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Nonlinear Regression model

  • To: mathgroup at
  • Subject: [mg32303] Nonlinear Regression model
  • From: romoscanu at (Ioan Alexandre Romoscanu)
  • Date: Sat, 12 Jan 2002 05:18:14 -0500 (EST)
  • Sender: owner-wri-mathgroup at


I have a question about the 

NonlinearRegress[Data, Model, Variables,Parameters] 

function in Mathematica. 

The function is supoosed to find parameters, for given Model, which
best fit the submitted data set.

Can the *model* itself be of a *numerical* nature? In other words, can
the model be smth like


It seems that this does not work, although it should(?) if one
supplies the Parameters to NonlinearRegress in the form
{theta1,{thetastart1, thetastart2}}, so that no symbolic derivatives
are looked for.



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