I suggest the panel.dotplot.tb in the HH package. It is a lattice panel function and therefore works with standard trellis formulas including conditioning variables and grouping variables.
library(HH) example(panel.dotplot.tb) Since you define what you want in terms of Minitab, I mention that this is available in the Graphs menu with Rcmdr when you install the RcmdrPlugin.HH package. Rich ______________________________________________ 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.
