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NLS Page 		Roszman1
Dataset
Additional Information
Dataset
Name:
Roszman1

Procedure: Nonlinear Least Squares Regression
Certification Method & Definitions

Data: 1 Response Variable (y)
1 Predictor Variable (x)
25 Observations
Average Level of Difficulty
Observed Data
Model: y = f(x;beta) + e = beta(1) - beta(2)x - (arctan[(beta(8) / (x - beta(4))]) pi) + e

These data are the result of a NIST study involving quantum defects in iodine atoms. The response variable is the number of quantum defects, and the predictor variable is the excited energy state. The argument to the ARCTAN function is in radians.