On Tue, Oct 5, 2010 at 3:37 PM, Dimitri Liakhovitski <dimitri.liakhovit...@gmail.com> wrote: > my.data$date
I wouldn't use grid - it suggests you try abline, so something like: > abline(v=my.data$date,lty=2) - to put vertical lines at your data points. For the horizontal grid lines, we can just use the axis tick marks: > axTicks(2) [1] -5 0 5 10 15 20 thus: > abline(h=axTicks(2), lty=2) adjust lty and col options to suit Barry -- blog: http://geospaced.blogspot.com/ web: http://www.maths.lancs.ac.uk/~rowlings web: http://www.rowlingson.com/ twitter: http://twitter.com/geospacedman pics: http://www.flickr.com/photos/spacedman ______________________________________________ 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.
