| NIST/ITL StRD |
| Dataset Name: Kirby2 (Kirby2.dat) |
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| File Format: ASCII |
| Starting Values (lines 41 to 45) |
| Certified Values (lines 41 to 50) |
| Data (lines 61 to 211) |
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| Procedure: Nonlinear Least Squares Regression |
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| Description: These data are the result of a NIST study involving |
| scanning electron microscope line with standards. |
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| Reference: Kirby, R., NIST (197?). |
| Scanning electron microscope line width standards. |
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| Data: 1 Response (y) |
| 1 Predictor (x) |
| 151 Observations |
| Average Level of Difficulty |
| Observed Data |
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| Model: Rational Class (quadratic/quadratic) |
| 5 Parameters (b1 to b5) |
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| y = (b1 + b2*x + b3*x**2) / |
| (1 + b4*x + b5*x**2) + e |
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| Starting values Certified Values |
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| Start 1 Start 2 Parameter Standard Deviation |
| b1 = 2 1.5 1.6745063063E+00 8.7989634338E-02 |
| b2 = -0.1 -0.15 -1.3927397867E-01 4.1182041386E-03 |
| b3 = 0.003 0.0025 2.5961181191E-03 4.1856520458E-05 |
| b4 = -0.001 -0.0015 -1.7241811870E-03 5.8931897355E-05 |
| b5 = 0.00001 0.00002 2.1664802578E-05 2.0129761919E-07 |
| |
| Residual Sum of Squares: 3.9050739624E+00 |
| Residual Standard Deviation: 1.6354535131E-01 |
| Degrees of Freedom: 146 |
| Number of Observations: 151 |
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| Data: y x |
| 0.0082E0 9.65E0 |
| 0.0112E0 10.74E0 |
| 0.0149E0 11.81E0 |
| 0.0198E0 12.88E0 |
| 0.0248E0 14.06E0 |
| 0.0324E0 15.28E0 |
| 0.0420E0 16.63E0 |
| 0.0549E0 18.19E0 |
| 0.0719E0 19.88E0 |
| 0.0963E0 21.84E0 |
| 0.1291E0 24.00E0 |
| 0.1710E0 26.25E0 |
| 0.2314E0 28.86E0 |
| 0.3227E0 31.85E0 |
| 0.4809E0 35.79E0 |
| 0.7084E0 40.18E0 |
| 1.0220E0 44.74E0 |
| 1.4580E0 49.53E0 |
| 1.9520E0 53.94E0 |
| 2.5410E0 58.29E0 |
| 3.2230E0 62.63E0 |
| 3.9990E0 67.03E0 |
| 4.8520E0 71.25E0 |
| 5.7320E0 75.22E0 |
| 6.7270E0 79.33E0 |
| 7.8350E0 83.56E0 |
| 9.0250E0 87.75E0 |
| 10.2670E0 91.93E0 |
| 11.5780E0 96.10E0 |
| 12.9440E0 100.28E0 |
| 14.3770E0 104.46E0 |
| 15.8560E0 108.66E0 |
| 17.3310E0 112.71E0 |
| 18.8850E0 116.88E0 |
| 20.5750E0 121.33E0 |
| 22.3200E0 125.79E0 |
| 22.3030E0 125.79E0 |
| 23.4600E0 128.74E0 |
