Your x values look to be multiples of two, therefore you might be interested in using log values for the x axis.
x = c(1,2,4,8) y = c(1,2,3,4) plot(x, y, log="x", xaxt='n') axis(1, at=x, labels=x) ______________________________________________ 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.