On 9/2/08, Steven McKinney <[EMAIL PROTECTED]> wrote: > > > This is close, but maybe not optimal lattice coding. > I haven't yet figured out how to suppress the x axis > labeling. > > bwplot(yield ~ 1|year, panel = function(x, y, ...){panel.bwplot(x, y, ..., > pch = "|"); panel.points(x, mean(y), ..., pch=17)}, data = barley, > horizontal = FALSE, xlab = "") >
A direct translation would be bwplot(yield ~ year, data = barley, horizontal = FALSE, panel = function(x, y, ...) { panel.bwplot(x, y, ..., pch = "|"); mean.values <- tapply(y, x, mean) panel.points(1:2, mean.values, ..., pch = 17) }) and that seems to work. -Deepayan > Steve McKinney > > > > -----Original Message----- > From: [EMAIL PROTECTED] on behalf of Surai > Sent: Tue 9/2/2008 5:53 PM > To: r-help@r-project.org > Subject: [R] lattice command equivalent to points > > Hello, > This is my first post to R-help so forgive me if I'm committing a fatal > error somehow. Feel free to let me know. > > My question is this: I would like to add a triangle to represent the mean > in a box plot generated with the bwplot command. How do I do this? I am > able to do this using the boxplot and points command but points does not work > with bwplot. If you run the following code in R, you'll see that I'm > trying to reproduce graphs from method 2 by modifying code from method 1. > > Thank you, > Surai Jones > > > library(lattice) > attach(barley) > > #method 1 > bwplot(yield~year, pch="|") > > #method 2 > boxplot(yield~year) > mean.values<-tapply(yield,year, mean) > points(1:2, mean.values, pch = 17) > > > > [[alternative HTML version deleted]] > > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.