On 4/11/07, Åsa Granberg <[EMAIL PROTECTED]> wrote:
> Hi all!
>
> My question is why, and what I can do about that
> I sometimes, but not always, get warning-messages like
>
> nlminb returned message singular convergence (7)
> in: LMEopt(x = mer, value = cv)
>
> or
>
> IRLS iterations for PQL did
Hi all!
My question is why, and what I can do about that
I sometimes, but not always, get warning-messages like
nlminb returned message singular convergence (7)
in: LMEopt(x = mer, value = cv)
or
IRLS iterations for PQL did not converge
when trying to fit a model looking like this:
lmer<-(
