Re: puzzled with result from gsl_multifit_linear...

At Thu, 22 Nov 2007 17:00:29 +1100,
John Pye wrote:
> Thanks for this. I think you may be right, and I should be implementing
> this using orthogonal regression. Are you able to comment on the
> correspondence of linear/orthogonal regression with my approach of
> solving the overspecified system a*(x-x0)+b*(y-y0)+c*(z-z0)=0 using SVD?

Golub and Van Loan's "Matrix Computations" has a section on using the
SVD to compute orthogonal regressions -- I think that should give you
the information you need.

-- 
best regards

Brian Gough

Network Theory Ltd,
Publishing Free Software Manuals --- http://www.network-theory.co.uk/