> -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of Ista Zahn > Sent: Tuesday, August 16, 2011 4:13 PM > To: g.st...@hourglazz.com > Cc: r-help@r-project.org > Subject: Re: [R] Newbie question - struggling with boxplots > > On Tue, Aug 16, 2011 at 5:24 PM, Geoffrey Stoel <g.st...@hourglazz.com> > wrote: > > Hopefully I will not be flamed for this on the list, but I am > starting out > > with R and having some trouble with combining plots. > > > > I am playing with the famous iris dataset (checking out example > dataset in R > > while reading through Introduction to datamining) > > > > What I would like to do is create three graphs (combined boxplots) > besides > > each other for each of the three species (Setosa, Versicolour and > Virginica) > > with each graph showing showing four boxplots Sepal.Length, > Sepal.Width, > > Petal.Length and Petal.Width. > > > > I can create the boxplot for the total dataset by doing the > following: > > > > data(iris); > > boxplot(iris[1:4]); > > > > However I would like to have this repeated for each Species in > iris$Species, > > I know I can do this with: > > > > boxplot(subset(iris,Species=="setosa", select = (1:4))); > > boxplot(subset(iris,Species=="versicolor", select = (1:4))); > > boxplot(subset(iris,Species=="virginica", select = (1:4))); > > > > but I am lazy AND I want all three to be plotted besides each other > AND I > > don't want to manually type the Species myself. > > > > is there an easier way to do this.... probably yes... > > You could use ggplot, like this: > > library(ggplot2) > iris.m <- melt(iris, id = "Species") > ggplot(iris.m, aes(x = variable, y = value)) + geom_boxplot() + > facet_wrap(~Species, nrow = 1) > > best, > Ista > > > > If you want to help me out... would be deeply appreciated.. > > > > Kind regards, > > > > Geoffrey > > > > (new to R and datamining) > >
Nice plot. I know that this is pretty much what the OP asked for, but I find the arrangement below a little easier to make sense of. ggplot(iris.m, aes(x = Species, y = value)) + geom_boxplot() + facet_wrap(~variable, nrow = 1) Dan Daniel J. Nordlund Washington State Department of Social and Health Services Planning, Performance, and Accountability Research and Data Analysis Division Olympia, WA 98504-5204 ______________________________________________ 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.
