Hi Bert, Dennis, I'll agree that using a barchart was a poor choice. I was in fact using a notched bwplot to show the median and confidence interval of the median. In this case it's the median and confidence interval that I want to highlight, and I find that the visual noise of the box and whiskers is detracting from the focus, and those wee notches are not much to focus on. So, I'd like to draw a stripplot with error bars, preferably in Lattice. Let's call this a TIE fighter plot. Any suggestions?
Cheers, Shaun On 4 July 2013 18:00, Dennis Murphy <djmu...@gmail.com> wrote: > If you consult the lattice package help, you'll discover there is no > panel_errorbar() function, which would imply the package developers > have a distaste for that type of graphic. If you fish around the > R-help archives, though, you might be able to find someone who wrote a > function to do error bars in lattice. (Use a searchable archive such > as Nabble to hunt for it.) > > Error bar plots are easier to do in the ggplot2 package, since there > is a specific function to generate the error bar 'geometry' > (geom_errorbar). See http://docs.ggplot2.org/current/ for an expanded > version of the package help pages, which include the graphs generated > by the code. I believe there's also a base graphics version that you > can get from the gplots package, but I don't know a lot about it. > > Dennis > > On Thu, Jul 4, 2013 at 2:53 PM, Shaun Jackman <sjack...@gmail.com> wrote: > > Hi, > > > > I'd like to draw a lattice barchart of means with error bars to show > > the standard deviation. I have the barchart, how do I add the error > > bars? > > > > require(datasets) > > require(lattice) > > x <- aggregate(weight ~ Diet, ChickWeight, function(x) c(mean=mean(x), > > sd=sd(x))) > > barchart(weight[,'mean'] ~ Diet, x) > > > > Thanks, > > Shaun > > > > ______________________________________________ > > 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. > [[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.
