If you just want to limit the plot, then specify xlim and ylim in the plot call and everything outside of those ranges will be silently ignored in the plotting.
-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of elaine kuo > Sent: Monday, October 11, 2010 9:45 PM > To: r-help@r-project.org > Subject: [R] Extracting data subset for plot > > Dear list, > > > > I want to make a plot based on the following information, using the > command > plot. > > variable A for x axis : temperature (range: -20 degrees to 40 degree) > > variable B for y axis : altitude (range: 50 m to 2500 m ) > > > > The data below 0 degree of X variable wants to be erased tentatively. > > Please kindly advise the command to extract the data ranging from 0 > degree > to 40 degrees. > > Thank you. > > > > Elaine > > [[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. ______________________________________________ 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.