With xx as your data.frame library(ggplot2) qplot(a, id, data=xx, color=b)
--- On Wed, 1/5/11, ANJAN PURKAYASTHA <anjan.purkayas...@gmail.com> wrote: > From: ANJAN PURKAYASTHA <anjan.purkayas...@gmail.com> > Subject: [R] Plotting colour-coded points > To: r-help@r-project.org > Received: Wednesday, January 5, 2011, 2:00 PM > Hi, > I have a file of the following type: > > id a b > 1 0.5 5 > 2 0.7 15 > 3 1.6 7 > 4 0.5 25 > .................... > > I would like to plot the data in column a on the y-axis and > the > corresponding data in column id on the x-axis, so > plot(a~id). However I > would like to colour these points according to the data in > column b. > column b data may be colour coded into the following bins: > 0-9; 10-19; > 20-29. > Any idea on how to accomplish this? > TIA, > Anjan > > -- > =================================== > anjan purkayastha, phd. > research associate > fas center for systems biology, > harvard university > 52 oxford street > cambridge ma 02138 > phone-703.740.6939 > =================================== > > [[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.