On Tue, Jul 28, 2009 at 6:58 AM, Peter Ehlers<ehl...@ucalgary.ca> wrote: > David, > ?panel.abline does not indicate that 'from/to' are arguments to > that function. If you read the help page carefully, you'll see > that 'from/to' apply to panel.curve(). Perhaps you thought that > the '...' argument can take 'from/to'; again the help page makes > it clear that those are to be *graphical* parameters. > > One quick fix would be to use panel.curve with, e.g. expr set to > a + b*x: > panel.curve(2 + .5*x, ...)
Yes, that would be my suggestion too, or using panel.segments fab <- function(x) a + b * x panel.segments(from, fab(from), to, fab(to)) -Deepayan ______________________________________________ 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.
