Searched archives and found some old email threads on the topic. But mot
exactly what I think I need. Suppose I have a datafile such as tmp.
tmp <- data.frame(var1 = c(rnorm(1000), rnorm(1000, 1, 1)), var2 = gl(2, 1000))
I'd like a plot similar to the one below, but with an abline of v=0 in the
lower panel and v=1 in the upper panel. Code below creates two lines in each
panel, not quite sure how to separate them by panel.
densityplot(~ var1|var2, tmp,
type = c('g', 'l'),
layout = c(1,2),
panel = function(x, ...){
panel.densityplot(x, ...)
panel.abline(v = c(0,1))
}
)
Thank you
Harold
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