[R-sig-ME] Query lme4

[Elizabeth Crone]

> In most cases of longitudinal data it would
> be very difficult to distinguish between an autoregressive structure
> and a model with random effects specification (AGEACTUAL|Individual).

I think this is true if observations are POSTIVELY autocorrelated, but the random individual effects should be separable from NEGATIVE autocorrelations, right? [This posting caught my eye because I have been wishing I could use something like lme4 to fit mixed models to data with strong negative autocorrelations, specifically, probability of flowering for plants that flower approximately in alternate years.]