| NIST/ITL StRD | |
| Dataset Name: Chwirut1 (Chwirut1.dat) | |
| File Format: ASCII | |
| Starting Values (lines 41 to 43) | |
| Certified Values (lines 41 to 48) | |
| Data (lines 61 to 274) | |
| Procedure: Nonlinear Least Squares Regression | |
| Description: These data are the result of a NIST study involving | |
| ultrasonic calibration. The response variable is | |
| ultrasonic response, and the predictor variable is | |
| metal distance. | |
| Reference: Chwirut, D., NIST (197?). | |
| Ultrasonic Reference Block Study. | |
| Data: 1 Response Variable (y = ultrasonic response) | |
| 1 Predictor Variable (x = metal distance) | |
| 214 Observations | |
| Lower Level of Difficulty | |
| Observed Data | |
| Model: Exponential Class | |
| 3 Parameters (b1 to b3) | |
| y = exp[-b1*x]/(b2+b3*x) + e | |
| Starting values Certified Values | |
| Start 1 Start 2 Parameter Standard Deviation | |
| b1 = 0.1 0.15 1.9027818370E-01 2.1938557035E-02 | |
| b2 = 0.01 0.008 6.1314004477E-03 3.4500025051E-04 | |
| b3 = 0.02 0.010 1.0530908399E-02 7.9281847748E-04 | |
| Residual Sum of Squares: 2.3844771393E+03 | |
| Residual Standard Deviation: 3.3616721320E+00 | |
| Degrees of Freedom: 211 | |
| Number of Observations: 214 | |
| Data: y x | |
| 92.9000E0 0.5000E0 | |
| 78.7000E0 0.6250E0 | |
| 64.2000E0 0.7500E0 | |
| 64.9000E0 0.8750E0 | |
| 57.1000E0 1.0000E0 | |
| 43.3000E0 1.2500E0 | |
| 31.1000E0 1.7500E0 | |
| 23.6000E0 2.2500E0 | |
| 31.0500E0 1.7500E0 | |
| 23.7750E0 2.2500E0 | |
| 17.7375E0 2.7500E0 | |
| 13.8000E0 3.2500E0 | |
| 11.5875E0 3.7500E0 | |
| 9.4125E0 4.2500E0 | |
| 7.7250E0 4.7500E0 | |
| 7.3500E0 5.2500E0 | |
| 8.0250E0 5.7500E0 | |
| 90.6000E0 0.5000E0 | |
| 76.9000E0 0.6250E0 | |
| 71.6000E0 0.7500E0 | |
| 63.6000E0 0.8750E0 | |
| 54.0000E0 1.0000E0 | |
| 39.2000E0 1.2500E0 | |
| 29.3000E0 1.7500E0 | |
| 21.4000E0 2.2500E0 | |
| 29.1750E0 1.7500E0 | |
| 22.1250E0 2.2500E0 | |
| 17.5125E0 2.7500E0 | |
| 14.2500E0 3.2500E0 | |
| 9.4500E0 3.7500E0 | |
| 9.1500E0 4.2500E0 | |
| 7.9125E0 4.7500E0 | |
| 8.4750E0 5.2500E0 | |
| 6.1125E0 5.7500E0 | |
| 80.0000E0 0.5000E0 | |
| 79.0000E0 0.6250E0 | |
| 63.8000E0 0.7500E0 | |
