Dear R developers, I would like to have R choose the limits of the y-axis semi-automatically, e.g., zero should be included, but the maximum should be chosen depending on the data.
Examples: plot(1:10, 1:10) # selects min and max automatically plot(1:10, 1:10, ylim=c(1, 10)) # manual definition plot(1:10, 1:10, ylim=c(0, Inf)) # this would be a nice feature, i.e. lower y limit = 0 defined manually, upper limit = 10 selected automatically The relevant code from plot.default would have to be modified: old: ylim <- if (is.null(ylim)) range(xy$y[is.finite(xy$y)]) else ylim new: ylim <- if (is.null(ylim)) range(xy$y[is.finite(xy$y)]) else if(length(ylim) == 2 & ylim[2] == Inf) c(ylim[1], max(xy$y[is.finite(xy$y)]) else ylim and some more if-else statements if cases like ylim=c(0, -Inf), ylim=c(Inf, 0), ylim=c(-Inf, 0) and ylim=c(-Inf, Inf)[as a replacement for NULL/ autoselection] and ylim=c(Inf, -Inf)[autoselection, reversed y axis] should be handled correctly. I would find such a feature useful. Do you think it would interfere with other functions? Thank you for your consideration. Best wishes, Matthias Gondan ______________________________________________ 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.