On Thu, Aug 13, 2009 at 6:34 AM, willow1980<jianghua....@shef.ac.uk> wrote: > > Dear Professor Murdoch, > That is exactly the difficulty for me. I don't know how to make a prediction > with lmer using "expand.grid"; at the moment, I can use > “mo...@x%*%fixef(model)” to get predicted values for existing observational > data, but not data by "expand.grid". Actually, if I know this, I can then > use "persp" or "wireframe" to plot 3-D surface graph. Do you know or have > available code for this aim?
?lattice::levelplot has an example of this (using a loess() fit), that applies to wireframe as well. -Deepayan ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
