[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Retract [Bug-gsl] gsl_multifit_linear() covariances incorrect due to
Re: Retract [Bug-gsl] gsl_multifit_linear() covariances incorrect due to sorted singular values?
Thu, 08 Feb 2007 14:56:47 -0500
Thunderbird 126.96.36.199 (X11/20070103)
Doug Rogers wrote:
> I've noticed that the singular values returned by SVD are sorted,
> destroying the relationship that they had with their column vector. This
> means, I believe, that the covariances calculated in
> gsl_multifit_wlinear(), et al., are not in the proper order - they
> correspond to different solution coefficients.
Well, it looks like it was operator error. I summed over the wrong
index. Sorry for any pain I may have caused.
Innovative Concepts, Inc. www.innocon.com 703-893-2007 x220