Added your code:
flies <- read.table("example12_1.dat",header=TRUE,sep="\t") flies$group <- factor(flies$group,5:1) levels(flies$group) <- paste0("Group ",5:1) boxplot(long ~ group, data = flies, pars = list(las=1, ylim=c(10,110), xaxt="n", bty="n"), horizontal = TRUE, col = "red") axis(1,at=seq(10,110,20)) Almost worked perfectly, except the frame around the plot remains, which is strange as you have bty="n". http://r.789695.n4.nabble.com/file/n4636381/Rplot11.png David -- View this message in context: http://r.789695.n4.nabble.com/Adjusting-format-of-boxplot-tp4636373p4636381.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.