dataset = ReactionRate
begin description
The response RR is the reaction rate for the catalytic isomerization of n-pentane to isopentane. The predictors are the  partial pressures of hydrogen, n-pentane and isopentane.  The data are given in Bates and Watts page 271.
end description
begin variables
Col 0 = Hydrogen
Col 1 = n-Pentane
Col 2 = Isopentane
Col 3 = RR
Col 4 = Num = NIL
Col 5 = Den = NIL
Col 6 = Num/Den = NIL
end variables
begin mean functions
th1*th3*(x2-x3/1.632)/(1+th2*x1+th3*x2+th4*x3) = (35.9 .071 .0377 .167)
th1*(x2-x3/1.632)/(th3+th2*x1+x2+th4*x3) = (35.9 2 26 4.5)
th3*(x2-x3/1.632)/(th1+th2*x1+th3*th1*x2+th4*x3) = (.028 0.002 0.0377 0.0048)
(x2-x3/1.632)/(th1+th2*x1+th3*x2+th4*x3) = (.7 .05 .028 .12)
end mean functions
begin data
(
205.8 90.9 37.1 3.541 68.1672 25.1933 2.70577 
404.8 92.9 36.3 2.397 70.6574 39.2243 1.80137 
209.7 174.9 49.4 6.694 144.63 30.6903 4.71258 
401.6 187.2 44.9 4.722 159.688 43.989 3.63017 
224.9 92.7 116.3 0.593 21.4377 39.8398 0.538099 
402.6 102.2 128.9 0.268 23.2172 54.8833 0.423028 
212.7 186.9 134.4 2.797 104.547 45.5501 2.29521 
406.2 192.6 134.9 2.451 109.941 59.5483 1.84624 
133.3 140.8 87.6 3.196 87.1235 30.375 2.86826 
470.9 144.2 86.9 2.021 90.9525 54.2884 1.67536 
300 68.3 81.7 0.896 18.2387 38.4588 0.474241 
301.6 214.4 101.7 5.084 152.084 47.4201 3.20716 
297.3 142.2 10.5 5.686 135.766 29.1633 4.65538 
314 146.7 157.1 1.193 50.4377 54.9975 0.917092 
305.7 142 86 2.648 89.3039 42.359 2.10827 
300.1 143.7 90.2 3.303 88.4304 42.728 2.06961 
305.4 141.1 87.4 3.054 87.5461 42.5376 2.05809 
305.2 141.5 87 3.302 88.1912 42.4717 2.07647 
300.1 83 66.4 1.271 42.3137 36.465 1.16039 
106.6 209.6 33 11.648 189.379 21.9602 8.62376 
417.2 83.9 32.9 2.002 63.7407 39.1951 1.62624 
251 294.4 41.5 9.604 268.971 36.8002 7.30896 
250.3 148 14.7 7.754 138.993 26.7557 5.19487 
145.1 291 50.2 11.59 260.24 30.6272 8.49703 
)