On Sun, 2004-06-27 at 18:24, XIAO LIU wrote: > R users: > > I want X-Y plotting with axes in reverse direction such as (0, -1, -2, > -3, ....). How can I do it? > > Thanks in advance > > Xiao
If I am understanding what you want, the following should give you an example: # Create x and y with negative values x <- -1:-10 y <- -1:-10 # Show regular plot plot(x, y) # Now plot using -x and -y # Do not plot the axes or annotation plot(-x, -y, axes = FALSE, ann = FALSE) # Now label both x and y axes with negative # labels. Use pretty() to get standard tick mark locations # and use rev() to create tick mark labels in reverse order axis(1, at = pretty(-x), labels = rev(pretty(x))) axis(2, at = pretty(-y), labels = rev(pretty(y))) HTH, Marc Schwartz ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html