[R-sig-ME] variance function in lmer

[Douglas Bates]

On Mon, Jun 22, 2009 at 3:45 PM, Michael Li<wuolong at gmail.com> wrote:
> Hi, lme() allows the use of variance function in the "weights" option.
>  In lmer() the "weights" seems to expect actual weights rather than a
> function (as in lm()).

And it's even documented that way too :-)

> Can variance functions be used in lmer()?

Not currently, no.