> Alternatively, I tried in ggplot but here again, I get an error: > >> p <- ggplot(my.df, aes(x, y)) + >> geom_path(aes(colour = fact)) + >> facet_grid(fact2 ~ fact) + >> geom_vline(intercept = my.lines) # how do I select the >> relevant one ?
If you want a different line in each panel, you'll need to construct a data frame - see the example at http://had.co.nz/ggplot2/geom_abline.html for the basic idea. Hadley -- http://had.co.nz/ ______________________________________________ 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.