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Linear model Poly55:
     f(x,y) = p00 + p10*x + p01*y + p20*x^2 + p11*x*y + p02*y^2 + p30*x^3 + p21*x^2*y
                    + p12*x*y^2 + p03*y^3 + p40*x^4 + p31*x^3*y + p22*x^2*y^2
                    + p13*x*y^3 + p04*y^4 + p50*x^5 + p41*x^4*y + p32*x^3*y^2
                    + p23*x^2*y^3 + p14*x*y^4 + p05*y^5
Coefficients (with 95% confidence bounds):
       p00 =      0.0226  (-0.06975, 0.115)
       p10 =      0.2718  (0.06219, 0.4814)
       p01 =     -0.6836  (-3.116, 1.748)
       p20 =       9.223  (8.684, 9.762)
       p11 =      -6.219  (-10.63, -1.808)
       p02 =       8.048  (-17.54, 33.64)
       p30 =      -7.992  (-9.399, -6.586)
       p21 =      -154.4  (-162.9, -146)
       p12 =       53.07  (18.3, 87.84)
       p03 =      -46.51  (-181, 87.95)
       p40 =      -264.8  (-268.5, -261)
       p31 =       92.77  (78.05, 107.5)
       p22 =       845.7  (801.2, 890.2)
       p13 =      -199.8  (-321.4, -78.15)
       p04 =       132.5  (-220.4, 485.3)
       p50 =       16.18  (5.436, 26.93)
       p41 =        1226  (1207, 1246)
       p32 =      -260.5  (-298.9, -222.1)
       p23 =       -1520  (-1598, -1442)
       p14 =       279.7  (120.4, 438.9)
       p05 =      -149.1  (-519, 220.9)

Goodness of fit:
  SSE: 4.894e-09
  R-square: 0.9992
  Adjusted R-square: 0.9992
  RMSE: 1.347e-06
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