> I would like to join repeated measures for patients across two visits using
> a line. The program below uses symbols to represent each patient. Basically,
> I would like to join each pair of symbols.
This is easy in ggplot:
install.packages("ggplot")
library(ggplot)
qplot(visit, var, id=patien
Just one correction (although in this case it does not change the
output) -- use group = patient rather than group = symbol[patient]:
xyplot(var ~ visit, group = patient, type = "b", auto.key = list(space
= "right"),
par.settings = list(superpose.symbol = list(pch = symbols)))
On 9/6/06, Gabo
Make each pair of points a separate group using group= and specify
that both points and lines be used via type = "b". Also set the
symbols in par.settings= so that they are accessed by both
the main plot and the legend:
xyplot(var ~ visit, group = symbols[patient], type = "b",
auto.key = list(
I would like to join repeated measures for patients across two visits using
a line. The program below uses symbols to represent each patient. Basically,
I would like to join each pair of symbols.
library(lattice)
patient <- c(1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9)
var <-
c(826,119,168,90,572,323,
