Hi All. I have the commands below to create a stripchart/plot. I was hoping to color the points in the plot by yr, and use a symbol that varied with resp. However, the outcome makes it appear as though the point by point col and pch data is not being passed properly. Any suggestions?
And truthfully, I¹d rather be doing this with Lattice, but I¹ve tried several variations of stripplot and can¹t even get something with the general layout of the stripchart version. Thanks, Bryan ************* Bryan Hanson Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA index <- round(runif(100, 1, 100)) resp <- rbinom(100, 1, 0.5) yr <- rep(c("2005", "2006"), 50) all <- data.frame(index, resp, yr) for (n in 1:length(all$index)) { if (all$yr[n] == 2005) {all$col[n] <- "red"} else {all$col[n] <- "blue"} } for (n in 1:length(all$index)) { if (all$resp[n] == 1) {all$sym[n] <- 1} else {all$sym[n] <- 3} } stripchart(all$index, method = "stack", ylim = c(0,10), col = all$col, pch = all$sym) ______________________________________________ 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.