/* chemical process data from D.W. Bacon & D.G. Watts (1971), Estimating the transition between two intersecting straight lines, Biometrika 58, 525-534. x - flow y - thickness of stagnant layer */ <1> x y 0.11 0.44 -0.8 0.9 0.01 0.51 -0.25 0.65 -0.25 0.67 -0.12 0.6 -0.12 0.59 -0.94 0.92 0.11 0.43 0.11 0.43 -0.63 0.81 -0.63 0.83 -1.39 1.12 -1.39 1.12 0.7 -0.13 0.7 -0.14 0.34 0.25 1.19 -0.65 0.59 -0.01 0.85 -0.3 0.85 -0.33 0.99 -0.46 0.99 -0.43 0.25 0.33 -1.08 0.99 -1.08 1.03 0.44 0.13 0.34 0.24 0.25 0.3