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   y vs. x
Dataset
Name:
Rat42

Procedure: Nonlinear Least Squares Regression
Certification Method & Definitions

Data: 1 Response Variable (y)
1 Predictor Variable (x)
9 Observations
Higher Level of Difficulty
Observed Data
Data file (ASCII Format)
Additional Information

Model: Exponential Class
3 Parameters (beta(1) to beta(3) to beta(1) to beta(3))
Starting Values

y = f(x;beta) + e = (beta(1) / (1 + exp[beta(2) - beta(3)x])

Results: Certified Values
Graphics

Reference: Ratkowsky, D.A. (1983).
Nonlinear Regression Modeling.
New York, NY: Marcel Dekker, pp. 61 and 88.