Re: [Help-gsl] Computing R-square for linear regression

[Patrick Alken]

This does sound useful...do you want to make a patch? :-). For backwards
compatibility it might be best to make a separate function that takes
chi^2 and the data as input and computes R^2, rather than modify the 
existing api.

On Tue, Sep 25, 2007 at 12:12:49PM -0500, Barrett C. Foat wrote:
> It would be handy if the gsl functions return R-sq. too, though, since it 
> is a more meaningful metric of the fit.
> 
> On Tuesday 25 September 2007 11:52, Julian Winter wrote:
> > Hi,
> >
> > Can anyone tell me how to get the R-square value from the GSL linear
> > regression functions, specifically, gsl_multifit_linear and
> > gsl_fit_linear? They only seem to return the chi-square.
> >
> > Thanks,
> >
> > Julian Winter
> > GDA Corp.
> > 200 Innovation Blvd., Suite 234
> > State College, PA 16803
> > 814-237-4060 (tel)
> > 814-689-3375 (fax)
> > address@hidden
> >
> >
> >
> >
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