RAT 6.1: Robust Against Trends Program
(c) 2009 Design Computing (designcomputing.net/)

Note: Best design for m=5, p=8 and n=12.

try #     	1
seed      	1230957487000
# of iterations	6
f         	2.56
det       	5.3312524E7
std. det  	0.12398789
TF        	0.9917

Factor levels (columns 3-7):

-1	1	1	1	-1	1	-1	
-0.8182	0.4545	-1	-1	1	1	1	
-0.6364	0.0182	-1	1	1	-1	1	
-0.4545	-0.3091	1	-1	1	-1	-1	
-0.2727	-0.5273	1	-1	-1	-1	1	
-0.0909	-0.6364	-1	1	-1	-1	-1	
0.0909	-0.6364	-1	-1	-1	1	1	
0.2727	-0.5273	-1	1	1	1	-1	
0.4545	-0.3091	1	-1	1	1	-1	
0.6364	0.0182	1	1	-1	1	1	
0.8182	0.4545	1	1	1	-1	1	
1	1	-1	-1	-1	-1	-1	

X'X

4.7273	-0	0	0.3636	0	-0.7273	-0.7273	-0.3636	
	3.9709	-0	0.6545	0.6545	-0.4364	-0	-0.4364	
		12	0	0	0	0	0	
			12	0	0	0	0	
				12	0	0	0	
					12	0	0	
						12	0	
							12	

inverse(X'X)

0.2166	0.0033	-0	-0.0067	-0.0002	0.0133	0.0131	0.0067	
	0.2586	0	-0.0142	-0.0141	0.0096	0.0002	0.0095	
		0.0833	-0	-0	0	-0	0	
			0.0843	0.0008	-0.0009	-0.0004	-0.0007	
				0.0841	-0.0005	-0	-0.0005	
					0.0845	0.0008	0.0008	
						0.0841	0.0004	
							0.0839	

Note: RAT used 0.016 seconds.