Displaying 1 result from an estimated 1 matches for "tp3021672p3021746".
2010 Nov 01
3
Mean and individual growth curve trajectories
I'm trying to understand how to plot individual growth curve trajectories,
with the overall mean trajectory superimposed (preferably in a slightly
thicker line, maybe in black) over the individual trajectories. Using the
sleepstudy data in lme4, here is the code I have so far:
library(lme4)
library(lattice)
xyplot(Reaction ~ Days, data = sleepstudy, group = Subject, type = 'l')