On Thu, 11 Nov 2021, Jeff Newmiller wrote:
I strongly recommend that you change your way of thinking when it comes to ggplot: if your data are not yet in one data frame then your data are not yet ready for plotting.
It is possible to specify separate data frames for different layers of the plot, but this severely complicates building legends.
Jeff, I understand your concern and I'm willing to take the time to make each plot as effective as is possible with ggplot2. My data sets are large; the total is 7,344,118 lines; the largest set contains 834,493 lines. Thanks very much, Rich ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.