[R] Possible bug in lmer nested analysis with factors

[Yan Wong]

On 16 Sep 2005, at 16:57, Yan Wong wrote:

> Hello,
>
> Is this a bug in the lmer routine?
>
> ...
> Error in lmer(a ~ b + (1 | c/d)) : entry 0 in matrix[0,0] has row  
> 2147483647 and column 2147483647
> In addition: Warning message:
> / not meaningful for factors in: Ops.factor(c, d)

Sorry, I forgot to specify:

R 2.1.1, Mac OS X 10.4.2, lme4 version 0.98-1, Matrix version 0.98-7.

Yan