lattice - Add SD to dotplot in R -

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i trying make graphs in r , have problem can't solve. use dotplot function plot mean of 16 treatments. works out pretty well, on y axis variables (treatment names) , on x axis value. want add standard deviation points , tried different things found via internet doesn't work. if me (in easy way), happy!

thank reading this!

i have:

library(lattice) d2 <- colmeans(d, na.rm=true) var.labels <- f  ###  f includes names of treatments sd <- sd(d, na.rm=true) new.data <- data.frame(var.labels=factor(var.labels, levels=f), d2, sd) dotplot(var.labels~d2, data=new.data)

one possible solution might be:

dotplot(var.labels~d2+sd, data=new.data)

a nice comparison different dot-charts (standard r, lattice , ggplot2) can found here: summarising data using dot plots

hth


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