| 57.2000E0 0.8750E0 | |
| 53.2000E0 1.0000E0 | |
| 42.5000E0 1.2500E0 | |
| 26.8000E0 1.7500E0 | |
| 20.4000E0 2.2500E0 | |
| 26.8500E0 1.7500E0 | |
| 21.0000E0 2.2500E0 | |
| 16.4625E0 2.7500E0 | |
| 12.5250E0 3.2500E0 | |
| 10.5375E0 3.7500E0 | |
| 8.5875E0 4.2500E0 | |
| 7.1250E0 4.7500E0 | |
| 6.1125E0 5.2500E0 | |
| 5.9625E0 5.7500E0 | |
| 74.1000E0 0.5000E0 | |
| 67.3000E0 0.6250E0 | |
| 60.8000E0 0.7500E0 | |
| 55.5000E0 0.8750E0 | |
| 50.3000E0 1.0000E0 | |
| 41.0000E0 1.2500E0 | |
| 29.4000E0 1.7500E0 | |
| 20.4000E0 2.2500E0 | |
| 29.3625E0 1.7500E0 | |
| 21.1500E0 2.2500E0 | |
| 16.7625E0 2.7500E0 | |
| 13.2000E0 3.2500E0 | |
| 10.8750E0 3.7500E0 | |
| 8.1750E0 4.2500E0 | |
| 7.3500E0 4.7500E0 | |
| 5.9625E0 5.2500E0 | |
| 5.6250E0 5.7500E0 | |
| 81.5000E0 .5000E0 | |
| 62.4000E0 .7500E0 | |
| 32.5000E0 1.5000E0 | |
| 12.4100E0 3.0000E0 | |
| 13.1200E0 3.0000E0 | |
| 15.5600E0 3.0000E0 | |
| 5.6300E0 6.0000E0 | |
| 78.0000E0 .5000E0 | |
| 59.9000E0 .7500E0 | |
| 33.2000E0 1.5000E0 | |
| 13.8400E0 3.0000E0 | |
| 12.7500E0 3.0000E0 | |
| 14.6200E0 3.0000E0 | |
| 3.9400E0 6.0000E0 | |
| 76.8000E0 .5000E0 | |
| 61.0000E0 .7500E0 | |
| 32.9000E0 1.5000E0 | |
| 13.8700E0 3.0000E0 | |
| 11.8100E0 3.0000E0 | |
| 13.3100E0 3.0000E0 | |
| 5.4400E0 6.0000E0 | |
| 78.0000E0 .5000E0 | |
| 63.5000E0 .7500E0 | |
| 33.8000E0 1.5000E0 | |
| 12.5600E0 3.0000E0 | |
| 5.6300E0 6.0000E0 | |
| 12.7500E0 3.0000E0 | |
| 13.1200E0 3.0000E0 | |
| 5.4400E0 6.0000E0 | |
| 76.8000E0 .5000E0 | |
| 60.0000E0 .7500E0 | |
| 47.8000E0 1.0000E0 | |
| 32.0000E0 1.5000E0 | |
| 22.2000E0 2.0000E0 | |
| 22.5700E0 2.0000E0 | |
| 18.8200E0 2.5000E0 | |
| 13.9500E0 3.0000E0 | |
| 11.2500E0 4.0000E0 | |
| 9.0000E0 5.0000E0 | |
| 6.6700E0 6.0000E0 | |
| 75.8000E0 .5000E0 | |
| 62.0000E0 .7500E0 | |
| 48.8000E0 1.0000E0 | |
| 35.2000E0 1.5000E0 | |
| 20.0000E0 2.0000E0 | |
| 20.3200E0 2.0000E0 | |
| 19.3100E0 2.5000E0 | |
| 12.7500E0 3.0000E0 | |
| 10.4200E0 4.0000E0 | |
| 7.3100E0 5.0000E0 | |
| 7.4200E0 6.0000E0 | |
| 70.5000E0 .5000E0 | |
| 59.5000E0 .7500E0 | |
| 48.5000E0 1.0000E0 | |
| 35.8000E0 1.5000E0 | |
| 21.0000E0 2.0000E0 | |
| 21.6700E0 2.0000E0 | |
| 21.0000E0 2.5000E0 | |
