By considering this reproducible example
#start code
library(lattice)
dotplot(variety ~ yield | site, data = barley,
layout = c(1,6),
index.cond= function(x,y){median(x)},
panel = function(x,y,...) {
panel.dotplot(x,y,...)
median.values <- median(x)
panel.abline(v=median.values, col.line="red")
mean.values<-mean(x)
panel.abline(v=mean.values, col.line="blue")
#panel.text() #?
})
#end code
I would like to add a label showing respectively the median (red vertical
line) and the mean (blue vertical line) for each panel and possibly tweak
the label positions so that they do not overlap;
I think to understand it has something to do with panel.text() but I can’t
properly set it to work: any help for this?
thanks
max
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