See argument 'col' to plot()/points(). Setup a 'col' vector of length equal to the number of data points and have the 'C' variable specify the colors of the individual elements. Then call plot()/points() with argument 'col'.
My $.02 /HB On Fri, Sep 12, 2008 at 3:29 PM, Amanda Young <[EMAIL PROTECTED]> wrote: > Hi, > I am a complete R rookie so this question is probably really simple > but I haven't found an answer on the web that I can understand. > > My data frame has 3 columns, A, B and C. A and B have numbers (about > 8000 rows), C is a factor which is either true or false. So I can > plot A vs B with plot(dataframe$A, dataframe$B). However, I would > like the points to be different colors depending on whether C is True > or False. Even better, if C had more than 2 groups, like group 1,2,3 > can I make all 3 different colors, etc? It would be really helpful to > give an example using my scenario since I have a lot of trouble > understanding other examples on the web because the data is not set > up like my data. > > Thanks so much!!! > Amanda > > > > > [[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.
