Thank you all ;)


On Wed, Jul 3, 2013 at 4:28 PM, S Ellison <S.Ellison@lgcgroup.com> wrote:

> > Now I have question:   what about y=b  fitting?  is there any model to
> > force or  impose the ax to be zero
>
> Rui Barradas has answered correctly for a simple lm case.
>
> You can also do
> lm(y~1) to obtain an estimated mean.
>
> That formulation happens to be quite useful if you are interested in a
> purely random-effects model* fitted using, say, lme, though you won't
> generally get a simple mean for unbalanced data in such a case.
>
> S Ellison
>
>
>
> *******************************************************************
> This email and any attachments are confidential. Any u...{{dropped:13}}

