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RE: Fitting models


From: Sebastian Roller
Subject: RE: Fitting models
Date: Tue, 14 Dec 2010 13:35:45 +0000



> Subject: Re: Fitting models
> From: address@hidden
> Date: Tue, 14 Dec 2010 08:25:47 -0500
> CC: address@hidden
> To: address@hidden
>
> On Dec 14, 2010, at 6:42 AM, Sebastian Roller wrote:
>
> > Hello,
> > i'm Sebastian.
> > I'm using octave in order to fit many values.
> > The values come from an engine-model of my university (hcci-model).
> > The person before me, used MATLAB, and my work is now, to do the same with octave.
> > In MATLAB is used the fitting function "smoothing spline". But this function is not available
> > in octave.
> > So my question is, if anybody knows a simiular function in octave and how to use it???
> >
> > values:
> >
> > x-axes: crank angle
> > y-axes: temperature(K) / pressure(bar)
> >
> >
> > Thanks Sebastian
>
> If you are referring to the cubic smoothing spline (csaps) that is included in Matlab's curvefiting toolbox, Octave Forge has something similar (same?)
>
> http://octave.sourceforge.net/spline-gcvspl/overview.html
>
> Ben
>
> Yeah, but i think it's called "smoothing spline" or is that the same function like csaps?

I will try the spline functions in octave and will report it...

Sebastian
>

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