Hi, I have a data frame like this: ScoreDoseSex 2.81Dose1M 1.81Dose1M 1.22Dose1M 0.81Dose1M 0.49Dose1M 0.22Dose1M 0.00Dose1M -0.19Dose1M -0.17Dose1F -0.32Dose1F -0.46Dose1F -0.58Dose1F -0.70Dose1F -0.81Dose1F -0.91Dose1F -1.00Dose1F -1.77Dose2M -1.85Dose2M -1.93Dose2M -2.00Dose2M -2.07Dose2M -2.14Dose2M -2.20Dose2M -2.26Dose2M -2.32Dose2F -2.38Dose2F -2.17Dose2F -2.49Dose2F -2.54Dose2F -2.58Dose2F -2.63Dose2F -2.42Dose2F
I can make the dotplot using lattice package: library(lattice) dat<-read.table("test.txt",header=T,sep="\t") dotplot(Score ~ Dose | Sex, groups=Sex, data=dat) How can I add mean line and stdev bar around mean line to this dotplot? I have searched maillists, only several post about add sth to dotplot, but they are not what I want. I know it may have sth to do with panel.function, but don't know how to implement it. I think the mean and stdev bar are popular additions to dot plot, don't know why there is no argument to control this kind of plotting. Thanks. Xiaokuan ____________________________________________________________________________________ TV dinner still cooling? [[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.