I am assuming that you want to desplay all the data and highlight the subset. Set up a vector to indicate the breakdown of the data and you can do it fairly easily in ggplot2 if you treat the vector as a factor.
library(ggplot) mydata <- data.frame(x=1:21, y= -10:10) z <- ifelse(mydata[,1]>5 & mydata[,2] >5, 1, 0) # identify points >5 mydata <- data.frame(mydata, z) ggplot(mydata, aes(x=x, y=y, colour= factor(z))) + geom_point() --- On Mon, 8/24/09, Edward Chen <edche...@gmail.com> wrote: > From: Edward Chen <edche...@gmail.com> > Subject: [R] help with recalling data points in a specific region of the plot > To: r-help@r-project.org > Received: Monday, August 24, 2009, 12:55 PM > Hi all, > > Is there a quick way to display or recall data points from > a specific region > on the plot? For example I want the points from x>5 and > y>5? > Thank you very much! > > -- > Edward Chen > > [[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. > __________________________________________________________________ Looking for the perfect gift? Give the gift of Flickr! http://www.flickr.com/gift/ ______________________________________________ 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.
