On Wed, Jun 18, 2008 at 9:09 PM, Tariq Perwez <[EMAIL PROTECTED]> wrote: > Hi > I just realized that when I use linear regression to draw a line through my > data points with something like the following: > > abline(lm(y ~ x)) > > > the length of the line is infinite, i.e., the line goes beyond the smallest > and the largest data values. This seems not very right to me (not to mention > it looks unaesthetic). I do not mean to imply that the straight-line > behavior of my system is maintained throughout. I would like to limit the > length of this line to the range of my data. However, I have not been able > to figure out how to. Very disconcertingly, I found out that all the books > that teach statistics using R seem to be drawing such infinite length-lines. > I would appreciate any advice or suggestions. Regards,
ggplot2 only extends the line as far as your data: qplot(x, y) + geom_smooth(method=lm) You can find out more about ggplot2 at http://had.co.nz/ggplot2. Hadley -- http://had.co.nz/ ______________________________________________ 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.
