Main
NLS Page 		Ratkowsky2
Dataset
Starting Values

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


               Starting Values     

Parameter		      Start 1      Start 2      Start 3
     beta(1) 1.0000000000E+02 7.5000000000E+01 7.2462237576E+01
     beta(2) 1.0000000000E+00 2.5000000000E+00 2.6180768402E+00
     beta(3) 1.0000000000E-01 7.0000000000E-02 6.7359200066E-02