Shaun: I understand that this type of plot is standard in many disciplines, but it really is awful (google on 'Dynamite plots' for some more erudite perspectives). Have you considered bwplot() for your unaggregated data instead?
(No need to reply. It's July 4, and I'm just waving a little flag for better graphs). Cheers, Bert 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. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ 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.
