Look at the examples for cnvrt.coords in the TeachingDemos package, they might give you some ideas to accomplish what you want.
-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] (801) 408-8111 > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of tom soyer > Sent: Wednesday, January 23, 2008 8:14 PM > To: r-help@r-project.org > Subject: [R] plot help > > Hi, > > Suppose I already have two plots on the same screen, and I > want to draw lines in each of them. Is that possible in R? It > seems that once you have two plots on the screen, you can > only draw lines in the the last plot, never the 1st. Here is > what I mean: > > #some data > y1=rnorm(1:3) > y2=rnorm(1:3) > > #draw two plots on the same screen > par(mfrow=c(2,1),oma = c(6, 0, 5, 0)) > par(mar=c(0, 5.1, 0, 5.1)) > plot(y1,xaxt="n",type="n") #1st plot > par(mar=c(0, 5.1, 0, 5.1)) > plot(y2,xaxt="n",type="n") #2nd plot > > #try to draw lines onto each plot on the screen > lines(y2) #draws a line in the 2nd plot > lines(y1,col=2) #also draws a line in the 2nd plot, but > that's not what I want. I want to draw the line in the 1st > plot instead. > > Does anyone know if after more than one plot were drawn, can > I still call the 1st plot and draw a line in it? > > Thanks, > > -- > Tom > > [[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.
