xtable question

Thanks Hank for your quick reply.  Yes, I tried to coerce my nlme object
into a data.frame object but xtable told me I couldn't do that.  The
nlme object is just an nlme model, so I would imagine it would be
similar in nature to an lm object, but with a few more bits.  It looks
like I might have to try to extend the list of available classes in
xtable (this might take some time!) or do something more manual.  Would
be glad to hear more suggestions!

An nlme object is not just an extension of an lm object.  There is a
lot more going on in nlme or lme than is the case in lm.

I expect that in creating a table from such an object you want the
table of estimates of the fixed-effects parameters, their approximate
standard errors and so on displayed as a table.  To get that table you
apply summary to the fitted model and save the result.  There is a
component of that object with a name like ttable which is the table of
fixed-effects estimates, etc.  Use

str(summary(lmeFittedModel))

to find the exact name and format.