Re: parameter correlation coefficients by gMinuit or TVirtualFitter

From: Nevzat Guler <nguler_at_jlab.org>
Date: Mon, 27 Aug 2007 14:54:37 -0400 (EDT)

        As far as I know GetCovarianceMatrix and GetCovarianceMatrixElement are to acces to error matrix. But what I want is not the error matrix. I want to acces to parameter correlation coefficients.

        Thanks..

                                Nevzat Guler

On Mon, 27 Aug 2007, Rene Brun wrote:

> Use TVitualFitter::GetCovarianceMatrixElement(int i, int j).
>
> Rene Brun
>
> Nevzat Guler wrote:
> > Hello,
> > How can I access to parameter correlation coefficients by gMinuit
> > or TVirtualFitter ? There is mnmatu in Minuit but I couldn't find how we
> > call it? Best Regards..
> > Nevzat Guler
> >
> > P.S. I want the parameter correlation coefficients not the covariance
> > matrix elements from GetCovarianceMatrix()
> > Many Thanks in advance...
> >
>
>
Received on Mon Aug 27 2007 - 20:54:46 CEST

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