| Author |
Comment/Response |
Meaghan
|
 06/04/08 11:41am
I'm having problems with Nonlinearregress in Mathematica 6.0.
Needs["NonlinearRegression`"]
NonlinearRegress[part1, a2*(Exp[b2*x] - 1) + c2*x, startpoints, x,
AccuracyGoal -> 5, PrecisionGoal -> 5, MaxIterations -> 500,
RegressionReport -> BestFitParameters
I get these error messages:
FindFit::nrlnum: The function value {0.+(-1.+2.71828^(0. b2)) a2+0. \
c2,0.104632+(-1.+2.71828^(0.195816 b2)) a2+0.195816 c2,<<8>>,<<92>>} \
is not a list of real numbers with dimensions {102} at {a,b,c} = \
{0.0369002,0.32,0.158379}.
NonlinearRegress::fitfail: The fitting algorithm failed.
...and then it returns the Nonlinearregress[].
I need access to the BestFitParameters next.
Any ideas?
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