Judd et al. "Data analysis", Exhibit 8.6, Exhibit 8.7 Set A / 2 Y L1 L2 / 2 -2 0 2 -2 0 2 -2 0 3 -2 0 4 -2 0 4 -2 0 3 -2 0 4 -2 0 4 1 -1 3 1 -1 4 1 -1 5 1 -1 5 1 -1 2 1 -1 4 1 -1 3 1 -1 4 1 1 6 1 1 5 1 1 4 1 1 6 1 1 4 1 1 3 1 1 3 1 1 / / 1 1 0 0 / 1 1 0 1 / 1 1 1 0 / -1