something like this will get you going, assuming your data are in a dataframe called “qual”
# qual <- read.table(pipe("pbpaste"), header=T, sep='\t') boxplot(formula=Time~Distance+Season, data=qual) Followup question from me: i can’t see why boxplot(formula=Time, data=qual) should return the error "can’t find Time” “Time~" and “~Time" don’t help Doesn’t that make the formula interface to boxplot broken for one-variable non grouped plots? Best, t On 17 May 2011, at 12:31 PM, Vikas Garud wrote: > Hi, > > I am a consultant in Quality Management. I am exploring the use of R > with any GUI - R commander/Rkward for doing analytical work. Have > installed R, R Commander and Rkward. > > I hope to learn by doing various exercises that I use for teaching > analytical techniques to my clients. I would be posting the data on > this mailing list, and the rkward mailing list wherever I get stuck. > > First such technique I am trying to explore is the use of boxplots. > The data is pasted below: > Season Transporter Distance Tonnage Time > 1 1 500 1 17 > 1 1 500 2 22 > 1 1 1000 1 23 > 1 1 1000 2 29 > 1 1 1500 1 33 > 1 1 1500 2 38 > 1 2 500 1 19 > 1 2 500 2 26 > 1 2 1000 1 30 > 1 2 1000 2 35 > 1 2 1500 1 42 > 1 2 1500 2 42 > 2 1 500 1 18 > 2 1 500 2 24 > 2 1 1000 1 25 > 2 1 1000 2 26 > 2 1 1500 1 35 > 2 1 1500 2 38 > 2 2 500 1 21 > 2 2 500 2 24 > 2 2 1000 1 28 > 2 2 1000 2 37 > 2 2 1500 1 36 > 2 2 1500 2 44 > > In this exercise, I am trying to plot box plots of the variable > "Time", the last column and separated by all the other variables- > Season, Transporter, Distance and Tonnage. I expect the output in > form of multiple box plots, arranged side by side so that I can > compare the time performance for, say, season 1, transporter 2, > Distance 500 and tonnage 2 with, say, season 2, transporter 1, > Distance 500 and tonnage 2. The box plot command in R Commander > (Grpahs->Boxplot...) has a button called "plot by groups" presumably > to achieve what I am trying to do. However, on clicking I don't get > any further output. What am I missing? (There is nothing equivalent > to this button under Rkward) > > I tried to search the mailing list on box plot, but could not find > anything relevant. I have also searched in manual and seen this type > (or even more complex analysis) being done on terminal. However, I > need to do it under (any) GUI. Any help is highly appreciated. > > Thanks > Vikas Garud > > ______________________________________________ > 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.