[R] trajectory plot (growth curve)

[Stuart Luppescu]

On Mon, 2010-08-23 at 15:58 -0400, Lei Liu wrote:
> That is, I will plot a growth curve for each subject ID, with y in 
> the y axis, and time in the x axis. I would like to have all growth 
> curves in the same plot. Is there a simple way in R to do it? Thanks a
> lot! 

This article, entitled, "Fitting Value-added Models in R", by Harold
Doran, is relevant and very useful and interesting.
www-stat.stanford.edu/~rag/ed351longit/doran.pdf 
-- 
Stuart Luppescu -=- slu .at. ccsr.uchicago.edu        
University of Chicago -=- CCSR 
才文と智奈美の父 -=-    Kernel 2.6.33-gentoo-r2                
 I have mentioned
 several times on this list that I'm in the process
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 Douglas Bates       R-help (March 2004)  >