86 lines
2.5 KiB
Plaintext
86 lines
2.5 KiB
Plaintext
NIST/ITL StRD
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Dataset Name: Roszman1 (Roszman1.dat)
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File Format: ASCII
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Starting Values (lines 41 to 44)
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Certified Values (lines 41 to 49)
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Data (lines 61 to 85)
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Procedure: Nonlinear Least Squares Regression
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Description: These data are the result of a NIST study involving
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quantum defects in iodine atoms. The response
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variable is the number of quantum defects, and the
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predictor variable is the excited energy state.
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The argument to the ARCTAN function is in radians.
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Reference: Roszman, L., NIST (19??).
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Quantum Defects for Sulfur I Atom.
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Data: 1 Response (y = quantum defect)
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1 Predictor (x = excited state energy)
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25 Observations
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Average Level of Difficulty
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Observed Data
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Model: Miscellaneous Class
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4 Parameters (b1 to b4)
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pi = 3.141592653589793238462643383279E0
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y = b1 - b2*x - arctan[b3/(x-b4)]/pi + e
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Starting Values Certified Values
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Start 1 Start 2 Parameter Standard Deviation
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b1 = 0.1 0.2 1.20196866396E-0 1.9172666023E-02
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b2 = -0.00001 -0.000005 -6.1953516256E-06 3.2058931691E-06
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b3 = 1000 1200 1.2044556708E+03 7.4050983057E+01
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b4 = -100 -150 -1.8134269537E+02 4.9573513849E+01
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Residual Sum of Squares: 4.9484847331E-04
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Residual Standard Deviation: 4.8542984060E-03
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Degrees of Freedom: 21
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Number of Observations: 25
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Data: y x
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0.252429 -4868.68
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0.252141 -4868.09
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0.251809 -4867.41
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0.297989 -3375.19
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0.296257 -3373.14
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0.295319 -3372.03
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0.339603 -2473.74
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0.337731 -2472.35
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0.333820 -2469.45
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0.389510 -1894.65
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0.386998 -1893.40
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0.438864 -1497.24
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0.434887 -1495.85
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0.427893 -1493.41
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0.471568 -1208.68
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0.461699 -1206.18
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0.461144 -1206.04
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0.513532 -997.92
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0.506641 -996.61
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0.505062 -996.31
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0.535648 -834.94
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0.533726 -834.66
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0.568064 -710.03
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0.612886 -530.16
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0.624169 -464.17
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