On Monday 17 January 2005 14:51, Sundar Dorai-Raj wrote: > RenE J.V. Bertin wrote: > > Hello, and (somewhat belated) best wishes for 2005. > > > > Can one order not to draw outliers in bwplot, or at least exclude > > them from the vertical axis scaling? If so, how (or what doc do I > > need to consult)? The options that have this effect in boxplot() do > > not appear to have any effect with bwplot (although outline=FALSE > > in boxplot does *not* change the scaling). > > > > Thanks, > > RenE Bertin > > RenE, > > There may be other solutions but you can do this using the prepanel > option to set the ylim: > > library(lattice) > set.seed(1) > z <- data.frame(x = rt(100, 1), g = rep(letters[1:4], each = 25)) > bwplot(x ~ g, z, > prepanel = function(x, y) { > bp <- boxplot(split(y, x), plot = FALSE) > ylim <- range(bp$stats) > list(ylim = ylim) > }) > > If you actually want to exclude the points (rather than just prevent > outliers from affecting the scale), you will have to modify the > panel.bwplot function in addition to using the above.
Right. panel.bwplot calls stats <- boxplot.stats(y[x == xval], coef = coef) I guess it should have a 'do.out' argument as well. A workaround (without changing the panel function) might be to use something like bwplot(voice.part ~ height, data = singer, par.settings = list(plot.symbol = list(col = "transparent"))) (neither of these would change the limits, of course) -Deepayan ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html