| 15.6400E0 3.0000E0 | |
| 8.1700E0 4.0000E0 | |
| 8.5500E0 5.0000E0 | |
| 10.1200E0 6.0000E0 | |
| 78.0000E0 .5000E0 | |
| 66.0000E0 .6250E0 | |
| 62.0000E0 .7500E0 | |
| 58.0000E0 .8750E0 | |
| 47.7000E0 1.0000E0 | |
| 37.8000E0 1.2500E0 | |
| 20.2000E0 2.2500E0 | |
| 21.0700E0 2.2500E0 | |
| 13.8700E0 2.7500E0 | |
| 9.6700E0 3.2500E0 | |
| 7.7600E0 3.7500E0 | |
| 5.4400E0 4.2500E0 | |
| 4.8700E0 4.7500E0 | |
| 4.0100E0 5.2500E0 | |
| 3.7500E0 5.7500E0 | |
| 24.1900E0 3.0000E0 | |
| 25.7600E0 3.0000E0 | |
| 18.0700E0 3.0000E0 | |
| 11.8100E0 3.0000E0 | |
| 12.0700E0 3.0000E0 | |
| 16.1200E0 3.0000E0 | |
| 70.8000E0 .5000E0 | |
| 54.7000E0 .7500E0 | |
| 48.0000E0 1.0000E0 | |
| 39.8000E0 1.5000E0 | |
| 29.8000E0 2.0000E0 | |
| 23.7000E0 2.5000E0 | |
| 29.6200E0 2.0000E0 | |
| 23.8100E0 2.5000E0 | |
| 17.7000E0 3.0000E0 | |
| 11.5500E0 4.0000E0 | |
| 12.0700E0 5.0000E0 | |
| 8.7400E0 6.0000E0 | |
| 80.7000E0 .5000E0 | |
| 61.3000E0 .7500E0 | |
| 47.5000E0 1.0000E0 | |
| 29.0000E0 1.5000E0 | |
| 24.0000E0 2.0000E0 | |
| 17.7000E0 2.5000E0 | |
| 24.5600E0 2.0000E0 | |
| 18.6700E0 2.5000E0 | |
| 16.2400E0 3.0000E0 | |
| 8.7400E0 4.0000E0 | |
| 7.8700E0 5.0000E0 | |
| 8.5100E0 6.0000E0 | |
| 66.7000E0 .5000E0 | |
| 59.2000E0 .7500E0 | |
| 40.8000E0 1.0000E0 | |
| 30.7000E0 1.5000E0 | |
| 25.7000E0 2.0000E0 | |
| 16.3000E0 2.5000E0 | |
| 25.9900E0 2.0000E0 | |
| 16.9500E0 2.5000E0 | |
| 13.3500E0 3.0000E0 | |
| 8.6200E0 4.0000E0 | |
| 7.2000E0 5.0000E0 | |
| 6.6400E0 6.0000E0 | |
| 13.6900E0 3.0000E0 | |
| 81.0000E0 .5000E0 | |
| 64.5000E0 .7500E0 | |
| 35.5000E0 1.5000E0 | |
| 13.3100E0 3.0000E0 | |
| 4.8700E0 6.0000E0 | |
| 12.9400E0 3.0000E0 | |
| 5.0600E0 6.0000E0 | |
| 15.1900E0 3.0000E0 | |
| 14.6200E0 3.0000E0 | |
| 15.6400E0 3.0000E0 | |
| 25.5000E0 1.7500E0 | |
| 25.9500E0 1.7500E0 | |
| 81.7000E0 .5000E0 | |
| 61.6000E0 .7500E0 | |
| 29.8000E0 1.7500E0 | |
| 29.8100E0 1.7500E0 | |
| 17.1700E0 2.7500E0 | |
| 10.3900E0 3.7500E0 | |
| 28.4000E0 1.7500E0 | |
| 28.6900E0 1.7500E0 | |
| 81.3000E0 .5000E0 | |
| 60.9000E0 .7500E0 | |
| 16.6500E0 2.7500E0 | |
| 10.0500E0 3.7500E0 | |
| 28.9000E0 1.7500E0 | |
| 28.9500E0 1.7500E0 |