FRAC 6.1: Construct fractional factorial designs (c) 2009 Design Computing (designcomputing.net/) Note: Best design for m=11, p=67, and n=64. try # 1 seed 1228900622046 # of iterations 14 f 73728.0 (0) clear 2fi's 27 Factor levels: -1 -1 -1 -1 -1 -1 1 -1 -1 1 -1 1 -1 -1 -1 -1 -1 -1 1 -1 -1 1 -1 1 -1 -1 -1 -1 -1 -1 1 -1 1 1 1 -1 -1 -1 -1 1 -1 -1 1 -1 -1 -1 1 -1 -1 -1 -1 1 -1 -1 1 1 -1 1 -1 -1 -1 1 1 1 1 -1 -1 1 1 -1 -1 -1 1 1 1 1 -1 1 1 1 -1 -1 -1 -1 -1 1 -1 1 -1 -1 -1 1 -1 -1 1 1 1 1 1 1 -1 -1 1 -1 -1 -1 -1 1 -1 -1 -1 1 -1 1 -1 -1 -1 1 -1 -1 -1 1 1 -1 1 -1 -1 1 1 1 1 1 -1 -1 1 1 -1 -1 -1 -1 1 -1 -1 1 -1 1 1 -1 -1 1 -1 -1 1 1 -1 1 1 1 -1 -1 1 -1 -1 1 1 1 1 1 1 -1 -1 -1 1 -1 -1 -1 -1 -1 -1 -1 1 -1 1 1 1 -1 -1 1 -1 -1 -1 1 -1 -1 -1 1 1 1 -1 1 -1 -1 1 -1 -1 1 -1 1 1 1 1 -1 -1 1 -1 1 1 1 -1 -1 -1 -1 1 -1 1 -1 -1 -1 1 1 1 1 -1 1 -1 1 -1 1 -1 -1 -1 -1 -1 1 1 -1 1 -1 1 -1 -1 -1 -1 1 1 1 -1 1 -1 -1 1 -1 1 1 -1 -1 -1 1 1 -1 1 -1 -1 -1 1 1 -1 -1 1 1 -1 -1 1 -1 1 -1 -1 1 -1 1 1 -1 -1 -1 1 1 -1 1 1 -1 1 1 -1 1 -1 -1 -1 1 -1 -1 1 1 1 -1 -1 1 -1 1 -1 1 -1 1 1 1 -1 1 1 1 -1 1 -1 1 1 1 1 -1 1 1 1 -1 1 1 1 1 1 1 -1 -1 -1 1 1 -1 -1 -1 -1 -1 -1 1 -1 1 1 1 -1 1 -1 -1 -1 -1 1 1 -1 1 -1 1 -1 1 -1 -1 -1 1 1 1 -1 -1 1 1 1 -1 -1 -1 1 -1 1 1 1 -1 -1 -1 1 -1 -1 1 1 -1 1 -1 1 1 -1 1 -1 -1 1 -1 -1 -1 1 -1 -1 1 1 -1 -1 1 -1 -1 -1 1 -1 1 1 1 -1 -1 1 1 1 -1 -1 1 -1 -1 -1 1 -1 1 -1 -1 -1 1 1 1 -1 -1 1 -1 1 1 1 -1 -1 -1 -1 1 -1 1 -1 1 1 -1 1 -1 -1 1 1 -1 1 -1 1 -1 -1 -1 1 1 -1 -1 1 1 -1 1 1 1 -1 -1 -1 1 -1 1 1 -1 1 -1 1 1 1 1 -1 1 1 1 -1 1 -1 1 1 1 1 1 1 1 1 -1 1 1 -1 1 -1 -1 -1 -1 -1 -1 1 1 -1 -1 -1 -1 -1 1 -1 -1 -1 1 1 1 1 -1 1 1 -1 1 -1 -1 1 1 1 -1 1 1 1 1 1 -1 -1 1 1 -1 -1 -1 -1 -1 -1 -1 1 -1 1 1 1 1 -1 1 1 1 -1 1 -1 1 1 -1 1 1 -1 -1 -1 1 1 -1 1 1 -1 1 1 -1 -1 1 1 1 -1 1 1 1 -1 1 1 1 -1 -1 -1 1 1 1 -1 1 1 -1 1 1 -1 -1 1 1 1 1 -1 1 1 -1 -1 1 -1 1 1 1 1 1 -1 1 -1 1 1 -1 1 1 1 -1 1 1 -1 1 -1 -1 1 1 1 1 1 -1 1 1 -1 1 -1 1 1 1 1 -1 -1 -1 -1 1 -1 1 1 1 1 1 -1 -1 -1 -1 1 1 1 1 1 1 1 1 1 -1 1 -1 X'X 64 0 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0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 64 0 0 0 64 0 0 0 0 0 0 -64 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 64 0 0 0 0 -64 0 -64 0 0 0 0 0 0 0 0 64 0 0 0 0 0 64 0 0 0 0 0 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -64 0 0 64 0 0 0 0 0 0 0 0 0 0 0 0 -64 0 0 0 0 64 0 64 0 0 0 0 0 0 0 0 -64 0 0 0 0 0 64 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 0 -64 0 0 0 0 0 64 0 0 0 0 -64 0 0 0 0 0 0 0 0 64 0 0 -64 0 0 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 0 64 0 0 0 0 0 0 0 64 0 0 0 0 0 0 64 0 0 0 0 0 64 0 0 0 0 64 0 0 0 64 0 0 64 0 64 Note: Clear 2fi's: 12 13 14 15 16 17 18 19 1a 1b 23 24 25 26 27 28 29 2a 2b 34 35 36 37 38 39 3a 3b. Note: The first 10 columns of the design form the base design. Note: FRAC used 0.875 seconds.