I think what you are encountering is a standard R default. R, by default, adds 4% to the axes. I suspect that this is to avoid graphing points right on the x or x axis and thus obscuring them.
Have a look at ?par xaxs for more information and how to change the default. --- On Mon, 12/28/09, Dean1 <web13s...@yahoo.co.uk> wrote: > From: Dean1 <web13s...@yahoo.co.uk> > Subject: [R] refering to the 'boundaries' of a graph > To: r-help@r-project.org > Received: Monday, December 28, 2009, 8:55 AM > > Please see this code for a demonstration of my problem... > > xlim <- c(-1,5) > plot(1:4, xlim=xlim) > abline(v=xlim[1]) > abline(v=xlim[2]) > > When I refer to xlim, it is not referring to the boundaries > of the graphical > region, it refers to the maximum and minimum xticks. > My question is how can > I refer to the x axis boundaries (and similarly y axis) of > the graph? > -- > View this message in context: > http://n4.nabble.com/refering-to-the-boundaries-of-a-graph-tp989790p989790.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. > __________________________________________________________________ Looking for the perfect gift? Give the gift of Flickr! http://www.flickr.com/gift/ ______________________________________________ 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.
