Re: 8 independent variable curve fitting.

[Olaf Till]

On Tue, Jun 02, 2015 at 06:43:21PM +0900, Tatsuro MATSUOKA wrote:
> ----- Original Message -----
> >From: Doug Stewart 
> >To: help-octave
> >Date: 2015/6/2, Tue 05:41
> >Subject: 8 independent variable curve fitting.
> > 
> >
> >I have a problem that has 8 independent variables and one output.
> >We have taken 400 samples and now want to fit an equation to these data 
> >points.
> >Some of the relation ships are nonlinear.
> >Which octave function should I use to do the curve fitting?
> >
> To my knowledge, you can use "leasqr" and "nonlin_curvefit" in the optim 
> package.
> 
> http://octave.sourceforge.net/optim/function/leasqr.html
> 
> http://octave.sourceforge.net/optim/function/nonlin_curvefit.html

Not sure if I understand you right. What are the variables you want to
determine by fitting? What variables do you assume to be given in the
data points? What are the variables in which your relation is
non-linear, the variables you want to determine by fitting or other
variables?

Olaf

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