Some Basic lmer Questions

Andrew Robinson said the following on 1/14/2008 12:50 PM:

On Mon, Jan 14, 2008 at 03:21:20PM -0500, Kevin E. Thorpe wrote:

Finally, (and feel free to point me at suitable references)
how does one determine the appropriate correlation structure
to use in these models?

See above!

Andrew

With the exception that lmer currently does not support correlation 
structures. If you really need to estimate correlation parameters then 
you may need to use the nlme package.

--sundar