curvature versus slope n = 113030952 X=0, Y = 8.77 +/- 7.33 Weighted least-squares fit: Y = 13.2 + 4.417 X + -0.05000 X**2 slope versus dZ, curvature < 5 n = 60784532 X=0, Y = 8.17 +/- 7.26 Weighted least-squares fit: Y = 9.5 + 0.416 X + 0.00027 X**2 at X = 100, Y = 53.8 effective RMSE xy = 83.2 slope versus dZ, curvature < 15 n = 85882920 X=0, Y = 8.50 +/- 7.42 Weighted least-squares fit: Y = 9.8 + 0.479 X + -0.00020 X**2 curvature versus dZ, slope < 10 n = 68842333 X=0, Y = 10.61 +/- 7.79 Weighted least-squares fit: Y = 9.7 + 2.398 X + -0.00487 X**2 Number of samples 115043252 Max dz = 900 Mean dz = 20 RMS dz = 44.7325384927 100cm = 96.6841705761 percentile value of dz Mean dz (curv<=5) = 9 RMS dz (curv<=5) = 14.1421356237