If I understand you correctly, there are so many ways to do this (ggplot2, lattice, base graphics with multiple graphs per page via ?layout,...) that I am puzzled as to how you failed to find what you needed. Exactly what was it that you read that left you unable to do this? Perhaps some additional links need to be created.
Incidentally, did you check the CRAN graphics task view? Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." H. Gilbert Welch On Sun, Feb 2, 2014 at 11:09 AM, David Parkhurst <parkh...@imap.iu.edu> wrote: > I've tried to figure out how to do this from what I read, but haven't been > successful. Suppose I have a dataframe with variables Date, X, and Y (and > maybe U, V, and Z) where X, Y, etc. have different units. I'd like to plot > Y vs. Time above X vs. Time, above one another. > > For example, X is the number of gulls counted on a reservoir, and Y is the > number of coliform bacteria counted on a petri plate from a water sample > leaving the reservoir, so these have very different ranges. U and V might be > numbers of geese and numbers of ducks counted on the same days. > > What commands would I use to create such a set of plots? > Thank you for any help. > David > > ______________________________________________ > 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. ______________________________________________ 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.