Hi, I have modified the USJudgeRatings data (available in R) to illustrate my question.
# Use the first 4 variables of USJudgeRatings and add a group variable with two levels USJudgeRatings <- USJudgeRatings[,1:4] USJudgeRatings$group <- factor(c(rep(1, 22), rep(0, 21))) # I can draw a pairs graph where members of each group are drawn in different colors: pairs(USJudgeRatings[,1:4], col = c(2,3)[USJudgeRatings$group], pch = c(21,3)[USJudgeRatings$group]) # I would also like to add a smooth line to each subplot like pairs(USJudgeRatings[,1:4], panel=panel.smooth) # but I want the smooth to be done for each of the group, i.e. I want two smooths per subplot. # this creates only one smooth pairs(USJudgeRatings[,1:4], col = c(2,3)[USJudgeRatings$group], pch = c(21,3)[USJudgeRatings$group], panel = panel.smooth) # I understand that panel.smooth is a function that is called for each subplot. I don't know how to tell it to do a smooth for each of my group in each of the subplot. Any help would be appreciated! Best, Marie-Pierre ______________________________________________ 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.
