Another alternative is: x <- rnorm(100) z <- gl(2,50) y <- rnorm(100, mean= 1.8*as.numeric(z))
plot(x,y,type="n", axes=F) points(x,y, pch="$",cex=0.7, col=z) axis(1, col="green", col.axis="green",xaxp=c(-6, 3, 9),xpd=T) axis(2, col="red", col.axis="red", yaxp=c(-6, 6, 12),xpd=T) ________________________________________ Daniel Moreira, MD Research Associate Duke University Medical Center DUMC 2626, MSRB-I Room 455 571 Research Drive Durham, North Carolina 27710 Telephone: (919) 681-7132 Fax: (919) 668-7093 E-mail: daniel.more...@duke.edu David Winsemius <dwinsem...@comcast.net> 02/13/2009 03:47 PM To Paul Johnson <pauljoh...@gmail.com> cc Daniel Moreira <daniel.more...@duke.edu>, R-help <r-h...@stat.math.ethz.ch> Subject Re: [R] I want axes that cross I think you ought to worry a bit about who might be laughing at whom. You are asking for a plot with rather unnatural behavior and potentially very misleading to the audience. Here it is, but you bear full responsibility for any consequences: plot(x,y,type="n", axes=F, xlim=c(min(x)-1, max(x)), ylim=c(min(y)-1,max(y))) points(x,y, pch="$",cex=0.7, col=z) axis(1, col="green", col.axis="green",pos=-1) axis(2, col="red", col.axis="red", pos=-2.5) -- David Winsemius On Feb 13, 2009, at 3:22 PM, Paul Johnson wrote: > On Fri, Feb 13, 2009 at 1:42 PM, Daniel Moreira <daniel.more...@duke.edu > > wrote: >> >> Try defining the argument 'pos' in the axis command-line, like: >> >> x <- rnorm(100) >> z <- gl(2,50) >> y <- rnorm(100, mean= 1.8*as.numeric(z)) >> >> plot(x,y,type="n", axes=F) >> points(x,y, pch="$",cex=0.7, col=z) >> axis(1, col="green", col.axis="green", pos=0) >> axis(2, col="red", col.axis="red", pos=-2) >> >> ________________________________________ >> Daniel Moreira, MD >> > > If you actually ran that code and still suggest it as the fix, then I > think you must be joking. Pushing the axes into the middle of the > data cloud in order to make them cross is certainly not making a very > nice looking plot. Not only are there observations outside the area > framed by the axes, but there are axis labels that are overlapped by > observations and by the axes themselves. > > PJ > > -- > Paul E. Johnson > Professor, Political Science > 1541 Lilac Lane, Room 504 > University of Kansas > > ______________________________________________ > 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. [[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.
