Create a custom panel function, e.g.
library("lattice") p <- barchart((1:10)^2~1:10, horiz=FALSE, ylim=c(0,120), panel=function(...) { args <- list(...) panel.text(args$x, args$y, args$y, pos=3, offset=1) panel.barchart(...) }) print(p) lattice barchart with labels http://img215.imageshack.us/img215/4818/panelfuncy.png