Your data is effectively unreadable. Please use dput() to supply sample data.
Here is one way to do what you want for data frames using the ggplot2 package. library(ggplot2) mydata <- data.frame(x = 1:10, y = rnorm(10), z = c(rep(1,4), rep(2, 6))) ggplot(mydata, aes(x, y, colour= as.factor( z))) + geom_point() John Kane Kingston ON Canada > -----Original Message----- > From: kbw1...@yahoo.com > Sent: Mon, 2 Jul 2012 13:31:36 -0700 (PDT) > To: r-help@r-project.org > Subject: [R] Code scatter plot data from matrix with 3rd column > > Hello > > I am looking for a simple way to plot my data from a matrix (or data > frame) using a 3rd column as category to code the data points. > > for example: > xyz > 543240 > 104230 > 15901 > 203241 > 25781 > 3042340 > 357891 > 405670 > 45780 > 50531 > > Ideally, I'd like 0 or 1 to correspond to a color but I'd settle for a > symbol at this point. I have tried working with pch but can't get it to > work. > > Thanks > Kat > [[alternative HTML version deleted]] > > ______________________________________________ > 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. ____________________________________________________________ GET FREE SMILEYS FOR YOUR IM & EMAIL - Learn more at http://www.inbox.com/smileys Works with AIM®, MSN® Messenger, Yahoo!® Messenger, ICQ®, Google Talk™ and most webmails ______________________________________________ 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.
