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Re: Nonlinear Least Squares lsqnonlin

  • To: mathgroup at smc.vnet.net
  • Subject: [mg110252] Re: Nonlinear Least Squares lsqnonlin
  • From: Bill Rowe <readnews at sbcglobal.net>
  • Date: Thu, 10 Jun 2010 08:09:10 -0400 (EDT)

On 6/9/10 at 7:21 AM, juanjose at yandex.ru (Juan Jose Cardenas) wrote:

>I'm trying to solve a system of non-linear equations that involves
>logarithms of several variables. I have developed code in another
>system to do so using the function lsqnonlin.  Is there an
>equivalent function in Mathematica 7?

>I need to input the function matrix, the initial approximation
>vector, and the precision and get a vector with the solution values
>of the variables.

=46indFit will do this. Or if you need more diagnostics for the
fit, there is NonlinearModelFit. See the documentation for
examples showing usage of FindFit and NonlinerModelFit



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