> Further I do not see a simple method to label numerical > variables. I often encounter discrete, but still metric data, as e.g. risk > scores. Usually it would be nice to use them in their original coding, > which may include zero or decimal places and to label them at the same time.
## For this specific case, I use a "position" attribute. tmp <- data.frame(y=rnorm(30), x=factor(rep(c(0,1,2,4,8), 6))) attr(tmp$x, "position") <- as.numeric(as.character(tmp$x)) tmp as.numeric(tmp$x) attr(tmp$x, "position") bwplot(y ~ x, data=tmp) panel.bwplot.position <- function(x, y, ..., x.at) { for (x.i in x.at) { y.i <- y[x.i==x] panel.bwplot(rep(x.i, length(y.i)), y.i, ...) } } bwplot.position <- function(formula, data, ..., x.at) { if (missing(x.at)) { x.name <- dimnames(attr(terms(formula),"factors"))[[2]] x.at <- attr(data[[x.name]], "position") } bwplot(formula, data, ..., x.at=x.at, panel=panel.bwplot.position, scales=list(x=list(at=x.at, limits=x.at+c(-1,1)))) } bwplot.position(y ~ x, data=tmp) ## The above is a simplified version of ## panel.bwplot.intermediate.hh ## in the online files for ## Statistical Analysis and Data Display ## Richard M. Heiberger and Burt Holland ## http://springeronline.com/0-387-40270-5 ## ## An example of a boxplot with both placement and color of the boxes ## under user control is in ## ## http://astro.ocis.temple.edu/~rmh/HH/bwplot-color.pdf ______________________________________________ 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