print;
 var x1 x2 prin1 prin2;
endsas;