That's normally how its done so you might want to reconsider whether you really want only the line segment; however, if you insist see ?segments
plot(y ~ x) y.lm <- lm(y ~ x) n <- length(x) # x assumed to be in ascending or descending order segments(x[1], fitted(y.lm)[1], x[n], fitted(y.lm)[n]) On Wed, Jun 18, 2008 at 10:09 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, > > > Tariq > > [[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.
