Hi:
Here's an example from the ggplot2 package using the Orthodont data from
Pinheiro & Bates (2000):
library(nlme)
library(ggplot2)
p <- ggplot(data = Orthodont, aes(x = age, y = distance, group = Subject,
colour = Sex))
p + geom_line()
?Orthodont will give you some
Greetings,
I am new to R. Right now I'm most interested in the spaghetti plots
of achievement over time by student ID associated with longitudinal
analysis. How can I do a spaghetti plot of all students, but color
the lines by group membership such as gender or race, and indicate
this color sche
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