| 24.0600E0 130.27E0 |
| 25.2720E0 133.33E0 |
| 25.8530E0 134.79E0 |
| 27.1100E0 137.93E0 |
| 27.6580E0 139.33E0 |
| 28.9240E0 142.46E0 |
| 29.5110E0 143.90E0 |
| 30.7100E0 146.91E0 |
| 31.3500E0 148.51E0 |
| 32.5200E0 151.41E0 |
| 33.2300E0 153.17E0 |
| 34.3300E0 155.97E0 |
| 35.0600E0 157.76E0 |
| 36.1700E0 160.56E0 |
| 36.8400E0 162.30E0 |
| 38.0100E0 165.21E0 |
| 38.6700E0 166.90E0 |
| 39.8700E0 169.92E0 |
| 40.0300E0 170.32E0 |
| 40.5000E0 171.54E0 |
| 41.3700E0 173.79E0 |
| 41.6700E0 174.57E0 |
| 42.3100E0 176.25E0 |
| 42.7300E0 177.34E0 |
| 43.4600E0 179.19E0 |
| 44.1400E0 181.02E0 |
| 44.5500E0 182.08E0 |
| 45.2200E0 183.88E0 |
| 45.9200E0 185.75E0 |
| 46.3000E0 186.80E0 |
| 47.0000E0 188.63E0 |
| 47.6800E0 190.45E0 |
| 48.0600E0 191.48E0 |
| 48.7400E0 193.35E0 |
| 49.4100E0 195.22E0 |
| 49.7600E0 196.23E0 |
| 50.4300E0 198.05E0 |
| 51.1100E0 199.97E0 |
| 51.5000E0 201.06E0 |
| 52.1200E0 202.83E0 |
| 52.7600E0 204.69E0 |
| 53.1800E0 205.86E0 |
| 53.7800E0 207.58E0 |
| 54.4600E0 209.50E0 |
| 54.8300E0 210.65E0 |
| 55.4000E0 212.33E0 |
| 56.4300E0 215.43E0 |
| 57.0300E0 217.16E0 |
| 58.0000E0 220.21E0 |
| 58.6100E0 221.98E0 |
| 59.5800E0 225.06E0 |
| 60.1100E0 226.79E0 |
| 61.1000E0 229.92E0 |
| 61.6500E0 231.69E0 |
| 62.5900E0 234.77E0 |
| 63.1200E0 236.60E0 |
| 64.0300E0 239.63E0 |
| 64.6200E0 241.50E0 |
| 65.4900E0 244.48E0 |
| 66.0300E0 246.40E0 |
| 66.8900E0 249.35E0 |
| 67.4200E0 251.32E0 |
| 68.2300E0 254.22E0 |
| 68.7700E0 256.24E0 |
| 69.5900E0 259.11E0 |
| 70.1100E0 261.18E0 |
| 70.8600E0 264.02E0 |
| 71.4300E0 266.13E0 |
| 72.1600E0 268.94E0 |
| 72.7000E0 271.09E0 |
| 73.4000E0 273.87E0 |
| 73.9300E0 276.08E0 |
| 74.6000E0 278.83E0 |
| 75.1600E0 281.08E0 |
| 75.8200E0 283.81E0 |
| 76.3400E0 286.11E0 |
| 76.9800E0 288.81E0 |
| 77.4800E0 291.08E0 |
| 78.0800E0 293.75E0 |
| 78.6000E0 295.99E0 |
| 79.1700E0 298.64E0 |
| 79.6200E0 300.84E0 |
| 79.8800E0 302.02E0 |
| 80.1900E0 303.48E0 |
| 80.6600E0 305.65E0 |
| 81.2200E0 308.27E0 |
| 81.6600E0 310.41E0 |
| 82.1600E0 313.01E0 |
| 82.5900E0 315.12E0 |
| 83.1400E0 317.71E0 |
| 83.5000E0 319.79E0 |
| 84.0000E0 322.36E0 |
| 84.4000E0 324.42E0 |
| 84.8900E0 326.98E0 |
| 85.2600E0 329.01E0 |
| 85.7400E0 331.56E0 |
| 86.0700E0 333.56E0 |
| 86.5400E0 336.10E0 |
| 86.8900E0 338.08E0 |
| 87.3200E0 340.60E0 |
| 87.6500E0 342.57E0 |
| 88.1000E0 345.08E0 |
| 88.4300E0 347.02E0 |
| 88.8300E0 349.52E0 |
| 89.1200E0 351.44E0 |
| 89.5400E0 353.93E0 |
| 89.8500E0 355.83E0 |
| 90.2500E0 358.32E0 |
| 90.5500E0 360.20E0 |
| 90.9300E0 362.67E0 |
| 91.2000E0 364.53E0 |
| 91.5500E0 367.00E0 |
| 92.2000E0 371.30E0 |